If sds-page were used for a pure sample of this protein that was preincubated with mercaptoethanol, then there would be?

Hybrids hide one expression of a trait that reappears when hybrids are self-crossed because of segregation.

Segregation refers to the separation or sorting of different alleles during the formation of gametes (reproductive cells). In hybrids, one allele for a specific trait may be dominant and masks the expression of the recessive allele.

However, when hybrids are self-crossed, the alleles segregate during gamete formation, resulting in the re-emergence of the hidden trait. This is due to the fact that each parent contributes one allele for each trait to their offspring, and during meiosis, the alleles segregate independently into different gametes. As a result, the hidden trait can reappear in the offspring of the self-crossed hybrids.

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The correct question is:

Fill in the blanks:

Hybrids hide one expression of a trait that reappears when hybrids are self-crossed because _________.

This statement is true. A single B lymphocyte can recognize multiple antigenic determinants.

Therefore, the statement is true.

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Regarding the relation between chemical compounds and symptoms/damage, let's choose two pollutants. For instance, PCBs can lead to reproductive issues in beluga whales, while mercury can cause neurological damage.
Finally, one symptom associated with endocrine disruption is the disturbance of hormone levels, leading to reproductive abnormalities in beluga whales.

The Case Study 7.1 discusses the pathology of beluga whales in the St. Lawrence estuary, Quebec, Canada. To answer the question regarding the origin and number of the control beluga population used for studying the St. Lawrence estuary population, we need to refer to the textbook's page 399.

To address the question about possible pollutants and their origins that have toxic effects on the beluga population, we can compile a list. Examples include heavy metals like mercury from industrial activities, polychlorinated biphenyls (PCBs) from electrical equipment, and polycyclic aromatic hydrocarbons (PAHs) from oil spills.

Regarding the relation between chemical compounds and symptoms/damage, let's choose two pollutants. For instance, PCBs can lead to reproductive issues in beluga whales, while mercury can cause neurological damage.

Finally, one symptom associated with endocrine disruption is the disturbance of hormone levels, leading to reproductive abnormalities in beluga whales.

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Answer:

Explanation:

cheek cells

Answer:

c. an early stage in the development of an organism

Explanation:

Answer:

c. an early stage in the development of an organism

Explanation:

In general, in organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization and continues through the formation of body structures, such as tissues and organs

The organisms with AA genotype are pure breeds. The alleles of these genotypes are present at each genetic locus, in which one is inherited from the mother and another is from the father.

Genetic locus is the a specific and fixed position on a chromosome where a gene or genetic marker is present.

A variant form of gene is allele, humans have two alleles at each genetic locus which make humans diploid organism.

Thus, it can be concluded that in genotype aa, the a and a alleles are physically located each genetic locus.

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Genotypes are the genetic composition of the organism. The alleles for the genotype are located at the genetic loci of the chromosome inherited from each parent.

The alternate version of the genes that code for the hereditary trait and characteristic of the organism giving them the genotype and the phenotype is the alleles.

Genetic loci is the designated position found on the chromosome of the organism possessing the alleles coding for the genotype that can be purebred dominant and recessive, and heterozygous.

Therefore, alleles are physically present on the loci.

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No, I do not predict that there will be an equal amount of growth on both SBA and PEA+SBA plates.

PEA+SBA is a selective media that inhibits the growth of Gram-positive bacteria, while allowing the growth of Gram-negative bacteria.

Therefore, if the sample of skin microbes has more Gram-positive bacteria than Gram-negative bacteria, then there will be less growth on the PEA+SBA plate compared to the SBA plate.

On the other hand, if the sample has more Gram-negative bacteria, then there may be more growth on the PEA+SBA plate than on the SBA plate.

It is also possible that some bacteria may not grow on one of the plates due to differences in nutrient availability or other environmental factors.

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What enzymes are used to cleave glycerophospholipids? what bond will this enzyme cleave?

The broad family of enzymes known as mammalian PLA2 isozymes cleaves phospholipids at the second position of the glycerol backbone, releasing a free fatty acid and a lysolipid moiety.

