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What is point mutation? Give an example.

Important Questions on Molecular Basis of Inheritance

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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
In Escherichia coli, how many codons codes for the standard amino-acids?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
The mechanism that causes a gene to move from one linkage group to another is called:
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
In an In-vitro translation experiment, poly (UC) RNA template produced poly (Ser-Leu), while poly (AG) RNA template produced poly (Arg-Glu) polypeptide. Which ONE of the following options represents correct interpretations of the codons assignments for Ser, Leu, Arg and Glu?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
If DNA codons are ATG GAA, insertion of thymine after the first codon results in:
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
What is point mutation? Describe it with the example.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
In a random DNA sequence, what is the lowest frequency of encountering a stop codon?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
Which one of the following is the start codon?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
What is point mutation? Give an example.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
What is point mutation? 
HARD
Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
A new life form discovered on a distant planet has a genetic code consisting of five unique nucleotides and only one stop codon. If each codon has four bases, what is the maximum number of unique amino acids this life form can use?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
What is mutation?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
If molecular weight of a polypeptide is 15.3 kDa, what would be the minimum number of nucleotides in the mRNA that codes for this polypeptide? Assume that molecular weight of each amino acid is 90 Da.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
Under which of the following conditions will there be no change in the reading frame of the following mRNA?
5’AACAGCGGUGCUAUU 3’
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
There are 1998 bases in RNA that codes 666 amino acids and the base position at 901 is deleted such that the length of the RNA becomes 1997 bases. The number of codons altered are
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
Which of the following types of RNA carries amino acids towards ribosome during translation?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
Virulent forms of the bacterium staphylococcus aureus is a human pathogen, some strains of which cause “flesh-eating disease”. Earlier the antibiotic Penicillin was used to control this pathogen. After some years Penicillin was ineffective. Hence, a powerful antibiotic-Methicillin was used in treatments. Subsequently, Methicillin also became ineffective and the strains showed resistance to multiple antibiotics also called “multi-drug resistance”. Which one of the following statements regarding the development of multi-drug resistance is correct?
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
What is meant by point mutation? Give one example.
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Biology>Genetics and Evolution>Molecular Basis of Inheritance>Genetic Code and Gene Mutations
Select the incorrect statement on Mutations ?