6. During translation, the ____ site within the ribosome hold the growing amino acid chain while the ____ site holds the next amino acid to be added to the chain.
A, B
P, A
A, P
B, A
7. RNA contains which bases
adenine, guanine, cytosine, thymine
adenine, guanine, thymine, uracil
adenine, guanine, cytosine, uracil
thymine, adenine, guanine, cytosine, uracil
8. An antibiotic interferes with the ability of the ribosome to move. What affect would exposure to this chemical have on a bacterial cell?
the protein synthesized will be longer than normal
no proteins will be produced
the protein synthesized will be shorter than norma
protein synthesis will be affected
9. A DNA strand with the sequence AACGTAACG is transcribed. What is the sequence of the mRNA molecule synthesized?
TTGCATTGC
UUGCAUUGC
AACGUAACG
AACGTAACG
10. which of these statements is false:
degenerate codons specify the same amino acids
the genetic code in universal
The genetic code is overlapping
the genetic code is triplet
11. What happens to the DNA molecule after Transcription?
it returns to its normal form ready for the next transcription process
it dies
it becomes RNA
nothing
12. how many strands does DNA have?
3
2
1
4
13. Transcription occurs along a .... template forming an mRNA in .... direction.
3' to 5' ; 5' to 3'
3' to 5' ; 3' to 5'
5' to 3' ; 3' to 5'
5' to 3' ; 5' to 3'
14. the first mRNA codon to specify an amino acid is always ("start")
