Many human traits, such as our performance on intelligence tests or our susceptibility to heart disease, are ________.
A. determined only by our genes
B. determined solely by environmental factors
C. influenced by both genes and the environment
D. determined by genes in some people and by the environment in other people
C. influenced by both genes and the environment
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Which of the following explains why the human population has so many phenotypic differences?
A. The majority of our genome consists of noncoding DNA. B. The majority of our genome consists of DNA that codes for proteins. C. Recombination allows for new genetic combinations. D. The genes that code for what we look like are more susceptible to mutation than other genes. E. None of the answer options is correct.
You discover a new multicellular organism. The organism has organelles and cell walls composed mainly of cellulose. This new organism could be
A. a plant. B. a bacterium. C. an animal. D. a fungus. E. an archaea.
Conditional alleles result in phenotypic differences in permissive as opposed to restrictive conditions. What do these conditions have in common?
What will be an ideal response?
Which of the following enzymes is responsible for RNA synthesis?
A) DNA polymerase B) ribosome C) reverse transcriptase D) RNA polymerase