answer the mc question and explain why ?
Eukaryotic initiation of translation is similar to prokaryotes in which of the following ways?
a) There is a formyl group on the initiation methionine
b) Initiation complex forms at the Shine-Dalgarno/AUG translation start site
c) After binding, the ribosome scans the mRNA and begins translation at the first available AUG
d) The initiator methionyl-tRNA interacts with a soluble initiation factor and enters the P-sitedirectly
e) All of these
answer the mc question and explain why ?
Eukaryotic initiation of translation is similar to prokaryotes in which of the following ways?
a) There is a formyl group on the initiation methionine
b) Initiation complex forms at the Shine-Dalgarno/AUG translation start site
c) After binding, the ribosome scans the mRNA and begins translation at the first available AUG
d) The initiator methionyl-tRNA interacts with a soluble initiation factor and enters the P-sitedirectly
e) All of these
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Please please please I reallly need help with the following 5 questions.
Question 1
Which of the following is responsible for directing the prokaryotic ribosome to the +1 start site:
| a. | the 3' UTR | |
| b. | the AUG codon | |
| c. | Kozak sequence | |
| d. | Okasaki fragment | |
| e. | Shine Dalgarno sequence |
Question 2
In translation, mRNAs are READ in the:
| a. | 5' to 3' direction and polypeptide chains are synthesized amino to the carboxyl ends | |
| b. | 5' to 3' direction and polypeptide chains are synthesized carboxyl to the amino ends | |
| c. | 3' to 5' direction and polypeptide chains are synthesized carboxyl to the amino ends | |
| d. | 3' to 5' direction and polypeptide chains are synthesized amino to the carboxyl ends |
Question 3
Which of the following terms describes a tRNA to which an amino acid has been added:
| a. | charged tRNA | |
| b. | activated tRNA | |
| c. | stimulated tRNA | |
| d. | hydrolyzed tRNA |
Question 4
The ability of some tRNA to recognize more than one codon in mRNA is explained by which of the following:
| a. | a reading frameshift | |
| b. | a reading mistake | |
| c. | Redundancy Theory | |
| d. | Wobble Hypothesis |
Question 5
One essential component in eukaryotic mRNAs recognized by translation initiation factors is the
| a. | TATA box | |
| b. | AUG initiation codon | |
| c. | 7-methylguanosine cap | |
| d. | Shine-Dalgarno sequence |
Match the following:
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