Chromosomes are thread like structures present in the nucleus of the cell. The child will share 50% of the parental or autosomal chromosomes.
What are chromosomes?
Chromosomes are heredity material that are present inside the nucleus of the cell.
During meiosis, half chromosomes from each of the parent cross and combine to form daughter chromosomes.
These chromosomes contain equal number of chromosomes from each parent and make the total number of child's chromosomes.
The child contain half chromosome from its mother and half from its father.
Thus, a child will share half chromosomes from each parent. That will be 50% equal to parents.
Learn more about chromosome, here:
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During fertilization, the encounter of gametes results in the fusion of their nuclei. The nucleus of the egg cell thus formed is therefore a mixture of the two nuclei.
So the parent will only give half of his chromosomes, so the child will have 50% of his chromosomes that resemble each of his parents.
Another factor that must be mentioned is the genetic recombination between the chromosomes that occurs during meiosis of the reproductive cells. Thus, this will give a heterogeneous chromosome resulting from recombination of the two chromosomes of each of its parents, and the child will have a unique combination chromosome but keeping the alleles of both parents.
