Worksheet: Meiosis

In this worksheet, we will practice explaining the role of meiosis in the formation of gametes.

Q1:

By what type of cell division are gametes formed in adults?

  • AMitosis
  • BMeiosis

Q2:

For the following statements about meiosis, choose whether they are true or false.

Meiosis involves the parent cell dividing twice.

  • AFalse
  • BTrue

Meiosis produces daughter cells that are genetically identical to the parent cell.

  • AFalse
  • BTrue

Meiosis produces cells that are haploid.

  • AFalse
  • BTrue

Q3:

A normal cell in a spinach plant has 12 chromosomes. How many chromosomes will be in the pollen grain?

Q4:

Which of the following statements best explains why it is important that gametes are haploid?

  • ASo when they join in fertilization, the zygote has the correct haploid number
  • BSo the gametes do not get confused with normal body cells
  • CSo when they divide to form an embryo, the DNA does not have to be replicated
  • DSo when they join in fertilization, the zygote has the correct diploid number

Q5:

After fertilization, a zygote is formed.

What type of cell division do cells in the zygote undergo to begin forming a new organism?

  • AMitosis
  • BMeiosis

Q6:

A body cell in a giant panda has 42 chromosomes. How many chromosomes will be in a panda sperm cell?

Q7:

Which of the following is incorrect about meiosis and variation?

  • AEach chromosome in a pair may contain different versions of the same gene.
  • BMeiosis creates genetic variation because each gamete formed has a different set of chromosomes.
  • CHaploid daughter cells are produced in meiosis as they have the full set of chromosomes to start dividing into a zygote.
  • DIn the zygote, one chromosome in each pair comes from each parent.
  • ESexual reproduction produces more variation in the offspring than asexual.

Q8:

Which of the following correctly defines a cell that is haploid?

  • AA haploid cell contains one set of each unpaired chromosome.
  • BA haploid cell contains half of each chromosome.
  • CA haploid cell contains two sets of each paired chromosome.
  • DA haploid cell contains three sets of each unpaired chromosome.

Q9:

How many chromosomes are in a human gamete?

Q10:

What is produced by a cell that has undergone meiosis?

  • ATwo genetically different haploid cells
  • BFour genetically identical haploid cells
  • CFour genetically different haploid cells
  • DTwo genetically identical diploid cells
  • EFour genetically different diploid cells

Q11:

Which of the following correctly defines a cell that is diploid?

  • AA diploid cell contains two sets of each chromosome.
  • BA diploid cell contains one set of each chromosome.
  • CA diploid cell contains three sets of each chromosome.
  • DA diploid cell contains multiple chromosomes.

Q12:

The egg cell of a great white shark has 41 chromosomes. How many chromosomes will be in the zygote?

Q13:

How many chromosomes are in a normal human body cell?

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