When the chromosome number of a given organis | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The condition where an organism has one extra chromosome in one of its homologous pairs is called $Trisomy$. In this state,the chromosome count be

Vedclass · Accepted Answer

Trisomy

Vedclass · Answer

(B) The condition where an organism has one extra chromosome in one of its homologous pairs is called $Trisomy$. In this state,the chromosome count becomes $2n + 1$. $Monosomy$ $(2n - 1)$ refers to the loss of one chromosome from a pair. $Nullisomy$ $(2n - 2)$ refers to the loss of both chromosomes of a homologous pair. $Polyploidy$ refers to an increase in the number of entire sets of chromosomes (e.g.,$3n, 4n$).

Column-$I$ (Disorder)	Column-$II$ (Ploidy)
$P$. Down's syndrome	$I$. Sex chromosomal trisomy
$Q$. Klinefelter's syndrome	$II$. Sex chromosomal monosomy
$R$. Turner's syndrome	$III$. Autosomal trisomy

When the chromosome number of a given organism has one additional chromosome in one of the homologous pairs,the condition is known as . . . . . .

Similar Questions

Sometimes chromosome number increases or decreases due to:

Mark the correct match.

Match the following columns:

Column-$I$ (Disorder) Column-$II$ (Ploidy)

$P$. Down's syndrome $I$. Sex chromosomal trisomy

$Q$. Klinefelter's syndrome $II$. Sex chromosomal monosomy

$R$. Turner's syndrome $III$. Autosomal trisomy

Number of chromosomes in Down's syndrome are

Which of the following disorders exhibits sex chromosomal monosomy?

Vedclass Test Series

Exam Paper Generator

Online Exam Module