NEET BIOLOGY

REPRODUCTION

REPRODUCTION IN ORGANISMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cloning results in two organisms that are
A
both adult mammals
B
produced from cuttings
C
genetically similar
D
genetically identical
Explanation: 

Detailed explanation-1: -Reproductive cloning is defined as the deliberate production of genetically identical individuals. Each newly produced individual is a clone of the original. Monozygotic (identical) twins are natural clones.

Detailed explanation-2: -Asexual reproduction involves one parent and produces offspring that are genetically identical to each other and to the parent. Sexual reproduction involves two parents and produces offspring that are genetically unique.

Detailed explanation-3: -Somatic Cell Nuclear Transfer Somatic cell nuclear transfer (SCNT), also called nuclear transfer, uses a different approach than artificial embryo twinning, but it produces the same result: an exact genetic copy, or clone, of an individual. This was the method used to create Dolly the Sheep.

Detailed explanation-4: –Yes, a clone is genetically identical to both of its parents (the donor of the nucleus, and the donor of the cell in which it grew).

Detailed explanation-5: -Then the embryo is implanted into an adult female’s uterus to grow. In 1996, Scottish scientists cloned the first animal, a sheep they named Dolly. She was cloned using an udder cell taken from an adult sheep. Since then, scientists have cloned cows, cats, deer, horses, and rabbits.

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