If the product of a functional gene is not a protein, what other product(s) might be encoded by the gene?

A. mRNA, tRNA, and RNA
B. tRNA and mRNA
C. mRNA and rRNA
D. tRNA and rRNA


Answer: D

Biology & Microbiology

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What is the correct order of gene expression in the early Drosophila embryo?  

A.  pair-rule genes, gap genes, segment polarity genes B.  gap genes, pair-rule genes, segment polarity genes C.  gap genes, segment polarity genes, pair-rule genes D.  segment polarity genes, pair-rule genes, gap genes

Biology & Microbiology

Bryophytes are able to actively control their hydration

A. true B. false

Biology & Microbiology

Which statement is true?

a. Blood flows from areas of high hydrostatic pressure in the arterioles to low hydrostatic pressure in the arteries. b. Blood flows from areas of low hydrostatic pressure in the arterioles to high hydrostatic pressure in the arteries. c. Blood flows from areas of high hydrostatic pressure in the arteries to low hydrostatic pressure in the arterioles. d. Blood flows from areas of low hydrostatic pressure in the arteries to high hydrostatic pressure in the arterioles.

Biology & Microbiology

Which of the letters in the genetic code are

most important for the translation of many amino acids?

a. the first one b. the first two c. the last two d. the last one e. all three are equally important for all amino acids

Biology & Microbiology