Karyotype analyses are performed on cells in ____ of mitosis
a. prophase
b. prometaphase
c. metaphase
d. anaphase
e. telophase
ANSWER: c
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An enzyme is active in the stomach of an animal but quickly loses its activity when it leaves the stomach. This example illustrates that enzymes are
A) specific to the organs in which they are produced. B) inactivated by movement. C) sensitive to changes in pH. D) digested in the small intestine. E) consumed by the quantities of substrate in the small intestine.
What is one type of cell that contains half the genetic information of an individual?
A) zygote B) gonad C) sperm D) fertilized egg
A biologist wants to test the effectiveness of a new food additive on causing growth in mice. An effective control group is one that:
A. was fed the same ration without the food additive B. ate a higher concentration of food additive C. was kept in different conditions across the city D. ate a lower concentration of the food additive
Define "cultural transmission" in one sentence
What will be an ideal response?