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Q: If a man is heterozygous for tongue rolling and he marries a woman who is homozygous for tongue rolling what is the probability (express as a percent) that they will have a child that can roll their t?
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If Tall is dominant over short a homozygous dominant man marries a homozygous recessive woman what of their children are expected to be short?

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A male who has normal vision marries a female who is a carrier for colorblindness can they have a colorblind daughter?

Assuming that the man who has normal vision is homozygous for normal vision, the couple's daughter will either be homozygous for normal vision or heterozygous (normal vision but carrier for color blindness) for normal vision. In light of this, the couple's daughter will not be color blind.


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In humans widow's peak (W) is dominant over straight hairline (w). If a heterozygous male marries a female with a straight hairline what percent of their children can be expected to have widow's peak?

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What does genotypic ratio mean?

genotype means genetic make up. it can give the information about the parents wether they were homozygous or heterzygousAnswer (Improved)A genotypic ratio is the proportion of genotypes found in individuals after a cross. For example, consider a cross between two heterozygous individuals for trait A: Aa X AaThe result is a 1:2:1 ratio for the genotypes AA, Aa, and AA respectively. Put another way, if the parents had 100 offspring, 25 would be expected to have the genotype AA, 50 the genotype Aa and 25 the genotype AA.This is hard Good Luck


Can A homozygous A blood marries a woman with AB blood what blood type will the children have?

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A man with blood type o marries a blood type ab what are their childrens probability in blood types?

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A man homozygous for the perfect pitch trait marries a women without perfect pitch What is the probability that any of their three children will NOT have perfect pitch?

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A recessive allele t is responsible for a condition called distonia a man who has this condition marries a woman who doesnt one of their four children has the conditon what are the pssible genotypes?

Firstly, if the condition is recessive, both the man and the child with the condition must have the genotype tt. The mother must have the genotype Tt. This is because if she had TT, all of the children would be Tt and not have the condition. If she were tt, she would have the condition as well. Therefore if the father has tt and the mother has Tt, the other 3 children who do not have the condition must all have the genotype Tt. So: Mother - Tt Father - tt Affected child - tt Other children - Tt


A man heterozygous for blood type A marries a woman heterozygous for blood type B The chance that their first child will have type O blood?

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