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What would happen if in a gene encoding a polypeptide of 50 amino acids 25th (UAC) is mutated to UAA?

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Important Questions on Molecular Basis of Inheritance

EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
How does ribosome work in the process of translation?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Explain the mechanism of translation that occurs in the ribosomes in a prokaryote.
HARD
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation

How many peptide bonds will be formed in the polypeptide chain in the given diagram of protein synthesis?

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EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Select the correct match:
HARD
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
The number of nucleotides on the mRNA, ATPs utilised, peptide bonds formed, translocations and ribosomes required to synthesise a polypeptide with 500 Amino acids
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation

The sequence of a double stranded DNA, which produces a pentapeptide is given below:

5'-TACATGATCATTTCACGGAATTTCTAGCATGTA-3'

3'-ATGTACTAGTAAAGTGCCTTAAAGATCGTACAT-5 '

The correct mRNA sequence corresponding to the pentapeptide is

MEDIUM
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Explain briefly the process of translation in prokaryotes.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Identify the correct order of organization of genetic material from largest to smallest :
EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Which of the following RNAs is not required for the synthesis of protein?
EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Choose the correct statements.
A) There are few uncatalyzed metabolic conversions in living system like protein degradation.
B) Study of energy conversion in the living cells is called Bioenergetics.
C) In DNA, each step of nucleotide pair will turn 36°.
D) The first amino acid in a protein chain is called ‘C’ terminal amino acid.
MEDIUM
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Fertilization in humans is practically feasible only if:
EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Which of the following sequences of mRNA are required for the translation process but are not translate?
MEDIUM
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Microtubules are the constituents of:
HARD
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
What do you mean by an Intron or Exon?
MEDIUM
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation

Mitochondria and chloroplast are:

(i) Semi - autonomous organelles

(ii) Formed by the division of pre-existing organelles and they contain DNA but lack protein synthesizing machinery

Which one of the following option is correct?

EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
If you suspect major deficiency of antibodies in a person, to which of the following would you like for confirmation evidence?
EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
Root pressure is usually acidic because:
EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
In Eukaryotes the regulation could be exerted at the following levels, except       
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
An mRNA is transcribed from a DNA segment having the base sequence 3'-TACATGGGTCCG-5'. What will be the correct order of binding of the four amino acyl-t RNA complexes given below during translation of this mRNA?
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EASY
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Translation
The first phase of translation is