Which of the following is the proper sequence of events in gene expression?
A) DNA ? mRNA ? protein B) DNA ? protein ? mRNA
C) protein ? DNA ? mRNA D) mRNA ? DNA ? protein
Answer: A
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When Mendel crossed two plants that were heterozygous for a single trait, what was the genotypic ratio of their offspring?
A. 1:2:1 B. 9:3:3:1 C. 3:1 D. 1:1 E. Varied depending on the trait
Resource consumption tends to ____ with economic and industrial development
a. remain balanced b. decrease c. remain stable d. rise e. keep pace
A major evolutionary trend among plants is
What will be an ideal response?
Application of heat to living cells can result in all of the following EXCEPT
A) breaking of hydrogen bonds. B) alteration of membrane permeability. C) denaturation of enzymes. D) decreased thermal death time. E) damage to nucleic acids.