Amoeba Sisters Meiosis

What is the primary purpose of meiosis in organisms?

• To produce identical daughter cells

• To reduce the chromosome number by half

• To increase genetic diversity

• To repair damaged DNA

During which phase of meiosis do homologous chromosomes separate?

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I

Which of the following is a key difference between meiosis and mitosis?

• Meiosis results in four daughter cells, while mitosis results in two

• Meiosis occurs in somatic cells, while mitosis occurs in gametes

• Meiosis involves one division cycle, while mitosis involves two

• Meiosis produces genetically identical cells, while mitosis produces genetically diverse cells

What is the significance of crossing over during meiosis?

• It increases the number of chromosomes

• It ensures the production of identical gametes

• It allows for genetic variation

• It prevents chromosome segregation

Tags

NGSS.HS-LS3-2

In which stage of meiosis does crossing over occur?

• Prophase I

• Metaphase I

• Anaphase I

• Telophase I

How many chromosomes are present in human gametes after meiosis?

• 23

• 46

• 92

• 12

Which structure is responsible for holding homologous chromosomes together during meiosis?

• Centromere

• Synaptonemal complex

• Spindle fibers

• Nuclear envelope

What is the result of nondisjunction during meiosis?

• Normal distribution of chromosomes

• Equal division of cytoplasm

• Abnormal number of chromosomes

• Increased genetic diversity

Which of the following best describes the term 'tetrad' in meiosis?

• A pair of sister chromatids

• A group of four chromatids

• A single chromosome

• A pair of homologous chromosomes

What is the role of spindle fibers during meiosis?

• To replicate DNA

• To separate chromosomes

• To form the nuclear envelope

• To synthesize proteins