In sexual reproduction, a line of genes on DNA chain from a mother is paired with a mathing chain from the?

Question

father. In a baby that developes from the two gene contributors, the pairs of traits on its DNA will

A. no longer be related to those of the parents.

B. result from recombining traits from the mother and father

C. result from recombining the male traits around the female traits

D. be result of random matching errors

Answer 1

Answer: B

Sexual reproduction by definition is the combining of traits from a "male" cell and a "female" cell giving the offspring a combination of traits from the male and female.

The two inherited chromosomes (1 long DNA with the associated histone and non-histone chromosomal proteins) are contain complementary, but not necessarily identical genes, what this means is that at both chromosomes carry the gene for say eye-color, they may be identical if both code for brown eyes or non-identical if say one codes for brown and one for blue, in that cases the dominant trait is usually expressed.

Some genes, ie mitchondrial DNA, is inherited ONLY from the mother

Answer 2

B, pretty much, except that if either the male or female trait is recessive, the other partner's trait will be expressed, so in some cases, they will have individual characteristics of each parent.

Answer 3

I don't like the way this question and its answers are worded, but B is the best answer.