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WorksheetsGenetic Code
Total questions: 6
Worksheet time: 3mins
Name
Class
Date
1.
Genetic Code is discovered by
a)
Marshall W. Nirenberg and Har Gobind Khorana
b)
Rosalind Franklin and Linus Pauling
c)
James Watson and Francis Crick
d)
Charles Darwin and Gregor Mendel
2.
Codon consists of how many nucleotides
a)
3
b)
5
c)
6
d)
4
3.
how many codons are there in genetic code
a)
50
b)
70
c)
64
d)
61
4.
how many codons do not code for amino acids
a)
5
b)
10
c)
3
d)
1
5.
What are the special codons?
a)
Stop codons (UAA, UAG) only
b)
Start codon (AUG) only
c)
Start codon (AUG) and termination codon (TAA)
d)
Start codon (AUG) and stop codons (UAA, UAG, UGA).
6.
What is an ambiguous codon?
a)
A codon that specifies a single amino acid.
b)
A codon that only occurs in prokaryotes.
c)
A codon that can specify more than one amino acid.
d)
A codon that is not recognized by any tRNA.
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