Chromatids that are attached at the centromere are called ____ chromatids.
A. mother
B. daughter
C. sister
D. programmed
E. either mother or daughter
Answer: C
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A vector is
(a) an organism that causes disease. (b) a disease. (c) a substance that prevents disease. (d) an organism that transmits a disease causing organism.
Trait A is dominant to trait a, and trait B is dominant to trait b. If an AaBB mother mates with an AaBb father, what percentage of the offspring will have the aaBB genotype?
a. 12.5% b. 18.75% c. 25.0% d. 50.0%
Match the motor molecule to its function
A) processive movement toward microtubule plus end B) movement along microtubule toward its minus end C) processive movement toward actin filament plus end D) generates force on actin filaments in a sarcomere E) generates force for sliding of flagellar microtubules 1) cytoplasmic dynein 2) axonemal dynein 3) kinesin 4) myosin V dimer 5) myosin II filament
A zoo in Southern California has been successfully breeding arctic wolves and they want to exchange some of their extra wolves for kangaroos from a zoo in southwestern Australia. Since it is July, it is quite cold in the other zoo compared to Southern California. What discussion might the zookeepers have about transferring the wolves?
A. After growing up in Southern California, the individual wolves have lost their ability to adapt to cold temperatures, but their progeny will still get the cold-adapted genes. B. Although the wolves are genetically adapted to cold weather have not grown their cold weather coats. C. After several generations in Southern California, the wolves have lost their adaptive genes for cold temperatures. D. Since Arctic wolves are well-adapted to cold, this should pose no problems.