The Gap 1, S phase (DNA synthesis), and Gap 2 phases of the cell cycle are collectively called:
a. mitosis.
b. cytokinesis.
c. prophase.
d. interphase.
e. prephase
Answers
The three cell cycle phases known as Gap 1, S phase (DNA synthesis), as well as Gap 2 are collectively referred to as: interphase.
What is DNA?DNA is the genetic material that carries the hereditary information in most living organisms. It is a double-stranded molecule composed of two polynucleotide chains, linked together by complementary base pairing. The four nucleotides in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G). Each chain of the double helix is a sequence of these four nucleotides, and they always pair up in the same way: A with T, and C with G. This is what allows DNA to copy itself during cell division, as each strand can act as a template for the other. DNA is responsible for the coding of proteins, and thus controls the development and functioning of an organism.
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An organisms that produce its own food source using the energy form the sun or from breaking down inorganic molecules is termed a(n)
Answers
An organism that produces its own food source using the energy from the sun or from breaking down inorganic molecules is termed an autotroph. Autotrophs are able to convert energy from sunlight or inorganic compounds into organic molecules through the process of photosynthesis or chemosynthesis, respectively.
In photosynthesis, autotrophs such as plants, algae, and some bacteria use sunlight to convert carbon dioxide and water into glucose and oxygen. This process occurs in the chloroplasts of plant cells.
In chemosynthesis, certain bacteria and archaea can obtain energy by breaking down inorganic compounds like hydrogen sulfide, ammonia, or iron, and use that energy to synthesize organic molecules.
Autotrophs play a crucial role in ecosystems as they are the primary producers, forming the basis of the food chain by providing energy and nutrients for heterotrophs, which are organisms that cannot produce their own food and rely on consuming other organisms.
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1. Why are kids afraid of ghosts? 2. Should I feed the raccoons that visit my trash can? 3. How does mouse color affect mouse survival? 4. Does a mother duck love her babies? Which statement correctly identifies the scientific question and describes why the question is scientific? Question 1 refers to the supernatural. Question 2 reflects a moral or social value. Question 3 leads to a hypothesis that can be tested. Question 4 reflects a question that can't be observed.
Answers
Answer:
The correct answer is - statement - Question 3 leads to a hypothesis that can be tested.
Explanation:
A scientific question is a question that can be answered by logic and reasoning with the help of a hypothesis that can be tested and analyzed by the scientific experient and scientific method.
One can use testing and experimentation to answer the question, survivability of a mouse depend on the color of the mouse is questions based on scientific ideas.
So, supernatural, morality, opinions can not be the base of the scientific questions.
Answer: C
Question 3 leads to a hypothesis that can be tested.
QUESTION 8
A cell has 14 chromosomes. How many chromosomes will it have after it undergoes cytokinesis in mitosis?
OA) 7
B) 28
OC) 14
D)2
E) none
Answers
Answer:
C) 14
Explanation:
There would be 2 daughter cells, but each would have 14 chromosomes
a fully processed mrna molecule should contain all of the following except what?
Answers
A fully processed mRNA molecule should contain all of the following except the option C. introns. In mRNA processing, the primary transcript undergoes several modifications to generate a mature mRNA molecule.
These modifications include the removal of introns, which are non-coding sequences found within the gene. Introns do not carry information necessary for protein synthesis and must be excised to create a functional mRNA molecule.
The remaining segments, called exons, are spliced together to form the final mRNA molecule. Additionally, a 5' cap is added to the mRNA's 5' end, consisting of a modified guanine nucleotide. This cap protects the mRNA from degradation and helps initiate translation. Furthermore, a poly-A tail, composed of multiple adenine nucleotides, is added to the 3' end. This tail aids in stabilizing the mRNA and assists in its transport from the nucleus to the cytoplasm.
In summary, a fully processed mRNA molecule should contain exons, a 5' cap, and a poly-A tail, but it should not retain introns.
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The complete question is:
A fully processed mRNA molecule should contain all of the following except what?
A. Start codon
B. Stop codon
C. Introns
D. Exons
E. Poly-A tail
can anyone help with: In one or two paragraphs summarize Cellular Respiration. Be sure to include the following words: Cellular respiration, Mitochondria, Cytoplasm, Glycolysis, pyruvates, Krebs cycle, Carbon Dioxide, NADH and FADH2 (high energy electron carriers), electron transport chain, Oxygen, Water, and ATP.
