Exploring Meiosis and Chromosomal Mutations

How many chromosomes do human somatic cells contain?

• 23

• 46

• 44

• 92

What is the chromosome number in human sex cells?

• 46

• 23

• 92

• 22

What type of cells are produced at the end of meiosis?

• Haploid cells

• Diploid cells

• Daughter cells

• Somatic cells

Which cells are involved in sexual reproduction?

• Somatic cells

• Gametes

• Both somatic cells and gametes

• None of the above

What is the purpose of crossing over in meiosis?

• To create identical cells

• To duplicate chromosomes

• To repair DNA

• To increase genetic variation

During which phase does crossing over occur in meiosis?

• Anaphase I

• Metaphase I

• Telophase I

• Prophase I

What can result from nondisjunction during meiosis?

• Increased chromosome number

• Unchanged chromosome number

• Decreased chromosome number

• Both increased and decreased chromosome numbers

What type of mutation involves the reversal of a chromosome segment?

• Deletion

• Translocation

• Inversion

• Duplication

Which process involves only one round of cell division?

• Meiosis I

• Meiosis II

• Mitosis

• Both Meiosis I and II

What distinguishes mitosis from meiosis?

• Number of divisions

• Type of cells produced

• All of the above

• Genetic variation in the cells