How many statements are correct?

a. Codons are always triplet.

b. There are total 64 codons code for amino acids.

c. Codon is read in mRNA in non- contagious fashion.

d. Code is nearly universal.

e. Some amino acids are coded by more than one codon

f. Codon is ambiguous

(1) 5

(2) 2

(3) 3

(4) 4

Subtopic:  Genetic Code: III | Genetic Code |
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Codon is

(1)unambiguous and non specific

(2)non degenerate

(3)unambiguous and degenerate

(4)non universal and non degenerate

Subtopic:  Genetic Code: III | Genetic Code |
 91%
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Which of the following is incorrect option

(1) A change of single base pair in the gene results in the change of amino acid in case sickle cell anemia

(2) In case sickle cell anemia charged amino acid is changed to non polar amino acid

(3) Amino acid residue glutamine is changed to valine

(4) Sickle cell anemia is an example of point mutation

Subtopic:  Genetic Code: II | Genetic Code |
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The change in the reading frame will depend on

(1)no of bases deleted

(2)no of bases added

(3)no of bases deleted or added

(4)always change the reading frame either bases are deleted or added

Subtopic:  Genetic Code: II | Genetic Code |
 71%
From NCERT
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tRNA acts as

(1) adapter RNA

(2) structural RNA

(3) matured RNA

(4) messenger RNA

Subtopic:  Translation |
 89%
From NCERT
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Which is correct about tRNA

1. It has amino acid acceptor end

2. It has codon loop

3. It has 2 strands

4. There are 64 tRNA for 64 codons

Subtopic:  Translation |
 81%
From NCERT
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tRNA looks like

(1) clover-leaf

(2) L shaped

(3) inverted L shaped

(4) a and c

Subtopic:  Translation |
 83%
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The genetic make up of an organism is determined by

(1)sequences of bases in RNA

(2)sequence of bases in DNA

(3)sequences of amino acids in proteins

(4)all of these

Subtopic:  Human Genome Project |
 55%
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HGP(Human Genome Project) gave a new area in biology called as

(1)BioSciences

(2)Bioinformatics

(3)Biochemistry

(4)Biological sciences

Subtopic:  Human Genome Project |
 95%
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Which of the following was not the goal of Human Genome Project

1. Identification of human genes

2. human genome sequence determination

3. store information in databases

4. Improve manpower for data analysis

Subtopic:  Human Genome Project |
 84%
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