Which of the following defines the essential gene set of an organism such as a species of yeast?
A) genes that, when mutated, reduce the growth of a heterozygous organism
B) genes whose deletion alleles are not found among haploid offspring
C) the fewest genes that, when mutated, result in slow growth in optimal environments
D) genes whose mutations result in haploinsufficiency
E) genes that, when mutated, are either lethal or conditionally lethal in special environments
B
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To increase the rate of a reaction you could:
A. Add more products. B. Decrease the temperature. C. Add more reactants. D. remove a catlyst
Humans and chimps look and behave differently due to differences in ________ rather than in genome sequence.
A) gene expression B) genetic mutation C) phenotypes D) mtDNA
A "mini-gene" has the base sequence TACCCGTGCACG. If the T at the beginning of the sequence is deleted, what will be the consequence?
A) All of the codons after that point will be changed. B) RNA polymerase will skip that codon, but all the others will be read normally. C) Only the amino acid coded for in that codon will be changed. D) RNA polymerase will correct the deletion, and a normal protein will be produced. E) The first nucleotide is always replaced anyway, so there will be no change.
Pasteur's experiments on fermentation laid the foundation for
A) industrial microbiology. B) epidemiology. C) immunology. D) abiogenesis. E) antisepsis.