In the breakdown of glucose, a phosphorylated
six-carbon compound is split into two threecarbon
compounds, which are named
a. PGAL.
b. pyruvate.
c. acetyl-CoA.
d. lactate.
e. acetaldehyde.
A
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In mammals, females have two copies of the X chromosome, whereas males have only one copy. Dosage compensation is accomplished in mammals by:
A. females inactivating the X chromosome from the mother in all the cells. B. males inactivating the X chromosome from the father in all the cells. C. females expressing the X-encoded genes at 2 times the level of the male. D. males expressing the X-encoded genes at half the level of the female. E. females possessing a randomly inactivated X chromosome in all cells.
Over 50% of the world's toys are produced in China alone
Indicate whether this statement is true or false.
For chromosomes to be distinguished from each other, they must be
A) actively transcribing all of their genes. B) actively transcribing some of their genes. C) condensed. D) in interphase.
If a daughter expresses an X-linked recessive trait, she inherited the trait from ____.
A. her mother B. her father C. both parents D. neither parent E. her grandmother