Which of the following statements about radial glia is true?
a. They degenerate when migration is complete.
b. They differentiate into astrocytes.
c. They retain the ability to produce daughter cells.
d. They differentiate into neurons.
Question 2
The proportion of fast and slow-twitch fibers found in an individual's quadriceps muscle is primarily determined by the
a. individual's diet.
b. number of hours the individual spends each week engaged in anaerobic activity, like weightlifting.
c. the number of ACTN3 genes that person has
d. number of hours the individual spends each week engaged in aerobic activity, like running or cycling.
