During oogenesis,
a. thousands of primary oocytes are formed.
b. one primary oocyte yields 16 mature ova.
c. one primary oocyte yields 1 mature ovum.
d. each ovum contains 46 chromosomes at the time of ovulation.
e. sex hormones reach their lowest levels.
C
You might also like to view...
Which plane divides the body into anterior and posterior portions?
a) frontal b) sagittal c) transverse d) oblique e) midsagittal
Insect flight muscles contract at frequencies much higher than the stimulation rates they receive from the nerves that innervate them. For this reason, they are termed __________ flight muscles
Fill in the blank with the correct word.
The E site of a ribosome is where
A. new amino acids enter the ribosome. B. the polypeptide elongates. C. the tRNA exits the ribosome.
The repolarization of the action potential involves the opening of
A. voltage-gated Na+ channels. B. chemically gated Na+ channels. C. voltage-gated K+ channels. D. chemically gated K+ channels.