Which of the following organisms is a prokaryote?
A. algae
B. archaea
C. fungus
D. protozoa
E. both archaea and protozoa
Answer: B
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Cystic fibrosis (CF) is an autosomal recessive disorder caused by faulty chloride ion channels in cells lining of the lungs and the pancreas. A man and woman, with no CF symptoms, have an unaffected boy and a daughter with CF. The gene responsible for CF is located on:
a. The X-chromosome b. The Y-chromosome c. One of the human chromosomes 1=12
All the genes that exist at a given time for a given population are collectively called
a. the gametes. b. the gene pool. c. the chromosomes. d. the nuclei. e. the population structure.
What is the role of oxygen gas in aerobic
respiration?
a. providing electrons for NADH b. accepting energy from glucose c. accepting electrons from electron transport d. providing kinetic energy for ATP synthase e. donating electrons for electron transport
The _____ protein is active at the G1 checkpoint
What will be an ideal response?