Does fertilization create new combinations of alleles?

Answer 1

Yes- each gamete cell is haploid, containing half the mother or father's full set of chromosomes. when the two fuse, then a new diploid cell is created, with a full number of chromosomes- half from the mother and half from the father. It has a new genetic combination- the cells of offspring created via sexual reproduction are not genetically identical to their parents' cells.

Answer 2

Sexual reproduction involves taking some (half) of your DNA and mixing it with another's DNA. This mixing allows for mutations to be passed on, as well as diluted.

In organisms that do not sexually reproduce, the only way for variation, and not clones that have the same defects as the parent, it to recombine DNA. Even so, there isn't a ton of variation.

Variation allows for a defense against an ever-evolving environment. It is a safety in numbers concept.

Answer 3

First, crossing-over and the subsequent rearrangement of alleles on homologous chromosomes leads to gameteswith a new mix of genetic material. Second, when the gametes fuse, new combinations of alleles result.

Answer 4

Yes, fertilization can create new combinations of alleles by bringing together the genetic material from two different parents. This process results in offspring with a unique set of alleles that may not be present in either parent.

Answer 5

Sexual reproduction creates a new combination of alleles.

Answer 6

Only new combinations alleles. Only mutations can give rise to new alleles.

Answer 7

new combinations of alleles

Answer 8

yes