Autosomal dominant condition occurs when alleles of genes present on chromosomes in the autosomes (somatic) mask the effect of the other allele.
They can produce a light brown kid and the chances of producing this is 50%.
- Light brown color is dominant to black. A light brown male is mated to a black female, producing a black kid.
- For the two to produce a black kid which is in the recessive condition, the male has to be heterozygous for the condition (Bb).
Let light brown be (BB or Bb) and black be (bb)
Parents : B b x b b
Offspring genotype: Bb bb
Ratio: 1 : 1 (50%)
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Answer:
Genetic variation
Explanation:
Genetic variability (diversity) stems from two basic processes: mutation and recombination.
If there were no mutations, all genes would exist in only one form, they would not have alternative forms.
Since phenotypic variability also depends on genetic variability, it is clear that the processes of mutation and recombination contribute to the creation of a large number of different phenotypes.