Why do your chromosomes come in pairs?
a. Because DNA is double-stranded, one member of each chromosome pair carries a strand that is complementary to the strand carried by the other chromosome.
b. Because cell division via mitosis cannot take place without paired chromosomes.
c. Because one member of each pair came from my mother and the other from my father.
d. Because so much genetic information must be carried, all organisms, including humans, need twice as much DNA in order for it all to fit.
Answer: c. Because one member of each pair came from my mother and the other from my father.
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Bioluminescence is:
A. the production and emission of light by organisms B. the capture of moonlight for nocturnal photosynthesis C. the absorption of light by pigments for transfer to chlorophyll a D. the ability to detect and move away from sources of light E. the ability to detect and move toward sources of light
Today, wild ginkgo trees are found only in warm-temperate forests of central China
a. True b. False
Which transport process requires ATP utilization?
a. active transport b. osmosis c. diffusion d. facilitated diffusion e. diffusion through a channel
Which of the following statements about Venus is not true?
What will be an ideal response?