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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?

All of their children are expected to be heterozygous for the trait (Tt), which means they would be tall (dominant phenotype). The recessive trait for being short would only manifest if both copies of the gene were recessive.


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.


A man who has dystonia marries a woman who doesn't one of their children has the condition what are the possible genotypes of the man and woman?

If the man has dystonia and the woman does not, the man would have a genotype of heterozygous for the mutation (Dd) while the woman would have a genotype of homozygous normal (dd). The possible genotypes for their child would be Dd (heterozygous carrier) or dd (homozygous normal).


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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?

50% of their children are expected to have a widow's peak. When a heterozygous male (Ww) with a widow's peak gene marries a female with a straight hairline (ww), their offspring have a 50% chance of inheriting the widow's peak gene from the father.


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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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


Who marries Sally?

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