Which is NOT true about the genetic code?
A. It contains start and stop codons as instructions.
B. Each codon consists of three bases.
C. The groundwork for cracking the code began with the use of synthetic RNA.
D. Most amino acids have only one codon.
E. It is composed of triplet codes.
Answer: D
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Which of the following describes the function of epinephrine?
a. It increases heart rate, cardiac muscle contractions, and blood-glucose levels. b. It regulates the concentration of ions in urine, sweat, and saliva. c. It regulates blood-glucose levels. d. It triggers the formation of red blood cells in the bone marrow.
In _______ mimicry, unprotected species resemble others that are distasteful.
A. Müllerian B. competitive C. Batesian D. aposematic
How many HLA haplotypes does each human have?
A. 1 D. 4 B. 2 E. 5 C. 3
When constructing a karyotype, the chromosome images are arranged in pairs according to ____________________ and ____________________.
a. size; telomere location b. size; centromere location c. banding pattern; centromere location d. banding pattern; telomere location e. size; banding pattern