Which types of phenotypic ratios are likely to occur in crosses when dealing with two gene pairs for which all the genotypic combinations are of equal viability?
A) 9:3:3:1 B) 2:3, 1:2 C) 6:6:2 D) 12:2:2 E) 1:2:1, 3:1
Answer: A
You might also like to view...
Disruptive selection occurs when
a. the environment controls which organisms will survive. b. humans determine which organisms will survive. c. the extremes of the population have a lesser chance to survive. d. the extremes of the population have a better chance to survive. e. the organisms on one extreme of the population have a better chance to survive than those on the other extreme.
Which type of lung cancer is the most aggressive form?
a. beta cell carcinoma b. squamous cell carcinoma c. large-cell carcinoma d. adenocarcinoma e. small-cell carcinoma
Which is NOT a correct association?
Select one: a. adhesion junctions—skin b. adhesion junctions—bladder c. gap junctions—stomach d. tight junctions—intestines e. tight junctions—bladder
Chickenpox is caused by a poxvirus.
Answer the following statement true (T) or false (F)