Answers
Cellular Respiration is a metabolic process in which mitochondria and cytoplasm work together during Glycolysis, the Krebs cycle, and the electron transport chain. The reactants of these metabolic processes include Oxygen, Water, and the products include pyruvate (in glycolysis), ATP, Carbon Dioxide, NADH and FADH₂ (high energy electron carriers).
What is the process of cellular respiration?The process of cellular respiration is a group of metabolic pathways that generates ATP in aerobic conditions, i.e. in the presence of oxygen which acts as an electron acceptor during the electron transport chain.
The processes of cellular respiration include:
GlycolysisThe Krebs cycleThe electron transport chainTherefore, with this data, we can see that Glycolysis, the Krebs cycle, and the electron transport chain are part of the cellular respiration processes and they work together to generate energy in the form pf ATP.
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Trade winds blow from the horse latitudes toward the______.
equator
the tropics
the poles
Answers
Answer:
The correct answer is - the equator.
Explanation:
The trade winds are the kind of wind that blows towards the equator from the southeast in the southern hemisphere or the northeast in the northern hemisphere, especially at sea.
The horse latitudes are present in both the northern hemisphere and southern hemisphere with calm air and occur between trade winds and the westerlies that move towards the equator.
Which shows the correct order of processes for fungi to reproduce sexually? a fungus that is genetically identical to the parent fungus is produced, a spore forms, and hyphae exchange genetic material. a spore forms, a genetically unique fungus is produced, and hyphae exchange genetic material. hyphae exchange genetic material, a spore forms, and the spore grows into a genetically unique fungus. a spore forms, hyphae exchange genetic material, and a fungus that is genetically identical to the parent fungus grows.
Answers
The right order for the fungi to reproduce sexually is:
hyphae exchange genetic material, a spore forms, and the spore grows into a genetically unique fungus.
What is fungus?Any member of the eukaryotic group of organisms, which also includes the more well-known mushrooms and microbes like yeast and mold, is referred to as a fungus.Some of the examples for Fungi are rusts, yeasts, molds, stinkhorns, truffles, mushroomsWhere can you find fungi?Fungi can be incredibly sophisticated multicellular organisms or single-celled critters. They can be found in almost any location, but the majority of them prefer to dwell on land, primarily in soil or on plant matter, as opposed to the sea or fresh water.Reproduction in Fungus:Most fungi have sexual and asexual reproduction abilities.This enables them to adapt to environmental changes. When the environment is stable, they can spread swiftly through asexual reproduction.Asexual reproduction in fungi:fragmentation Hyphae fragments can sprout new colonies. A fungal mycelium fragments as it splits into pieces, with each piece developing into a new mycelium.buddingMost yeasts and some filamentous fungi engage in budding, which is an additional asexual reproduction strategy. This process results in the development of a bud, whose cytoplasm is continuous with that of the parent cell, on the surface of either the yeast cell or the hypha.producing spores.The majority of fungi reproduce by producing spores, which can endure harsh conditions including extreme cold and a lack of water. Depending on the species and environmental factors, asexual and sexual meiotic spores can both be formed during mitosis. A diploid and haploid stage coexist in the majority of fungi's life cycles.Sexual reproduction in fungi:Plasmogamy, karyogamy, and meiosis are the three successive steps of sexual reproduction in fungi.
Plasmogamy:Plasmogamy unites two compatible haploid nuclei by joining two protoplasts, or the contents of two cells.
Karyogamy: These haploid nuclei fuse together during karyogamy to form a diploid nucleus (i.e., a nucleus containing two sets of chromosomes, one from each parent). The zygote is the name for the cell created during karyogamy. In the majority of fungus, the sole diploid cell throughout the whole life cycle is the zygote.Meiosis:Meiosis (reduced division) starts the haploid phase, which generates the gametes, and restores the haploid amount of chromosomes. With the exception of the zygote, all structures in the bulk of fungi are haploid. At the time of zygote formation, nuclear fusion occurs, and meiosis immediately follows.To learn more about sexual reproduction of Fungi visit:
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Mr. Lim wants to start a sustainable oil palm plantation. In your opinion, how can Mr.Lim control the rat population that frequently destroy crops?
Answers
Answer:
hope it helps
Explanation:
He can grow a cat or birds.
He can set up traps.
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Differentiate between rank and taxon
Answers
Answer:
A taxon is not an organism, but it’s rather any grouping one can distinguish. It is a taxonomic group or unit. A group of organisms that belongs together as per taxonomists. A taxon differs in sizes an example of big one is the beetles and a small one would be the giraffes.
Rank is simply the level of a taxon in the taxonomic heirarchy .
