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A variation of a gene is called and allele. Different alleles are caused by mutations.
Asexual reproduction impacts genetic variation by limiting future genetic change to mutations only; sexual reproduction allows future generation to mix in a nearly infinite range of phenotypes (external appearance).
The answer is sexual reproduction
The two main sources of genetic variation are sexual reproduction, and mutation. Sexual reproduction is more common.
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When alleles are recombined during sexual reproduction, they can produce dramatically different phenotypes. Thus, sexual reproduction is a major source of variation within many population.
Sexual reproduction creates a new combination of alleles.
Crossing over during prophase I of meiosis.
what determines an organism's alles in sexual reproduction
new combinations of alleles
new combinations of alleles
Organisms inherit their alleles from their parents. In sexual reproduction, the alleles are usually inherited from two parents. In asexual reproduction, the alleles are inherited from a single cell and are genetically identical to the parent.
By sexual reproduction the parental alleles through gametes are inherited in the subsequent generation
Genes are transmitted during sexual and asexual reproduction.
A fertilized egg has a mixture of alleles from the two parents.
A fertilized egg has a mixture of alleles from the two parents.
Alleles come in pairs. Organisms inherit one allele from each parent organism with sexual reproduction. If the alleles are the same, they could be said to be pure alleles. The science term is monozygous.