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Nucleic acids and Protein synthesis
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Which statements about mRNA are correct? 1 mRNA can form base pairs. 2 mRNA can form hydrogen bonds. 3 mRNA is double stranded.
1 and 2 only
How many nucleotides does the gene coding for α-globin contain?
429
What is the common component of the three molecules RNA, DNA, and ATP?
C
What is the minimum number of hydrogen bonds between the two strands in a length of DNA containing 500 base pairs?
1000
What is the maximum number of hydrogen bonds between the two strands in a length of DNA containing 700 base pairs?
2100
How many statements are true for semi-conservative replication of DNA in a prokaryotic cell?
1
Which components could be found in nucleotides of rRNA?
1 and 2 only
What is the maximum number of codon-anticodon interactions within one ribosome?
2
What is correct for uracil?
B
?
B
A molecule of transfer RNA (tRNA) has the anticodon sequence UAC. What will be the corresponding nucleotide sequence in the DNA?
TAC
Which row represents the correct features of cytosine?
B
Which row represents the correct features of guanine?
C
?
1,2 and 3
?
G
Which description of a eukaryotic gene is correct?
B
How many hydrogen bonds are holding the two strands of this section of a DNA molecule together?
27
What is the correct mRNA codon coding for the amino acid alanine?
GCA
What is the correct tRNA anticodon coding for the amino acid proline?
GGU
Name 2 stop codons.
UAA, UAG, UGA
What is the start codon?
AUG
?
33
The diagram shows a strand of DNA and mRNA during transcription. GIve the name and numbe of bonds present at point labelled 3.
hydrogen, 3
What is the answer?
2
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