All viruses must use their genome to produce ________, which is then used by the host cell to produce ________
A) DNA; mRNA
B) proteins; mRNA
C) mRNA; proteins
D) DNA; proteins
E) proteins; DNA
Answer: C
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Very high solar energy input; temperature and moisture not limiting; high biomass, high total productivity; many species.
A. desert B. savanna C. taiga D. temperate grassland E. tropical rain forest
Three populations of an organism, each with drastically different external markings, but still members of the same species, would be called _______
A. homologs B. mutants C. communities D. alleles E. morphs
The fact that the earth does not go up in flames in spite of the richness of oxygen in our environment is related to
which of the following concepts?
a. the activation energy needed to break bonds b. the fact that reactants always have less energy than products c. the first law of thermodynamics d. the second law of thermodynamics e. the abundance of water in our atmosphere which inhibits combustion
Short tandem repeats on ____ may be used to determine genetic relationships among male relatives and descendants
a. the Y chromosome b. chromosome 3 c. the X chromosome d. chromosome 8 e. chromosome 20