molecular genetics

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Transcript molecular genetics

Punnett squares can be used to predict the probability of:
a) being exposed to a contagious disease and contracting it
b) having an inherited disease or a genetically determined physical trait
c) both of the above
Punnett squares are used by geneticists to determine the probability of different offspring
genotypes. In the one shown below, what letter(s) belong in the lower right box?
If a woman is homozygous normal and her husband is heterozygous for a genetically
inherited recessive disease and they decide to become parents, what is the probability
that they will have a healthy child?
If two parents are heterozygous for a genetically inherited dominant trait, what is the
probability that they will have a child together who has this trait in his or her phenotype?
How?
http://learn.genetics.utah.edu/content/molec
ules/builddna/
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http://learn.genetics.utah.edu/content/molec
ules/transcribe/: