Which of the following statements regarding transcription only apply to prokaryotes and not to eukaryotes?
A. A region of the promoter about 30 nucleotides upstream of +1 contains AT-rich base pairs.
B. The RNA start site is designated +1.
C. A region of the promoter about 10 nucleotides upstream of +1 contains AT-rich base pairs.
D. Important sequence elements are frequently found downstream of +1.
E. All of the choices given apply to eukaryotes.
C
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In the figure, at the arrow marked II, what enzyme(s) are being utilized?
A) reverse transcriptase B) viral DNA polymerase C) host cell DNA polymerase D) host cell RNA polymerase E) host cell DNA and RNA polymerases
A zygote initially divides into smaller cells, each called a
A. blastomere. B. gastrula. C. neurula. D. cleavage cell. E. embryonic cell.
In gene therapy, what is transferred into an
individual’s body cells?
a. new genomes b. recombinant DNA c. GMOs d. bacterial plasmids e. DNA libraries
Why might Neanderthals have been more affected by changes in food sources that H. Sapiens?
a. Neanderthals were primarily meat eaters. b. Neanderthals had no ability to store food. c. Neanderthals had no tools with which to process food. d. Neanderthals could digest a limited number of proteins. e. Neanderthals required a greater number of essential amino acids.