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Meiosis and Genetic Variation Practice

Authored by Vanessa Lam-Tran

Biology

9th Grade

Used 11+ times

Meiosis and Genetic Variation Practice
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20 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During meiosis, crossing-over (gene exchange between chromosomes) may occur. Crossing-over usually results in

overproduction of gametes

the formation of identical offspring

fertilization and development

variation within the species

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which two processes result in variations that commonly influence the evolution of sexually reproducing species?

mutation and genetic recombination

extinction and gene replacement

environmental selection and selective breeding

mitosis and natural selection

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The variations that exist in a population of wild giraffes are usually a result of events that occur during

asexual reproduction

genetic engineering

mitotic division

sexual reproduction

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which row in the chart below contains the correct sequence of events involved in the formation of a human embryo?

4

1

3

2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Base your answer to the following question on Which process is illustrated in the diagram below?

nondisjunction

segregation

crossing-over

replication

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two kittens in a litter are genetically different from each other and from their parents. These genetic differences are most directly due to

evolution

asexual reproduction

sexual reproduction

cloning

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As a result of habitat destruction, the size of the Florida panther population has been drastically reduced. It is estimated that there are only 100 to 160 Florida panthers in the wild. Which statement best explains why the Florida panther population may not continue to evolve?

There is a lack of genetic variation for selection to act upon.

There is a lack of competition for limited environmental resources.

There is no longer a chance of a trait providing a reproductive advantage to the population.

There is no longer a chance of mutations occurring in the population.

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