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Sheryl is observing ovarian slides taken from a female ape. All the cells show crossover chromosomes. What is this stage?

ОА
meiotic prophasel
ОВ.
meiotic prophase II
Ос.
meiotic metaphase

User TravMatth
by
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1 Answer

6 votes

Answer:

meiotic prophasel

Step-by-step explanation:

Crossing-over is a unique phenomenon that only occurs during meiotic division or gamete formation. It is the process whereby non-sister chromatids of homologous chromosomes exchange a portion of the their chromosome.

Crossing-over occurs specifically in the Prophase 1 stage of meiosis, where homologous chromosomes lie side by side to form a TETRAD structure and exchange their chromosomal segment. Crossing-over aims at promoting genetic diversity among sexually-reproducing organisms.

Therefore, an ovarian slide observed to show crossing-over occurs at the Prophase I stage of meiosis 1.

User Bricca
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