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s2008m [1.1K]
1 year ago
14

An earthquake hits a small island. all but a few individuals of a lizard species are eliminated in this catastrophe, and an alle

le is lost from the population. this is an instance of __________.
Biology
1 answer:
ira [324]1 year ago
7 0

An earthquake hits a small island. All but a few individuals of a lizard species are eliminated in this catastrophe, and an allele is lost from the population. This is an instance of the bottleneck effect.

Natural events like an earthquake catastrophe which eliminates, by chance, a large number of individuals of a population, can amplify the phenomenon of genetic drift. It is termed as the bottleneck effect. It leads to the elimination of a large part of the genome abruptly.

Immediately, the survivors' genetic composition becomes the whole population's genetic composition, which might be very distinct from the population that existed before the catastrophe.

To learn more about genetic drift here

brainly.com/question/11919163

#SPJ4

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Does anyone know how to answer this question? Please
Sergio [31]

Basically the question is asking you, out of these statements:

A) Meiosis results in four haploid daughter cells

B) Meiosis results in four diploid daughter cells

C) In both processes, DNA replication must occur

D) During meiosis the 2N mother cells produces N daughter cells

E) Mitosis is responsible for genetic continuity, in higher organisms it is essential for growth and repair

which one(s) are true. They provide you information (Venn diagram as well as paragraph) to help you solve this question.

The information tells us what's the correct answers.

Say for an example, the venn diagram tells us that unlike mitosis, during the process of meiosis the 2N mother cells produces N daughter cells (hence why you see the equation 2N ---> N only in meiosis' circle instead of in the middle [which signifies that both mitosis and meiosis shares this trait] or on mitosis' side [which signifies that only mitosis has this trait].) Therefore, D - or the fourth - answer choice is correct, so identify it as a true statement.

A - or the first answer choice - is correct as well. B - or the second answer choice - is not so do not identify it as true. In the paragraph it tells us that instead of two identical daughter cells with the same chromosome number (which is a diploid cell) and DNA, four daughter cells are produced with half the chromosome number, which is a haploid (think of half when you see haploid).

C - or the third answer choice - is right. In the paragraph is states that both processes have DNA replication take place. For mitosis it states "The parent cell goes through DNA replication(...)". For meiosis it states "(...) DNA replication still takes place (...)".

E - or the last answer choice - is correct. In the venn disgram, it has growth and repair under mitosis and the paragraph states that for mitosis, simple organisms use this process as a method of asexual production (which, by the way, maintains genetic continuity).

So, here's our recap:

A is a true statement. Identity it as true.

B is NOT correct thus do <em><u>not </u></em>identify it as true.

C is a true statement. Identify it as true.

D is true thus identify it as such.

E is too true. So, identify it.

Ways to identify includes and is not limited to:

* circling

* highlighting

* selecting

* writing T or true by what's true

* underlining the true statements

* checking the true statements with a check mark

You can signify B as untrue by writing F or false by it, crossing it out, putting an x by it, or simply leaving it be. It all depends on what you're able to do.

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Answer:

ofc

Explanation:

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