Question

compared to the number of chromosomes contained in a body cell, how many chromosomes would normally be contained in a gamete?
half as many
one - fourth as many
the same number
twice as many

in which phase of meiosis would certain gene segments of the homologous pairs of chromosomes crossover and exchange genetic information?
prophase i
metaphase i
telophase i
anaphase i

which cells are not formed during meiosis? *
gametes
sex cells
somatic cells

Explanation:

• First question: Gametes are formed through meiosis. Meiosis reduces the chromosome number by half. Body cells (somatic cells) are diploid (\(2n\)), and gametes are haploid (\(n\)). So gametes have half as many chromosomes as body cells.
• Second question: In Prophase I of meiosis, homologous chromosomes pair up (synapsis) and exchange genetic material through a process called crossing - over (crossover).
• Third question: Meiosis is the process that forms gametes (sex cells). Somatic cells are formed through mitosis, not meiosis.

Answer:

• First question: half as many
• Second question: Prophase I
• Third question: Somatic cells