Question

you meet someone with a straight little finger. can you determine their genotype? why or why...

you meet someone with a straight little finger. can you determine their genotype? why or why not?

i need help anwsering because i want to say you can't because youre not sure if the straight little finger is dominant or recessive? but im not too sure. any help would be appreciated
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Answer #1

Straight and bent little finger is controlled by one gene with two alleles with dominant recessive relationship.  In some cases it is observed that the little finger bends towards the ring finger and this is dominant trait. Both homozygous dominant and heterozygous for the gene have bent little finger. The straight finger condition is caused due to homozygous recessive genotype. So the persons with straight little finger have always homozygous recessive genotype for the gene controlling bent / straight little finger trait.

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