Assertion : Both the father and the mother contribute practically equal amounts of genetic material to the child. Reason : Each trait is influenced by both paternal and maternal DNA. *
1. Both assertion and reason are true and reason is the correct explanation of assertion.
2. Both assertion and reason are true but reason is not the correct explanation of assertion.
3. Assertion is true but reason is false.
4Assertion is false but reason is true.
Answers
Answer:
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Explanation:
Both assertion and reason are true and reason is the correct explanation of assertion.
Answer:
Both assertion and reason are true and reason is the correct explanation of assertion.
Explanation:
In humans, both the male and female parents contribute genetic material equally to the offspring.
By receiving the same number of chromosomes from both parents, this is achieved.
Humans have 23 pairs of chromosomes in their nucleus.
Each human being has one set of sex chromosomes and 23 pairs of autosomes.
The two sex chromosomes in humans are X and Y.
Males have XX chromosomes, while females have XY chromosomes.
The male and female gametes unite during reproduction to form the diploid zygote, which is created during the fertilisation process.
The female parent contributes 22 autosomes and one X or Y chromosome out of the 23 pairs of chromosomes in progeny, and the male parent contributes 22 autosomes and one X chromosome.
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