Which method of fragmenting DNA would not be useful for sequencing a genome for the first time?
A) Complete digestion with a restriction enzyme
B) Partial digestion with a restriction enzyme
C) Forcing DNA through a thin needle
D) Exposing DNA to ultrasound energy
A) Complete digestion with a restriction enzyme
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Refer to the figure above. What is the function of the AGU on the loop of the tRNA?
A) It attaches to the amino acid. B) It base pairs with a codon of mRNA. C) It stabilizes the tRNA-amino acid complex. D) It is the active site of this ribozyme.
For a gene with two alternative alleles, A (with a frequency of p) and B (with a frequency of q), the term in the algebraic form of the Hardy-Weinberg equilibrium for the heterozygote genotype frequency is
A. p2. B. q2. C. 2pq. D. (p+q)2. E. 2Aa.
What reproductive structure is used by ascomycetes during sexual reproduction?
a. Mycorrhiza b. Zygospore c. Flagellated sperm d. Basidiocarp e. Ascus
It appears that early Homo sapiens ____
a. interbred with Australopithecus afarensis b. originated in Oregon c. interbred with Neanderthals d. migrated from North America to Africa e. never lived alongside Neanderthals