NEW
Font size
WorksheetsMastery Check 3.2.1
Total questions: 10
Worksheet time: 8mins
Why is meiosis important for sexual reproduction?
It allows the zygote formed from fertilization to have triple the chromosome number of the organism.
It allows gametes to have twice the original number of chromosomes of the organism.
It allows gametes to have half the original number of chromosomes of the organism.
It allows the zygote formed from fertilization to have half the original number of chromosomes of the organism.
Which best represents one fundamental difference between the processes of mitosis and meiosis?
Meiosis results in 4 haploid cells, and mitosis results in 4 diploid cells.
Meiosis results in 4 haploid cells, and mitosis results in 2 diploid cells.
Meiosis results in 2 diploid cells, and mitosis results in 2 haploid cells.
Meiosis results in 2 diploid cells, and mitosis results in 4 haploid cells.
Which process during meiosis causes the zygote to contain either too many or too few chromosomes?
segregation
crossing over
nondisjunction
independent assortment
Which of the following statements best describes how gene mutations can be advantageous to a species?
Mutations provide genetic variation to a species.
Mutations increase the chromosome number of a species.
Mutations decrease the chromosome number of a species.
Mutations cause DNA to remain unchanged in an individual.
Use the diagram below to answer the following question.
The diagram above depicts the stages of meiosis. Which of the following stages represents the separation of homologous chromosome pairs?
I only
II only
Neither I nor II
Both I and II
A strawberry plant has the ability to reproduce asexually by growing stems called runners, which are roots that form a new plant. Which is an accurate description of how the new plant forms?
Parent cells divide by meiosis to produce the offspring.
Parent cells divide by mitosis to produce the offspring.
Cells in the new plant will have a different genetic makeup than the parent.
Cells in the new plant will have half the chromosome number as the parent.
Which process occurs prior to both mitosis and meiosis?
crossing over
replication of DNA
pairing of homologous chromosomes
division of two cells into four haploid cells
The diagram below depicts a process that occurs during meiosis.
Which would be the result of this process?
an increase in genetic variation in the offspring
a decrease in genetic variation in the offspring
an increase in the number of chromosomes in the offspring
a decrease in the number of chromosomes in the offspring
If a normal skin cell of a chimpanzee contains 48 chromosomes, a normal gamete produced by a chimpanzee will contain how many chromosomes?
24 chromosomes
36 chromosomes
48 chromosomes
96 chromosomes
When an organism undergoes meiosis, which is most accurate?
The organism's maternal and paternal chromosomes are equally divided between the sex cells.
Each member of a homologous chromosome pair randomly separates into a different sex cell.
A copy of all the organism's chromosomes is sent to all sex cells.
All of the organism's maternal chromosomes enter one sex cell, while the paternal chromosomes enter another sex cell
