Genetic variation is ultimately based upon which of the following?
A. Morphological differences
B. Small variations in nucleotide sequence of the DNA
C. Carbohydrate content of the cell
D. Translation
B
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The first peptide hormone discovered in plants was ____, which functions in wound response in the
tomato.
a. cytokinin b. systemin c. gibberellin d. jasmonate e. salicylic acid
Many coenzymes are which type of molecule?
a. lipids b. sugars c. carbohydrates d. vitamins
e. proteinsThe replisome has two main subcomponents. They are
A. the replication fork and the sliding clamp subunit. B. the replication fork and the DNA pol III enzymes. C. the DNA pol III enzymes and the sliding clamp subunits. D. the primosome and the sliding clamp subunit. E. the primosome and the DNA pol III enzymes.
What is the expression pattern of dominant-negative mutations in petite strains of yeast?
A) Expression of wild-type mitochondria is enhanced. B) Mitochondrial membranes become hyperpolarized. C) Expression of mutant mitochondria resembles expression of wild-type mitochondria. D) The function of wild-type mitochondria is suppressed. E) Mitochondria show enhanced capacity of oxidative phosphorylation.