Mutant versions of genes that are normally involved in promoting the development of cancer are known as ________
A) oncogenes
B) attenuators
C) tumor suppressors
D) proto-oncogenes
E) malignant genes
Answer: A
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How long does it take a sperm to reach the
oviduct?
a. 3 minutes b. 30 minutes c. 3 hours d. 3 days e. 30 days
A true body cavity completely surrounded by __________ is called a coelom
a. ectoderm b. mesoderm c. endoderm d. exoderm e. mesoglea
Which animal nurses its young, has forward facing eyes, nails on its fingers and toes, and a moist nose?
a. a lemur b. a tarsier c. a bird d. a new world monkey e. a human
Although asexual reproduction is rapid and efficient, its primary limitation is that _____.
A) each cell must divide individually, leaving the process unusable by multicellular organisms B) genetic information cannot be shuffled into new combinations C) mutations to an organism's DNA are much harder to detect and correct D) a large percentage of any group of offspring may have combinations of features that reduce their chances of survival E) it requires two sets of chromosomes