Which stage of meiosis is characterized by DNA condensation into compact chromosomes?
a. prophase II
b. anaphase I
c. prophase I
d. prometaphase I
e. metaphase I
ANSWER: c
You might also like to view...
All of the following are moved by molecular motors except
A) secretory vesicles. B) cytoskeletal filaments. C) the Golgi complex. D) glucose. E) chloroplasts.
Which of the following is not true of transposons?
A. They are always part of plasmids. B. They can replace damaged DNA. C. They can change pigmentation. D. They can change the genome. E. They can transfer drug resistance.
On a phylogenetic tree, two clades that emerge from the same node are called ____ because they are each other’s
closest relatives.
a. sister clades b. ancestral clades
c. phyla d. families e. cousins
Why are corneal transplants so successful?
a. Corneas of all individuals tend to display the same MHC antigens. b. The corneas of pigs are so similar to those of humans, xenotransplantation is almost always successful. c. Doctors have perfected the technique for transplanting corneas. d. The tissue is not exposed to lymphocytes. e. There are numerous donors of corneas, so the success rate of transplantation is high.