The primary structure of a polypeptide is:
A) the three-dimensional structure of the protein
B) the specific linear sequence of amino acids that constitutes the polypeptide chain
C) the nucleotide sequence of the tryptophan tRNA
D) the DNA sequence that encodes the protein
Ans: B) the specific linear sequence of amino acids that constitutes the polypeptide chain
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Fitness is a measure of reproductive success. If an individual with genotype BB produces 6 offspring, and a heterozygous individual (Bb) produces 10 offspring, and a third individual with genotype bb produces 5 offspring, what is the fitness value for the individual with BB genotype?
A. 1.0. B. 0.5. C. 0.6. D. 0.4. E. 1.1
One group of individuals of the same species in a specified area is defined as a(n) ________
a. ecosystem b. population c. morph d. variant
When a person visits the doctor with a bacterial infection, one of the first lab tests on the patient will tell the doctor whether the bacteria are gram-negative or gram-positive. Why is this important information for a doctor to have before deciding on treatment?
What will be an ideal response?
Water flowing over fish gills exchanges gases with blood flowing in the opposite direction inside gill capillaries. This is called __________.
Fill in the blank(s) with the appropriate word(s).