Mendel would not have seen four different
phenotypes in the F2 generation of his dihybrid
crosses if
a. the genes were on the same chromosomes.
b. the P1 generation was homozygous.
c. purple was dominant to white.
d. more than two traits were traced.
e. all of these are true.
Answer: a
You might also like to view...
How do we describe transformation in bacteria?
A) the creation of a strand of DNA from an RNA molecule B) the creation of a strand of RNA from a DNA molecule C) the infection of cells by a phage DNA molecule D) semiconservative replication of DNA E) assimilation of external DNA into a cell
A(n) _____ disease has only recently been detected in humans, or has recently expanded its range
a. emerging b. epidemic c. pandemic d. sporadic e. plague
In a reptile egg, which membrane is analogous to a lung?
A) Amnion B) Allantois C) Yolk sac D) Blastocyst E) Chorion
Which of the following best describes the tree of life as currently understood from analysis of DNA sequence data?
a. The tree of life consists of three domains: Bacteria, Archaea, and Eukarya. b. The base of the tree of life is still uncertain because the molecular clock is not accurate for evolutionary events that occurred that long ago. c. The tree of life consists of three domains—Bacteria, Archaea, and Eukarya—and there was substantial horizontal gene transfer between different organisms during the early history of life. d. The domain Archaea is known to be the first branch; domains Bacteria and Eukarya are more closely related to each other. e. There was substantial horizontal gene transfer between different organisms during the early history of life.