NEET BIOLOGY

GENETICS AND EVOLUTION

INHERITANCE AND VARIATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why does sexual reproduction produce diverse offspring?
A
The cells of the offspring lack DNA.
B
The offspring all grow at different rates.
C
The offspring have a unique combination of DNA from its parents.
D
The offspring are spores.
Explanation: 

Detailed explanation-1: -Meiosis also produces genetic variation by way of the process of recombination. Later, this variation is increased even further when two gametes unite during fertilization, thereby creating offspring with unique combinations of DNA.

Detailed explanation-2: -Sexual reproduction has the potential to produce tremendous genetic variation in offspring. This variation is due to independent assortment and crossing-over during meiosis, and random union of gametes during fertilization.

Detailed explanation-3: -The product of sexual reproduction are seeds. Seeds produced through fertilization contain genetic material from both parents. As a result, the offspring are not genetically identical to either of the parent plants. This genetic diversity can help them survive if the environment changes.

Detailed explanation-4: -Sexual reproduction is the creation of a new organism by combining the genetic material of two organisms. As both parents contribute half of the new organism’s genetic material, the offspring will have traits of both parents, but will not be exactly like either parent.

Detailed explanation-5: -each child is different because your sperm cells don’t all have the same DNA. And the same goes for your wife’s eggs. Each sperm and each egg has a never before seen combination of DNA. This happens because even though each sperm and egg gets half of the parent’s DNA, they don’t each get the same half.

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