Any derivative of glycerophosphoric acid with at least one O-acyl, O-alkyl, or O-alk-1'-enyl residue linked to the glycerol moiety is referred to as a glycerophospholipid.

Here, two fatty acids and phosphoric acid are estered to glycerol, the alcohol. While the polar heads, which are primarily made up of the phosphate group connected to the third carbon of the glycerol molecule, are hydrophilic, the two fatty acid chains that are coupled to the glycerol molecule are nonpolar and therefore hydrophobic. Glycerophospholipids are amphipathic as a result of these two characteristics. They are often arranged in membranes as a bilayer, with the non-polar hydrophobic tails pointing inside and the polar hydrophilic heads extending out toward the aqueous environment.  Glycerophospholipids are made up of a variety of species, most of which are different.

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Answer:

bred jute weight egg thy I he Gogh dB rug gw gtvh

Answer:

The answer would be 400

Explanation:

Like you said, "what is ten times greater than 40" that would 400, because 10 x 40 = 400

Answer:

Ten times meaning you multiply 40 by 10.

40 × 10 = x

400 = x

A number 400 is ten times greater than 40.

Answer: A vacuole undergoes a change in the plant causing wilting and droping.

Explanation:

The vacuole is an organelle, which is a store house of excess water and stored materials. During dehydration, the plant uses water from vacuole. Thus water and stored materials reservoirs get consumed up in this process, the plant experiences scarcity of water. This causes wilting and droping of plant.

The cell membrane is an envelop outside the cells, which causes plants to maintain their structure during stress for example, plant exposed to hypertonic solution. This prevents the cells to burst.

A virus require a living host. A host can be a plant, animal, human, or any other living organism. It does not have a cellular machinery thus uses host cell machinery to replicate its genetic material and produce its progeny.

A. The phenotypic ratio is produced by selfing it:

B. The genotypic ratio from selfing it:

C. The phenotypic ratio for a test cross is 1:1:1:1.

D. Test matings with heterozygous individuals should consistently yield a dominant-to-recessive phenotype ratio of approximately 1:1. Here the ratio of both genotype and phenotype is 50:50.

To estimate the genotype-phenotype relationship, calculate the number of Punnett squares for each allele aggregate. Therefore, in this example, we use one Punnett square box for RR and RR and two Punnett square boxes for Rr.

Calculating the Punnett rectangular ratio as 1:2:1 offers the genotypic ratio, giving the genotypic ratio. One obvious way to find out your genotype is to do a genetic test. Companies like 23andMe can do this fairly cheaply these days. But for this to work, scientists must understand the genetic differences that lead to traits.

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Answer:

Electromagnetic waves can be classified and arranged according to their various wavelengths/frequencies; this classification is known as the electromagnetic spectrum. ... These types of energy include infrared (IR) rays (heat waves given off by thermal bodies), microwaves, and radio waves

Explanation:

Answer:

Toxicology

Explanation:

The Field of Toxicolgy deals with the with the nature, effects, and detection of poisons

Throughout its life cycle, it has two different forms: polyp and medusa. Its DNA molecule is bundled into thread-like chromosomal structures in the nucleus of the each cell, giving rise to the first form, called diploblastic.

A chromosome is indeed a gene-carrying, protein-coated linear thread of DNA that is found in the cell's nucleus and is responsible for transmitting genetic information.

Response and justification Chromosomes are the thread-like DNA bundles that are visible during cell division. These DNA structures arise from the coiling of DNA strands around histone proteins, which resemble thread on a spool, during in the prophase phase of mitosis.

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Answer:

I believe the answer is C.  

Explanation:

This is because the basketball is the bigger object here so that should represent something bigger like the solar system.  Then the tennis ball would represent earth because it is the smaller object here.

Answer:

c

Explanation:

for a, an organ consists of tissues, so it is bigger than a tissue.

for b, a community is bigger than a population. a population would be all the organisms of one species in one area, whereas a community would be all the organisms of all living species in one area.

for d, a tissue is made up of many cells and therefore is bigger than a cell.

