+91-8076753736 support@wiredfaculty.com
logo
logo

Sponsor Area

Principles Of Inheritance And Variation

Question
CBSEENBI12003276
Wired Faculty App

2n - 1 condition is called

  • trisomy

  • monosomy

  • nullisomy

  • tetrasomy

Solution

B.

monosomy

2n - 1 condition represents diploid set of chromosomes having loss of one chromosome, the presence of one unpaired chromosomes along with diploid set is called monosomy.

Trisomy is a chromosomal disorder characterized by an additional chromosome. Eg. Down syndrome.

 Nullisomy is a genetic condition involving the lack of both the normal chromosomal pairs for a species. This condition is represented by 2n - 2.

Tetrasomy is a form of aneuploidy with the presence of four copies, instead of normal two, of particular chromosomes.

Some More Questions From Principles of Inheritance and Variation Chapter

What is Mendel’s monohybrid phenotypic ratio ?

Write down Mendel’s dihybrid Phenotypic ratio 

Who were the rediscoverers of Mendelism ?

What are the real determinants of what an organism will become ?

What is the unique feature of F1 generation ?

What will be the genetic make up of an organism which suffers from sickle cell anaemia ?

What do the symbols square and circle in a pedigree chart indicate ?

Define heterogamy. Give an example.

How many chromosomes are found in human cells ?

Why is male Drosophila regarded as heterogametic ?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation