Which cell cycle checkpoint occurs between metaphase and anaphase to check for proper spindle attachement to the chromosomes?
A) G2 check point
B) G1 check point
C) mitotic checkpoint
Answer: C) mitotic checkpoint
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Acidic chyme splashes into the esophagus, causing a burning pain commonly called heartburn or acid indigestion. This happens when:
a. excess gastrin is present in the blood. b. a sphincter does not close properly. c. the stomach is full. d. the chyme is too acidic. e. cells lining the esophagus release acid.
Sexual selection occurs when a female chooses a male that _____
a. shares all resources b. is migratory c. shows superior strength d. can be a chameleon e. has never had a mate
Match the cause with the disorder.
A. albinism B. Down syndrome C. red-green color blindness D. hemophilia A E. Turner syndrome
What type of receptor is involved in reflex actions that maintain muscle tone and, thereby, the body's equilibrium and posture?
A. cutaneous receptors B. proprioceptors C. nociceptors D. chemoreceptors E. pain receptors