Which one of the following steps in translation is not part of the elongation phase?
A. movement of the ribosome three bases closer to the 3' end of the mRNA
B. ejection of an uncharged tRNA from the E site of the ribosome
C. peptide bond formation
D. binding of initiator tRNA to AUG start codon
E. introduction of a charged tRNA into an unoccupied A site of the ribosome
Answer: D
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The confirmed diagnosis that Baby T had Bartter syndrome was based on the use of a method called
____________. A. whole genome analysis D. whole nucleotide analysis B. whole exome analysis E. whole proteome analysis C. whole introme analysis
If cell and tissue differentiation is controlled genetically, how can environmental factors play a role in determining the final phenotype?
What will be an ideal response?
PCR has many uses and advantages. What is one disadvantage of this technology?
a. It is difficult to keep the amplified DNA strands intact. b. PCR works on only some DNA sequences. c. The amplified product is often degraded. d. PCR is a slow and inefficient process. e. PCR is easily contaminated with foreign DNA
Which single physical feature is most often associated with a 47,XXX karyotype?
A. Infertility B. Large breasts C. Female pattern baldness D. Height greater than siblings