How is the equal genetic contribution of male and female parents ensured in the progeny?
Answers
Answer:
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Explanation:
Equal genetic contribution of male and female parents in the progeny is ensured by the equal inheritance of chromosome from each parent. ... Females have 2 X chromosomes and males have a X and Y chromosome. During the process of fertilization, a haploid sperm fuses with a haploid ovum to produce a diploid zygote.
Answer:
Both parents contribute equally to the inheritances of the progeny during sexual reproduction.
Depending on the genes inherited from the parents ,the characters in the progeny are decided.
Each offspring has two sets of genes of which one is paternal and other is maternal one.
The genes are transmitted through parent's chromosomes.
The diploid chromosome number is reduced to haploid by meiotic division at the time of gamete formation.
When haploid germ cell of male and female parents fuse to form zygote during fertilisation.
Zygote is the first cell of the new progeny.
The normal number of chromosomes in the offspring in restored because it receives two copies of each chromosome, one each from the male and female parent through gametes involved in fertilisation.
This ensures the stability of the DNA of the species.