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Test: Mutation & Genetic Disorders - NEET MCQ


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10 Questions MCQ Test Topic-wise MCQ Tests for NEET - Test: Mutation & Genetic Disorders

Test: Mutation & Genetic Disorders for NEET 2024 is part of Topic-wise MCQ Tests for NEET preparation. The Test: Mutation & Genetic Disorders questions and answers have been prepared according to the NEET exam syllabus.The Test: Mutation & Genetic Disorders MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Mutation & Genetic Disorders below.
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Test: Mutation & Genetic Disorders - Question 1

In sickle-cell anaemia glutamic acid is replaced by valine. Which one of the following triplet codes for valine?

Detailed Solution for Test: Mutation & Genetic Disorders - Question 1

The substitution of amino acid in the globin protein results due to the single base substitution at the sixth codon of the betaglobin gene from GAG (Glutamic acid) to GUG (Valine).

Test: Mutation & Genetic Disorders - Question 2

People suffering from colour blindness fail to distinguish which of the two colours?

Detailed Solution for Test: Mutation & Genetic Disorders - Question 2
  • People who are colour blind fail to distinguish between red and green colours.
  • Colour blindness is a sex-linked recessive trait in which the normal gene and its recessive allele are carried by X-chromosome.
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Test: Mutation & Genetic Disorders - Question 3

Which of the following conditions is called monosomic?

Detailed Solution for Test: Mutation & Genetic Disorders - Question 3

The aneuploid condition 2n-1 is called monosomy (meaning 'one chromosome') because only one copy of some particular chromosome is present instead of the usual two found in the diploid condition. The ancuploid 2n+1 is called trisomy, where three copies of a particular chromosome can be seen. 2n-2 is null isomy with both the homologous chromosomes missing and n+1 is disomy. 
 

Test: Mutation & Genetic Disorders - Question 4

Gene for colour blindness is located on​

Detailed Solution for Test: Mutation & Genetic Disorders - Question 4

The two genes that produce red and green light-sensitive proteins are located on the X chromosome. Mutations in these genes can cause color blindness. Color blindness is a common inherited sex-linked disorder that affects a person's ability to see or recognize certain colors. Eight to ten percent of all males and one half of a percent of all females are color-blind.

Test: Mutation & Genetic Disorders - Question 5

Mutations which arise suddenly in nature are called

Detailed Solution for Test: Mutation & Genetic Disorders - Question 5

Spontaneous mutations : Mutation have been occurring in nature without a known cause is called spontaneous mutation.

Test: Mutation & Genetic Disorders - Question 6

Sickle-cell anaemia is

Detailed Solution for Test: Mutation & Genetic Disorders - Question 6

Sickle cell anemia is an autosomal recessive disease, it only occurs if both the maternal and paternal copies of the HBB gene are defective.

Test: Mutation & Genetic Disorders - Question 7

Klinefelter syndrome is due to

Detailed Solution for Test: Mutation & Genetic Disorders - Question 7

It is a condition in boys caused by the presence of an extra X chromosome. Boys normally have one X and one Y chromosome, but most boys with Klinefelter syndrome have two X and one Y chromosome. It is relatively common, occurring in about 1 of every 500 baby boys. There is a wide range findings in this condition, and many cases are not diagnosed until adulthood.

Test: Mutation & Genetic Disorders - Question 8

Turner syndrome is

Detailed Solution for Test: Mutation & Genetic Disorders - Question 8

Turner syndrome also known as 45,X or 45,X0, is a condition in which a female is partly or completely missing an X chromosome. Signs and symptoms vary among those affected.

Test: Mutation & Genetic Disorders - Question 9

Down’s syndrome is due to

Detailed Solution for Test: Mutation & Genetic Disorders - Question 9

Down syndrome is usually caused by an error in cell division called “nondisjunction.” Nondisjunction results in an embryo with three copies of chromosome 21 instead of the usual two. Prior to or at conception, a pair of 21st chromosomes in either the sperm or the egg fails to separate.

Test: Mutation & Genetic Disorders - Question 10

Point mutation involves

Detailed Solution for Test: Mutation & Genetic Disorders - Question 10

Mutation in single nucleotide base of a DNA segment is called as a point mutation. It occurs by substitution or frameshift mutation. Exchange of one nitrogenous base for another base is called as substitution; option A is correct.

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