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Iteru
2 months ago
11

In this Gizmo, only one crossover is allowed in each segment. In reality, crossovers can occur at almost any point along the chr

omosome. How do the random distribution of chromosomes and crossovers create more variation in the resulting gametes?
Biology
1 answer:
Rainbow [2.3K]2 months ago
5 0

Answer:

Meiosis and Genetic Variation.

Explanation:

During prophase I of meiosis I, homologous chromosomes pair up, and crossing-over may take place. This process involves the swapping of genetic material between non-sister chromatids of homologous chromosomes, leading to fresh gene combinations on each chromosome.

As cells undergo division in meiosis, during anaphase I, homologous chromosomes are randomly allocated, segregating independently of one another, a phenomenon known as independent assortment. This results in gametes with distinct chromosome combinations.

In sexual reproduction, a combination of two gametes results in an offspring. The specific pair from the countless possible gametes is likely determined by chance, representing another factor contributing to genetic variation in the offspring, referred to as random fertilization.

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