Question

Crossing over is one of the most important events in meiosis because?

it produces new combinations of alleles on chromosomes. homologous chromosomes must be separated into different daughter cells. the number of chromosomes allotted to each daughter cell must be halved. homologous chromatids must be separated into different daughter cells. all of these reasons are true.

Answer 1

Crossing over in meiosis produces new combinations of alleles on chromosomes, resulting in genetic variation among offspring.

Step-by-step explanation:

One of the most important events in meiosis is crossing over because it produces new combinations of alleles on chromosomes. During prophase I of meiosis I, homologous chromosomes line up in pairs and exchange genetic material between non-sister chromatids. This results in the creation of recombinant chromosomes with unique combinations of genes from both parents. Therefore, crossing over is essential for generating genetic variation among offspring.

Answer 2

Meiosis is the process of cell duplication into haploid gametes or sex cells. Crossing over is one of the most important events in meiosis because it creates genetic variation in the offspring produced by organisms giving variety in the gametes of both parents. This process is what makes sexual reproduction differ from asexual reproduction.