The disaccharide in the accompanying figure is ____
a. cellulose
b. galactose
c. maltose
d. sucrose
e. lactose
ANSWER: d
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____ is the process where new genes evolve from duplicates of old ones
Fill in the blank with the appropriate word.
The presence of long double-stranded RNA (> 30 bp)
A. indicates infection by an RNA virus other than a retrovirus. B. indicates infection by a virus. C. indicates exposure to mutagens. D. induces synthesis of interferon. E. indicates infection by an RNA virus other than a retrovirus AND induces synthesis of interferon.
Which of the following is true of X chromosome expression in female mammals? a. All genes are expressed
b. Both X chromosomes are activated. c. The Y chromosome is suppressed. d. One X chromosome is inactivated.
The portion of the fundamental niche that an organism actually exploits in the presence of competitors is called its ________ niche
Fill in the blank(s) with correct word