The sex chromosome composition of a person with
Klinefelter syndrome is
a. XXX.
b. XO.
c. XXY.
d. XYY.
e. none of these.
Answer: c
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Which of the following is a reversible post-translational covalent modification?
A. phosphorylation B. acetylation C. disulfide bond formation D. phosphorylation and acetylation E. acetylation and disulfide bond formation
During contraction, muscle fibers will __________ in length but __________ in thickness
Fill in the blank(s) with the appropriate word(s).
Lateral line organs allow:a
invertebrates to detect gravity. b. humans to perform skillful acts with their eyes closed. c. amphibians to detect light. d. fish to detect vibrations in water. e. birds to detect sound waves.
Annelids and arthropods have a(n) dorsal hollow nerve cord
____________________ Indicate whether the statement is true or false.