Freckles (F) are completely dominant over lack of freckles (f).Laura has freckles but Charles does not....
Freckles (F) are completely dominant over lack of freckles (f).Laura has freckles but Charles does not. Their daughter, Elaine, does not have freckles. What is Laura's genotype?
a. heterzygous
b.homozygous dominant
c.homozygous recessive
d. not enough information to tell
Homework Answers
F ( freckles) is dominant over absence of freckles (f).
Laura has freckles, therefore, her genotype can be Ff or FF
charlie does not have freckles ,therefore, his genotype must be ff
Their daughter elaine does not have freckles which means her genotype is ff
In order for elaine to be ff genotype she must recieve one copy of f from father and one from mother laura.
charlie has the genotype ff and can pass on one f allele to his daughter
Therefore genotype of laura should be Ff
Ff x ff
gametes of laura: F and f
gametes of charlie: f
offsprings: Ff ( freckles) and ff ( no freckles)
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