Business Studies, asked by Anonymous, 4 months ago

give two reasons for the appearance of variations among the progeny formed by sexual reproduction.

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Answered by KrisGalaxy

Explanation:

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Variations appear among the progeny formed by sexual reproduction due to the following reasons:

(1) Sexual reproduction results in new combinations of genes that are brought together during the formation of gametes by meiotic divisions (I and II). During meiosis-I crossing over takes place. This reshuffling of genes in the gametes increases the chance of variation in offsprings.

(2) The combination of two sets of chromosomes, one set from each parent during zygote formation, leads to variation within a species.

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