If a population of 2000 individuals has 120 aa genotypes, what would the genotype frequency of aa be?
a. 0.006
b. 0.06
c. 0.6
d. 1.6
e. 16
b
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In order for a substance to transfer a phosphate to ADP in a substrate-level phosphorylation reaction, which of the following must be true?
A. The phosphate donor must have a lower oxidation-reduction potential than ATP. B. The phosphate donor must have a higher oxidation-reduction potential than ATP. C. The phosphate donor must have a higher phosphate transfer potential than ATP. D. The phosphate donor must have a lower phosphate transfer potential than ATP.
Most O2 is transported in the blood ____
a. dissolved in the plasma b. as bicarbonate ions c. bound to hemoglobin d. as carbon dioxide e. bound to bicarbonate ions
What is the consequence to a bacterial cell of a mutation that inactivates the enzyme responsible for methylating the A in the DNA sequence 5? GATC?
A) Replication of the lagging strand cannot be completed. B) Thymine dimers cannot be repaired. C) Parental and new DNA strands cannot be distinguished during mismatch repair. D) Expression of certain metabolic genes is decreased. E) The mutation rate of all genes will be lower.
In this figure of teleost internal anatomy, which structure, A, B, C, or D, is the swim bladder?
1.A
2.B
3.C
4.D
