Which is NOT true regarding T4 genome replication and transcription?
a. T4 encodes its own DNA replication complex.
b. The T4 genome exhibits circular permutation, meaning the arrangement of genes differs.
c. The T4 genomes are recombined into a concatemer prior to headful packaging.
d. T4 encodes its own RNA polymerase for transcription of phage genes.
Answer: D
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An adult cell that is reprogrammed to be pluripotent is called a(n):
A. embryonic stem cell. B. induced pluripotent stem cell. C. germ layer pluripotent stem cell. D. pluripotent stem cell. E. regenerative pluripotent stem cell.
If the curve shifts to the left or to the right, there is no gene flow, and the population size consequently increases over successive generations, then which of these is (are) probably occurring?
1. immigration or emigration 2. directional selection 3. adaptation 4. genetic drift 5. disruptive selection A) 1 only B) 4 only C) 2 and 3 D) 4 and 5 E) 1, 2, and 3
Where do transcription regulators usually bind on a DNA double helix?
A. 5' end B. minor groove C. major groove D. single-stranded regions E. 3' end
Which of the following general mechanisms appear to be involved in the formation of cancer cells?
A) inversions, operon formation, methylation B) genomic instability, DNA repair failure, chromatin modifications C) transdetermination, mutation, allosteric interactions D) RNA failure, DNA phosphorylation, phosphorylation of adenyl cyclase E) suppression, tabulation, projection