Questions regarding the expression of genetic inheritance in the form of diagrams, including but not limited to questions about drawing and interpreting Punnett Squares, Pedigree Diagrams and genetic cross diagrams. Please include images where possible.

learn more… | top users | synonyms

0
votes
1answer
25 views

How to recognise the type of allele by pedigree analysis diagrams?

It was said that this interference pattern is due to dominant allele. I fail to see that. In general how to recognise the type of allele by pedigree analysis diagrams?
0
votes
1answer
40 views

A diagram of a crossover [closed]

How can one draw a crossover between ABK and aBk where genes A and B follow the Mendel's law of independent assortment and gene K does not i.e. K is linked to B?
3
votes
2answers
292 views

Assessing probability from a pedigree

This isn't exactly homework but I'd like to treat it as such. I'm asked to find the probability that both (III: 2) and (III: 3) are carriers given that (II: 7) and (III: 1) exhibited the recessive ...
7
votes
1answer
94 views

is it possible to completely reconstruct a family tree by DNA comparison alone?

Having DNA samples of all or almost all members of a population of, say, a few hundred or thousand individuals, is it possible to draw the entire family tree of those individuals? (Let's not assume ...
4
votes
1answer
18k views

Pedigree Probability of Autosomal Recessive Trait

Here is a pedigree: The trait is autosomal recessive. The question is: What is the probability that the bottom 2 people (4 and 5) have a child with the trait? I tried doing ...
5
votes
1answer
733 views

Genetic carrier Pedigree of Recessive Traits

A human male and female couple with normal colored ears discover that, in both of their families, their fathers (who have normal ears) each had siblings with red ears. Red ears is a rare autosomal ...