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ValentinkaMS [17]
3 years ago
6

Cancer cells are rogue clones. List and describe three mutations that allow these cells to escape the normal restrictions placed

on our body’s cells.
Biology
1 answer:
Amanda [17]3 years ago
6 0
<span>Cells control cell division in order to maintain normal cell function. If something happens to the control of the cell division, the healthy cells will divide uncontrollably. These new cells are cancer cells. </span>
The mutations in three genes are responsible for development of cancers:
1. Mutation in proto-oncogenes. Proto-oncogenes normally signal cells to grow and differentiate. Proto-oncogenes can become oncogenes due to mutations which result in the uncontrollable division of the cells.
2. Mutation in tumor suppressor genes. In normal cells, tumor suppressor genes suppress genes essential for cell cycle and that way they prevent uncontrollable cell division. However, after a mutation in these genes, suppression is lost and the cell may progress to cancer.
3. Mutation in stability genes. In normal cells, they have no role either in cell death or growth, but they control mutation rate. Mutation in stability genes results in situation where all genes, including proto-oncogenes and tumor suppression genes, are more frequently mutated.
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The diagram below shows four labeled structures of an animal cell.
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Answer:

A)

Explanation:

The nucleus contains genetic information and acts as the control center of the cell. B) is also partially true but A) is the important part about the nucleus.

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2 years ago
Which of the following is a correct statement on the state of an enzyme at the conclusion of a chemical reaction ?
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Answer:

d

Explanation:

8 0
3 years ago
Complete the following sentence: "When ionic compounds dissociate in water, each ion is surrounded by a sphere of hydration: ___
Archy [21]

Answer:

Cations, Oxygen, Anions, Hydrogen

Explanation:

Water molecule is polar (meaning it has dipoles). The oxygen having a higher atomic mass attracts most of the electron cloud of the molecule becoming partially negatively charged and leaving the hydrogen end to be partially positive.

An Ionic compound is one between two atoms where one donates its electrons to the other for both to achieve stable configuration. The two atoms, therefore, become charged and are bought together by electrostatic forces.

When an ionic compound is put in water, it dissociates into its ions (anions and cations) They attract and repel with the polar water molecules depending on their charges. The anions (negatively charged ion) are surrounded by water molecules with the hydrogen ends and the cations are surrounded by water molecules with the oxygen ends.

3 0
3 years ago
Read 2 more answers
When a honeybee pollinates a flower, the symbiosis would be _______
Sedaia [141]

Answer:

The relationship between them is mutualism because both organisms benefit.

Explanation:

The honey bee gains nectar from the plant while the flower is pollinated.

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8 0
3 years ago
A population of Drosophila simulans carries three alleles at the white locus: the wild-type allele at 86 percent, w1 at 9 percen
vladimir1956 [14]

Answer:

the population is polymorphic.

Explanation:

Polymorphism is the discontinuous genetic variation that leads to the production of varying unique kinds or forms of individuals within the population of an individual species.

Take for instance, allelic polymorphism is seen in the presence of multiple alleles that is produced within the members of an individual species as in peppered moths, human blood groups, and two-spotted ladybugs.

We have different causes of polymorphism: polymorphism can be sustained by an equity among variation developed by new mutations and natural selection. Genetic variation might be due to frequency-dependent selection.

3 0
3 years ago
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