This DNA sequence occurs within the coding sequence of a gene. The first three nucleotides (underlined) code for glutamic acid (Glu).  The following DNA mutation is likely to result in a shorter than normal protein: T -> C at position 80

What is most commonly found in the E site of ribosomes?

During protein synthesis, the tRNA aminoacyl synthetase acts to:    serve as the first initiation factor during ribosome assembly

5’ to 5’ linkages are found in nucleic acids: in tRNAs as a post-transcriptional modification

  You next purify the same protein from another strain, sequence the same portion of the protein, and determine that it has a mutation. The first five amino acids are now:                   Met – Gly – Val – Thr – …… What was the single-base change in the RNA that caused it to encode the new amino acid sequence?

Which of the following statements about nucleotides are true and which are false?    In DNA, the sugar is ribose, while in RNA it is deoxyribose

What type of mutation is it?

7-methyl-guanosine is added to mRNA molecules during a processing reaction in eukaryotes. The unique processing event is a:

Which of the following statements about nucleotides are true and which are false?     Adenine base-pairs with thymine, and guanine base-pairs with cytosine

In partially diploid E. coli cells with the genotype: F’ i+ o- z+ y- a- / chromosome i- o+ z- y+ a+, which functional gene product(s) would be expressed at high level in the absence of both lactose and glucose?    permease