Describe the cellular transport methods that the cell membrane uses to move material
in and out of the cell. (Use the following terms: active transport, passive transport,
osmosis, diffusion, endocytosis, exocytosis, ion pumps plasma membrare.
Answers
Answer:
Explanation:
Diffusion
Molecules move in a random, continual motion and in any direction in a given space. As a result, molecules will move from an area of high concentration to an area of low concentration.The concentration gradient is eliminated as diffusion continues (net diffusion).As the molecules move in a particular space, they become evenly distributed and reach equilibrium.Osmosis
Osmosis occurs across a selectively permeable membrane (like the cell membrane).Water moves through the membrane but not solutes (e.g., sodium).Water flows across the membrane to the solution that has more solutes.Water flows across a membrane because that is where the concentration of water is the lowest.The higher the osmolarity of a solution (the more molecules contained in the solution), the lower the water concentration.Active Transport
Ion pumps are active transporters.Ion pumps move different ions across the cell membrane.Ion pumps may move one kind of ion or the pumps may move more than one kind of ion.Ions are moved against the concentration gradient. Example: The sodium-potassium exchange pump is a primary active transporter, where three sodium ions are moved out of the cell for every two potassium ions that are moved inside the cell.ATP is required.Passive Transport
Ions and molecules move from an area of higher concentration to an area of lower concentration.ATP is not required for this transport.Examples of passive transport include osmosis and simple and facilitated diffusion.Endocytosis
Moving materials outside of the cell to the inside of the cell.Fluid cytosis (or pinocytosis) is the formation of small vesicles that are filled with fluid that may contain lipids, sugars, or amino acids. The vesicles pinch off from the cell membrane, fuse with a lysosome, and the contents enter the cytoplasm.The contents are released into the cytoplasm.Exocytosis
This process if the reverse of endocytosis.A vesicle is created in the cell. The vesicle fuses with the cell membrane and discharges the contents to the outside of the cell.look at the structures in the picture below. what function do these structures have?
Answers
A student proposes that the cell types shown here can be classified as to plant,animal,fungal,and bacterial. The student also proposes that an evolutionary relationship can be hypothesized based on the data. What evolutionary relationship and classification is best supported by the data
Answers
Answer:
Cell types I and III are animal and fungal cells, which are most closely related since they are eukaryotic cells that are heterotrophic.
Explanation: ¯\_(ツ)_/¯
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Which environment is an area of land permanently filled with water and plenty of trees?
A) Grassland
B) Mountain
C) Swamp
D) Tundra
Answers
It’s a swamp because that’s literally what a swamp is...
where are action potentials regenerated as they propagate along a myelinated axon?
Answers
In a myelinated axon, action potentials are regenerated at the nodes of Ranvier as they propagate.
Myelin is a lipid-rich covering that surrounds the axon of some neurons, forming an electrically insulating layer. The insulating effect of the myelin sheath enhances the axon's signal transmission rate.
The myelin sheath is made up of Schwann cells in the peripheral nervous system and oligodendrocytes in the central nervous system.
An action potential is a rapid electrical impulse that travels down the axon of a neuron and results in the release of neurotransmitters into the synaptic cleft.
Action potentials are created by a combination of the depolarization of the neuron's cell membrane and the opening of ion channels.
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explain why men should not accuse women of not delivering male children for them (Heredity)
Answers
Answer:
Because they shouldn’t you’re canceled ♀️
Explanation:
What pushes weather from place to place?
Answers
Answer:
Wind
Explanation:
within the plants, which is the sister group to the conifers?
a. Gingko
b. Cycads
c. Angiosperms
d. The group containing both gingko and cycads
Answers
The sister group to the conifers is the group containing both gingko and cycads. So option D is correct.
Gingko and cycads are two groups of ancient seed plants that are considered the closest relatives to the conifers, which are a group of seed plants that produce cones instead of flowers.
These three groups belong to the division Pinophyta and are believed to have evolved from a common ancestor.
Angiosperms, or flowering plants, are a separate group of plants that belong to the division Magnoliophyta. They are not considered the sister group to the conifers but are instead a more derived group that evolved later in the plant kingdom.
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An astronaut is planning a trip to a newly-discovered planet according to the law of universal gravitation, the astronaut weight in the new planet will be greater than his weight on earth if:
Answers
The new planet has more mass than Earth but the same radius. The mass of the astronaut will be calculated by the use of Newton's gravitational equation. The weight of the astronaut depends completely on its mass and the gravitational acceleration of the planet.
