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What is base pair substitutions and its type?

Important Questions on Nucleic Acids and Protein Synthesis

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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations

Write note on point or gene mutation.

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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Differentiate between point mutation and frameshift mutation.
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations

Give one significant difference between the following:

Transition and transversion

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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Justify the statement: Silent mutations are evolutionarily neutral.
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
A nucleotide change in the DNA that result in an amino acid change in the protein is “silent” mutation.
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Frameshift insertion or deletion mutations proves that
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

HARD
Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Which of the following is not atavistic in humans?
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
The point mutation sequence for transition, transition, transversion and transversion in DNA are
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Which of the following types of mutation have been categorised based on their effect on translation?
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Point mutation involves change in double base pair
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
What is effect of silent mutation?
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
A segment of DNA has the triplet base sequence, AAC GAC AGC CGC ACA AAA. Due to mutation the first base only got deleted. The likely effect of this on the coding of the DNA segments is that
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Mention one utility of silent mutation in research.
HARD
Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations

A DNA sequence undergoes three subsequent point mutations which result in subsequent changes in transcription of mRNA as shown below:
Original mRNA  :AUG  CAU  CUC  ACG  GAU  UAG

Point mutation 1 : AUG CAU CUU ACG GUA UAG

Point mutation 2 : AUG CAU GCU UAC GGU AUA

Point mutation 3 : AUG CAU GCU UAA GGU AUA

Select the correct sequence of point mutations that occurred in the DNA.

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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Changing the codon AGC to AGA represents
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Write the sequence of nucleotides after single base insertion and deletion in the given gene. Gene: THE CAT ATE THE FAT RAT.
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Cotyledons are also called-
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
Frameshift mutation occurs when
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Biology>Genetics and Evolution P1>Nucleic Acids and Protein Synthesis>Gene Mutations
What is the difference between missense and nonsense mutation?