Which of the following is TRUE of melanosomes?
a. All people have about the same number of
melanosomes.
b. The color of the melanosome dictates skin color.
c. Excess sunlight decreases melanin.
d. White Europeans lack melanosomes.
e. All of these are true.
Answer: a
You might also like to view...
What are cadherins?
What will be an ideal response?
Sperm swim from __________ to __________ for
fertilization. a. B; A b. D; C c. D; E d. C; D e. E; C
Which description of skeletal muscle is correct?
a. Each cell contains one nucleus. b. The fibers and filaments are arranged in parallel. c. Sarcomeres work in opposite directions during contraction. d. Actin power strokes produce the contraction. e. The thin filaments are situated in the middle of each sarcomere.
Egg whites consist primarily of water and the protein albumin. When you fry an egg, why does the egg white turn from clear to white?
A. The protein becomes dissociated. B. The protein becomes denatured. C. The protein acquires tertiary structure. D. The protein becomes dehydrated.