Gravitational acceleration is directly proportional to the mass of the planet and indirectly proportional to the radius of the planet. Hence, when the gravitational acceleration increases the planet's mass will increase therefore the radius will decrease. The astronaut's mass will depend on these factors.
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write at least 5 impacts of genetic manipulation to our society nowadays
Answers
Genetic manipulation refers to the process of altering the genetic makeup of an organism. This technology has significant impacts on our society today, including:
1. Advancements in medicine: Genetic manipulation has led to the development of various medical treatments, including gene therapy and genetically modified drugs.
2. Improved food production: Genetic manipulation of crops has enabled farmers to produce crops that are more resistant to pests, diseases, and environmental factors.
3. Ethical concerns: There are ongoing debates regarding the ethical implications of genetic manipulation, including concerns about the creation of "designer babies" and the potential for unintended consequences.
4. Economic impacts: The use of genetic manipulation in agriculture and medicine has significant economic impacts, both positive and negative, on various industries.
5. Environmental impacts: There are concerns about the impact of genetically modified organisms on the environment, including the potential for unintended consequences and the spread of genetically modified traits to other organisms.
Hi! Genetic manipulation refers to the direct alteration of an organism's genes, and it has several significant impacts on society today:
1. Improved Agriculture: Genetic manipulation has led to the development of genetically modified (GM) crops, which offer higher yields, pest resistance, and enhanced nutritional content.
2. Medical Advancements: Genetic manipulation allows for gene therapy, where specific genes can be targeted to treat or prevent genetic disorders, resulting in improved healthcare outcomes.
3. Environmental Benefits: GM crops can reduce the need for pesticides and fertilizers, leading to decreased soil and water pollution and promoting sustainable agriculture.
4. Ethical Concerns: The use of genetic manipulation raises ethical questions, such as the long-term consequences of altering organisms' genetic makeup and potential misuse of the technology.
5. Economic Implications: The commercialization of GM products can lead to market monopolies, making it difficult for small farmers to compete, and raising concerns about food security and access.
In summary, genetic manipulation has both positive and negative impacts on agriculture, medicine, the environment, ethics, and the economy.
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what class of macromolecule consumes the most energy for biosynthesis?
Answers
The class of macromolecules that consumes the most energy for biosynthesis are proteins. Proteins are composed of long chains of amino acids, which require energy to be synthesized and assembled in the correct order.
The process of protein synthesis, also known as translation, involves the use of ATP (adenosine triphosphate), which is the primary energy currency of cells. ATP is required for the activation of amino acids, which enables them to be linked together to form a polypeptide chain. Additionally, ATP is also required for the translocation of the ribosome, which is the molecular machine that reads the genetic code and links the amino acids together.The energy requirement for protein biosynthesis is further increased by the fact that proteins must be folded into their correct three-dimensional structure. This process, known as protein folding, is facilitated by chaperone proteins, which also require ATP for their activity. Furthermore, post-translational modifications such as phosphorylation and glycosylation, which are common in many proteins, also require ATP.In summary, the biosynthesis of proteins consumes the most energy among the different classes of macromolecules due to the complex processes involved, including the activation of amino acids, ribosome translocation, protein folding, chaperone activity, and post-translational modifications.For more such question on macromolecules
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Which region of the urinary system is not correctly paired with its epithelial tissue?
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explain the role of abiotic in maintaining the balanve of ecosystem
Answers
Answer:
Abiotic factors are the non-living parts of the environment that have a major influence on living organisms. They can help determine things like how tall trees grow, where animals and plants are found, and why birds migrate. The most important abiotic factors include water, sunlight, oxygen, soil and temperature.
Explanation:
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Use Diagram A and B to answer the following question
Diagram
Diagram B
Comparing Diagram A and B, we know that Diagram Ais
RNA because it is single-stranded and contains the sugar ribose
DNA because it is double-stranded and contains the sugar ribose
DNA because it is single-stranded and contains the sugar deoxy
bose
RNA because it is double-stranded and contains the sugar deoxyribose
Answers
Answer:
RNA because it is single-stranded and contains the sugar ribose.
Explanation:
1. What was your Overshoot Day? Explain what overshoot refers to in relation to your own ecological footprint. (Find this answer by selecting the little і info icon beside the overshoot day.)
Answers
Overshoot Day marks the date when humanity's demand for ecological resources and services in a given year exceeds what Earth can regenerate in that year.
What are the characteristics of overshoot day?Earth Overshoot Day marks the date when humanity has exhausted nature's budget for the year. For the rest of the year, we are maintaining our ecological deficit by drawing down local resource stocks and accumulating carbon dioxide in the atmosphere.
