Which of the following is responsible for retrograde axonal transport?
A) cytoplasmic dynein
B) kinesin 5
C) kinesin 13
D) myosin V
E) kinesin 1
Answer: A
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All of the microtubules are the same length, and homologous chromosomes are aligned midway between the spindle
poles at ____. a. telophase I b. metaphase I c. anaphase I d. metaphase II e. anaphase II
If the ciliary muscle of the eye is damaged, then
a. color vision will be lost. b. the amount of light entering the eye cannot be regulated. c. proper focusing will be impossible. d. only peripheral vision is available. e. "night blindness" will become more evident.
An advantage of chorionic villus sampling (compared with amniocentesis) is that:a
chorionic villus sampling detects a much wider range of genetic defects than does amniocentesis. b. chorionic villus sampling is much less expensive than is amniocentesis. c. chorionic villus sampling is much less invasive than amniocentesis. d. chorionic villus sampling is much easier to perform than amniocentesis. e. chorionic villus sampling can be performed much earlier than can amniocentesis.
The ________ definition of species says that a species is a group of organisms that are reproductively isolated from other such groups.
Fill in the blank(s) with the appropriate word(s).