What is the coefficient of coincidence in this region?
In Drosophila, the genes y, f, and v are all X-linked. Females who are homozygous for recessive alleles of all three genes (y f v / y f v) are crossed to wild-type males. The resulting trihybrid F1 females are testcrossed. The F2 are distributed as follows:
A) 0
B) 0.2
C) 0.4
D) 0.6
E) 0.8
C) 0.4
You might also like to view...
Earthworms, grasshoppers, and birds all have an expanded region of the gut associated with the temporary storage of food, which is called the _____
A) gastric cecae B) larynx C) crop D) pharynx E) epiglottis
The cellular fragments in the blood that function in blood clotting are
a. erythrocytes. b. leukocytes. c. platelets. d. none of the above.
As used in mice, if this new technique is approved for use in humans, which of the following would be injected?
a. Neither mRNA nor antibodies b. mRNA c. Antibodies
Molecular genetic evidence that certain genes shared by both humans and fruit flies initiate eye development in both species suggest a common
A) complete genome. B) use of ATP in energy-transfer reactions. C) genetic toolkit for development. D) homunculi. E) duration of pregnancy.