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Genetics is the branch of biology that deals with the transmission and variation of inherited characteristics.

1 vote

Using punnett squares to express sex/gene linkage and recombination frequency

| X1X1 X1X2 .45 | .405 .045 | X2 | X1X2 X2X2 .05 | .045 .005 | Y | X1 Y X2 Y .5 | .45 .05 (You may note that this situation roughly depicts the population genetics
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1 vote
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gene mutation occurs on two strands of DNA or just one strand?

A "mutation" is a permanent alteration of the genetic composition of an individual. To obey this definition, a base change in one strand must be accompanied by a corresponding change in the opposite s …
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0 votes

Cystic Fibrosis Genetic Risk Determination

I have seen that even some teachers of genetics were puzzled when seeing the correct answer (2/3). …
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5 votes

What is neutral theory of evolution?

Your question would deserve a long essay. R.C. Lewontin wrote a book ("The genetic basis of evolutionary change" - Columbia U.P) on this subject in 1974, right after the neutral theory had been explic …
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0 votes

Why is sickle cell trait expressed in half of all cells rather than all cells containing hal...

"The sickle cell trait" affects people who are homozygous for the HbS allele. These individuals only have hemoglobin S (after all fetal and embryonic hemoglobin genes are switched off). Hemoglobin S f …
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