The correct sequence that lists life's hierarchical levels from lowest to highest is option c: molecule, organelle, cell, tissue, organ, organism.

Life exhibits a hierarchical organization, with various levels of complexity and organization. Option c accurately represents this hierarchy. It starts with the lowest level, the molecule, which refers to a group of atoms bonded together. The next level is the organelle, which refers to specialized structures within a cell that perform specific functions. The cell is the fundamental unit of life and represents the next level in the hierarchy. Tissues, composed of cells with similar functions, come next, followed by organs, which are made up of multiple tissues working together. The highest level in this sequence is the organism, which is a complete living individual.

Options a, b, and d do not correctly represent the hierarchical levels of life. Option a incorrectly places "population" before "organism," while option b places "community" before "population." Option d incorrectly places "community" after "organism." Therefore, option c is the correct sequence that lists life's hierarchical levels from lowest to highest.

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Option 1 is correct. The re-assembly and disintegration of a large number of complicated proteins into bigger aggregates enables the dynamic component of cytoskeletal function.

The cytoskeleton is composed of three different types: intermediate filaments, microtubules, and actin filaments (microfilaments). Different cells do receive support and structure from the cytoskeleton. Not other macromolecules, but a variety of proteins, make up the cytoskeleton. Microtubules, actin filaments, and intermediate filaments make up the cytoskeleton of a cell. These elements aid in the organisation of the cell's components and give the cell its form. They serve as a foundation for cell division and mobility as well.

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Answer:

D. 4

Explanation:

Cellular respiration occurs within the mitochondria of the cell. Options 2 and 3 are representative of the cell wall and nucleus. Option 1 appears to be the chloroplast of the cell. Option 4 is the mitochondria.

Answer:

4

Explanation:

Answer:

Genes play an important role in determining physical traits — how we look —and lots of other stuff about us. They carry information that makes you who you are and what you look like: curly or straight hair, long or short legs, even how you might smile or laugh.

Hope this helps you ; )

Genes are the unit of heredity. They express the characters of organisms.

Genes are the basic functional unit of heredity. Genes pass from parents to offspring ( i.e. from one generation to another generation). It carries information.

A gene is composed of DNA. DNA is made up of double stranded structure. The process in which gene DNA is convert into RNA is called transcription. and the process during which RNA is convert into protein is called translation. Genes express the characteristics of every organism such as the color of, hair color and height of organisms, etc.

Gene expression is when genes are expressed the genes of the cells. Genes contains the genotype of organisms which express the phenotype of organism. The passing of genes from one generation to other generation is called heredity.

Genes are the unit of heredity. They express the characters of organisms.

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Answer:

D. individual susceptibility.

Explanation:

I took a test and it was correct!

Neurotransmitters are the substances which act as signaling molecules in the body. Many drugs mimic these neurotransmitters by activating different cells in the body.

A neurotransmitter is a signaling molecule which is secreted by a neuron to affect another cell or neuron across a synapse. The cell receiving this signal, any main body part, or the target cell, may be another neuron, however they could also be a gland or muscle cell.

Drugs interfere with the way neurons send, receive, and process signals via neurotransmitters in the nervous system. Some drugs, such as marijuana and heroin, can activate neurons in the body because their chemical structure mimics that of a natural neurotransmitter present in the body. This allows the drugs to attach onto and activate the neurons.

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                                                  Explanations:

Physical change: Physical change is like when the appearance of an object or whatever is changed, and doesn't look much different. Not in a completely new unrecognizable form/substance.

Chemical change: Chemical change is when the appearance of an object is fully changed, unrecognizable, and into a new form/substance

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Persistent

The condition which is known to have been caused by brain damage that might be moderated or reversed is referred to as persistent type of vegetative state.

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Answer and Explanation:

Either C or D (most likely D) Because red and yellow make orange...

it's not easy to eat healthy especially with all the fast-food chains situated around urban areas. but there should still be affordable, healthy food in supermarkets in stuff like that in urban/rural areas. fast-food should not be the only avaliable food around, but since it tastes good and is sold cheaply its eaten a lot, which negatively affects the health of people living in those areas