What process in meiosis involves chromatids exchanging parts?
A. Prophase II
B. Independent assortment
C. Crossing over
D. Mitosis
Answer: C
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Assume that brown eyes (B) are dominant over blue (b); and right-handedness (R) is dominant over left-handedness (r). A brown-eyed, right-handed man marries a blue-eyed, right-handed woman
Their first child is brown-eyed and right-handed, and their second child is blue-eyed and left-handed. What are the genotypes of the parents? What will be an ideal response
All new cells and new life arise only from preexisting cells
a. True b. False Indicate whether the statement is true or false
Unlike the two-neuron chain of autonomic nerve fibers, the axon of a motor neuron is continuous from its origin in the CNS to its ending on skeletal muscle
a. True b. False Indicate whether the statement is true or false
Which factor is inhibitory to digestive functions?
a. acetylcholine b. histamine c. gastrin d. somatostatin e. all are stimulatory