Half a woman's somatic cells express her paternal X chromosome and half express her maternal X chromosome
Indicate whether the statement is true or false
FALSE
Explanation: X-inactivation is random, so the maternal and paternal copies of her X chromosomes will not be inactivated with equal frequency.
You might also like to view...
In glycolysis, which of the following molecules is oxidized to form 1,3-bisphosphoglycerate?
A) 3-phosphoglycerate B) 2-phosphoglycerate C) glyceraldehyde-3-phosphate D) glucose E) glucose-6-phosphate
Urine via catheter is:
a. acceptable. b. not acceptable.
In early experiments to understand the control of the cell cycle, researchers fused HeLa cells that were at different
stages of the cell cycle. What did the results of these experiments suggest?
a. The concentrations of cyclin dependent kinases (Cdks) fluctuate throughout the cell cycle. b. The concentrations of cyclins fluctuate throughout the cell cycle. c. The cell cycle has three checkpoints through which the cell must pass in order to progress through to mitosis. d. Microtubules play an essential role in the progression of the cell cycle. e. Molecules in the cytoplasm control the progression of the cell cycle.
From which generation does the pollen grain develop?
a. from the female gametophyte b. from the female sporophyte c. from the male sporophyte d. from the male gametophyte