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WorksheetsCell Reproduction Review_Fall 2022
Total questions: 15
Worksheet time: 9mins
Which of the following is FALSE concerning mitosis and meiosis?
Both of these processes allow genetic variation
Both of these processes require DNA synthesis beforehand.
Both of these processes use the same order of events (PMAT).
Meiosis results in the reduction of chromosomes by half; mitosis results in the same amount of genetic material as in the daughter cells as the parent
Which of the following is a key difference between mitosis and meiosis?
Genetic variation occurs in meiosis; mitosis results in two identical daughter and parent cells.
There is no interphase before meiosis occurs.
Mitosis involves two cells divisions, while meiosis involves only one.
All of these choices are key differences.
One sea anemone is located a long way from another sea anemone in the ocean, and the environment it lives in is stable. What type of reproduction would be most beneficial for this sea anemone? Why?
Sexual reproduction- because it occurs more quickly
Sexual reproduction- because genetic diversity is an advantage
Asexual reproduction- because there are no nearby mates
Asexual reproduction- because it occurs more slowly
Rice has 24 chromosomes in each of its somatic cells. When making more somatic cells through mitosis, it should have ___ chromosomes. But, when making sperm cells through meiosis, the sperm cells will have ___ chromosomes each.
24, 24
24, 12
12, 12
12, 24
What phase of mitosis is shown in the image?
prophase
metaphase
anaphase
telophase
Which phase of mitosis is shown in the image?
prophase
metaphase
anaphase
telophase
During the S phase of interphase, ___ takes place.
protein synthesis
DNA synthesis
mitosis
meiosis
Which of the following COULD be happening?
A zygote is growing into an adult.
An organism is developing gametes.
An organism is reproducing sexually.
Bacteria are being formed that are different from one another.
Which image is the best model of meiosis?
The first image because it produces four haploid cells.
The first image because it produces four diploid cells.
The second image because it produces two haploid cells.
The second image because it produces two diploid cells.
Sea stars and geckos have the ability to lose a limb to escape a predator that is trying to eat them. After they escape, they can regrow the missing limb. What process is used to replace and regrow the missing limb?
meiosis
mitosis
Why is it important that haploid cells are made during meiosis for sexually reproducing organisms?
The offspring need to receive two pairs of chromosomes, one set from each gamete, for the organisms to develop properly.
The offspring will receive more more than two sets of chromosomes so that it may develop properly.
The offspring is diploid and needs to receive two sets of chromosomes from one gamete and zero from the other.
The offspring is formed through asexual reproduction and does not require meiosis.
Meiosis is significant in helping to maintain the continuation of a species by
producing eggs and sperm that are identical to one another.
producing unequal numbers of eggs and sperm.
providing variation, creating unique gametes.
by ensuring asexual reproduction occurs.
Which of the following statements best explains how the orientation of homologous chromosomes during metaphase I contributes to greater genetic variation in gametes?
Genetic recombination occurs because the homologous chromosomes are not connected at their centromeres.
Homologous chromosomes are paired tightly and undergo crossover.
Homologous chromosomes separate from the spindle fibers and move randomly to the daughter cells.
The random alignment of homologous chromosomes ensures the random destination of the chromosomes in the daughter cells.
How does the model of meiosis demonstrate the reason meiosis produces four haploid cells?
The diagram shows that the chromosomes replicate prior to the first division but do not replicate prior to the second division.
The diagram shows that DNA replicates prior to both meiosis I and meiosis II.
The diagram shows that DNA does NOT replicate prior to meiosis I or meiosis II.
The diagram shows that DNA replicates prior to meiosis II but does not replicate prior to meiosis I.
Mitosis is significant in helping to maintain the continuation of a species by
producing gametes that are genetically different
creating somatic cells with half the number of chromosomes as the parent cell
producing an unequal amount of egg and sperm
allowing an organism to reproduce asexually to create identical copies of themselves