Earth Overshoot Day is the day that humanity's demand for ecological resources exceeds the resources Earth can regenerate within that year. 28 July marks Earth Overshoot Day for 2022 - a big shift compared to 30 December in 1970.
Overshoot is driven by four key factors: 1) how much we consume, 2) how efficiently products are made, 3) how many of us there are, and 4) how much nature is able to produce.
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fossil 1 (2x) how would you describe the appearance of this fossil? what type of fossilization has occurred?
Answers
The appearance of fossil 1 (2x) can only be determined if we are provided with the image of the fossil. We cannot describe the appearance of a fossil without looking at it.There are different types of fossilization, and it is important to understand what has occurred to fossilize the organism. The type of fossilization that has occurred can be determined by looking at the mineralization and preservation of the fossil.
Fossil 1's appearance and the type of fossilization that has occurred:
The appearance of fossil 1 (2x) can only be determined if we are provided with the image of the fossil. We cannot describe the appearance of a fossil without looking at it.There are different types of fossilization, and it is important to understand what has occurred to fossilize the organism. The type of fossilization that has occurred can be determined by looking at the mineralization and preservation of the fossil.
This will give clues about how the organism became a fossil.The different types of fossilization are as follows:
1. Carbonization: Carbonization occurs when the organic matter leaves a carbon imprint. The remaining matter is usually thin and flattened.
2. Petrification: Petrification occurs when minerals replace organic matter, which is preserved in its original form.
3. Molds and Casts: Molds are created when organic matter is buried in sediment. The sediment hardens, and the organism decomposes, leaving an empty space. This is called a mold. Casts are created when the mold is filled with minerals or sediment.
4. Trace Fossils: Trace fossils are created by organisms that leave behind impressions or tracks. These include footprints, burrows, and bite marks.
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A scientist investigated DNA replication in two groups of cells, labeled A and B. She injected radioactively labeled nucleotides into cells of each group and allowed DNA replication to begin. When replication was halfway completed, she injected a drug into the cells to stop replication. She then examined the cells to determine the distribution of the newly-synthesized DNA. She found each cell of group A had many segments of new DNA in its nucleus, while each cell of group B had a single segment of new DNA in its cytoplasm. What can the researcher conclude about the cells?
Answers
Answer:
A is a eukaryotic cell while B is a prokaryotic cell
Explanation:
The researcher can conclude that cell A is eukaryotic while cell B is prokaryotic.
In eukaryotic cells, the DNA is located majorly in the nucleus and the replication of the DNA happens in the nucleus. Hence, it is only logical to find segments of new DNA in the nucleus of cell A during replication.
Prokaryotic cells, however, lack a nucleus. Their DNAs lie freely within the cytoplasm. This thus means that replication can only happen in the cytoplasm. Hence, it follows logically to find a new DNA segment in the cytoplasm of cell B.
planet earth King Penguins and Fur Seals King Penguins and Fur Seals are both designed for swimming, and thus are very clumsy on land. With that in mind, answer these questions: Why do the penguins come onto land at all
Answers
Answer:
For breeding and moult purpose.
Explanation:
The penguins come onto the land for breeding and moult purpose. They will also spend time ashore during non-breeding months of their life cycle. They are only active at night on land. They leave the colony early in the morning before sun-rise, and return to the colony after dark with food with it in order to feed their families. They can't breed in water like fish so they comes to the land for breeding.
How many copies of the sepia gene must be non -functional for Drosophila to display the mutant brown eye phenotype
Answers
In order for a fruit fly to display the mutant brown eye phenotype, at least two copies of the sepia gene must be non-functional.
This occurs when the genetic code of one of the two alleles is disrupted, making it incapable of producing the protein coding for eye pigmentation. The disruption of the gene can be caused by a variety of factors such as a point mutation, deletion, or insertion.
When two non-functional copies of the sepia gene are present, the fly will have brown eyes, as the protein coding for eye pigmentation is not being produced. This mutation can be inherited in both a recessive or dominant manner, depending on the type of mutation.
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what environmental and genetic factors affect the growth of a squirrel?
Answers
Answer:
Squirrels cannot live where it gets too hot or too cold. Physical factors such as temperature, availability of water, or mineral nutrients can limit where particular species can live.
what will most likely happen if the plankton population decreases in this ocean system?
Answers
Answer: here
Explanation: If the plankton population decreases, there will be less food available for the shrimp. 2. As a result, the shrimp population may also decrease due to lack of food.
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