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If you were to compare Dolly the cloned sheep to her genetic mother (A) and then...

If you were to compare Dolly the cloned sheep to her genetic mother (A) and then conduct a similar comparison of two monozygotic twin sheep (B), what differences might be identified between sheep in (A) and between sheep in (B). Be reasonably specific in your answers.

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Answer #1

Dolly was formed by incorporating the diploid nucleus of somatic cell into the egg cell after removing the haploid nucleus of the egg cell.

Monozygotic twins are formed by division of the zygote formed by proper fertilization of male and female gamete leading to the development of two identical embryos.

Dolly will be identical to the mother as it carries the entire genetic map of the mother. No father or gametes are involved, no fertilization and therefore no variation.

Sheep B on the other hand will have the characteristics of both mother and father sheep as they are formed by normal fertilization of two gametes and the division has occurred post-fertilization. The two monozygotic sheep will be identical to each other but not to the mother

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