Question

question- do you get it?
which of the following is true about crossing over, independent assortment, and random fertilization?
a. all of these
b. they all occur during meiosis.
c. they all produce gametes.
d. they all increase the diversity of potential offspring

Explanation:

• Crossing over: Occurs during meiosis I (prophase I). Homologous chromosomes exchange genetic material, creating new combinations of alleles on chromosomes. This increases genetic diversity.
• Independent assortment: Occurs during meiosis I (metaphase I). Homologous chromosome pairs align randomly at the metaphase plate. The way one pair aligns does not influence how another pair aligns. This leads to a variety of different combinations of chromosomes in gametes, increasing genetic diversity.
• Random fertilization: A sperm (with its unique combination of chromosomes due to meiosis - crossing over and independent assortment) randomly fuses with an egg (also with its unique combination of chromosomes due to meiosis). This random fusion further increases the genetic diversity of the offspring.

Answer:

A. All of these