In human females, one of the sex chromosomes is switched off during early development in a
phenomenon called
a. karyotyping.
b. X inactivation.
c. X linkage.
d. crossing over.
e. SRY activation.
B
You might also like to view...
___ refers to chronically high blood pressure -
above ___.
a. Hypertension...140/90 b. Hypertension...120/80 c. Atherosclerosis...140/90 d. Atherosclerosis...120/80 e. Hypertension...160/90
The two major divisions of the vertebrate
nervous system are the a. autonomic and peripheral systems. b. sympathetic and parasympathetic systems. c. cranial and spinal nerves. d. central and peripheral nervous systems. e. brain and spinal cord
A measurement of a microbe is reported as 1 × 10-6 m, also known as
A) centimeters (cm). B) millimeters (mm). C) micrometers (?m). D) nanometers (nm). E) yards.
The lengths of microtubules in various stages of mitosis depend on the balance between the activities of catastrophins, which destabilize microtubules, and microtubule-associated proteins (MAPs), which stabilize them
If you created cells with an increased number of catastrophin molecules, do you predict the length of the mitotic spindle will be longer, shorter, or unchanged, relative to the corresponding stage of mitosis in wild-type cells? What do you predict for a cell with increased numbers of MAPs? Explain your reasoning.