Describe protein synthesis in terms of initiation, elongation, and termination/release
What will be an ideal response?
Answer: Answers should describe Figure 4.36 in the textbook where initiation involves a complex formation of the ribosome, initiation proteins, formylmethionine-tRNA, GTP, and mRNA. Elongation uses elongation factors, GTP, and tRNAs to extend a peptide, and termination occurs when release factors are recruited to a nonsense codon that breaks apart the tRNA and polypeptide to release the newly synthesized protein.
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For bacteriophages and animal viruses ________ is the step in the viral life cycle that determines host cell or tissue specificity
A) attachment B) penetration C) synthesis D) assembly
Why are antibodies important to immunity?
What will be an ideal response?
A simple metabolic pathway is shown below. A mutation results in a defective enzyme A. Which of the following would be a consequence of that mutation?
A. an accumulation of B and no production of A and C B. an accumulation of B and C and no production of A C. an accumulation of C and no production of A and B D. an accumulation of A and B and no production of C E. an accumulation of A and no production of B and C
Adel has freckles, autosomal dominant. What is her genotype?
A) ff B) FF C) Ff D) Can't say for certain; it could be FF or Ff.