Which of the following molecules serves the function to express the genetic material by being translated to protein?
A) carbohydrate
B) cholesterol
C) DNA
D) RNA
E) lipid
Answer: D
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Flowering plants emerged
a. during the Devonian. b. between early and late Carboniferous. c. during the latter part of the Permian. d. at the beginning of the Triassic. e. during the late Jurassic or early Cretaceous.
Tightly curled or wooly hair is caused by a dominant gene in humans. If a heterozygous curly-haired person marries a person with straight hair, what percentage of their offspring would be expected to have straight hair?
A) 100% straight B) 50% straight C) 75% straight D) 25% straight E) It is impossible to predict the outcome.
As am embryo develops, different sets of genes are regulated by
a. promoters and operators b. mRNA and lac repressors c. operons and operators d. transcription factors and repressors
Which statement below refers to climate rather than weather?
a. The baseball game was rained out today b. the high temperature this afternoon was 15 degrees c. last evening there was snow in farmington d. I am moving to southern arizona because it is warm and sunny