DNA substitution mutation can occur in two ways that are transition and transversion. Transversion can be best defined as a point mutation that occurs where the interchange of one or two rings takes place between the pyrimidine and purines. Interchange of bases can occur in a double-ring structure with a single-ring structure or a single-ring structure with a double-ring structure.

Permanent and inheritable change in the genetic material of cell

Temporary change in the genetic material of the cell

Any change in the cytoplasm of cell

Mutations are the sudden inheritable and irreversible changes in the genetic makeup of an individual. Any chemical, physical agent, ionising radiations or such substances that can cause mutations are called mutagens.

EASY

Earn 100

Define transversion.

Important Questions on Principles of Inheritance and Variation

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

Select the incorrect statement on Mutations ?

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

The movement of a gene from one linkage group to another is called:

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

The mutation of a purine to a pyrimidine is known as

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

Explain the type of gene mutation in the DNA sequence given below.

ATGCATGC $\to$ ATGAATGC

HARD

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

Match the following lists:

	List $I$		List $II$
A)	Change in single base pair of DNA	$I)$	Recombination
B)	Deletions of base pairs of DNA	$II)$	Genetic map
C)	Generation of non-parental gene combination	$III)$	Point mutations
D)	The frequency of recombination between gene pairs on the same chromosome	$IV)$	Frame-shift mutations

The correct match is

HARD

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

Write note on point or gene mutation.

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

The mechanism that causes a gene to move from one linkage group to another is called:

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

What is mutation?

MEDIUM

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

In a cell, the number of chromosomes is the same, but the amount of DNA content has changed from C to 2C. Also, the amount of histones in the cell becomes double. In which stage of the cell cycle, this process could have happened?

HARD

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

When adenine is replaced by guanine in a mutation then it is called?

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

What is mutagen?

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

To be evolutionarily successful, a mutation must be:

EASY

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

Frameshift mutation occurs when

HARD

Biology>Genetics and Evolution>Principles of Inheritance and Variation>Mutation

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