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(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

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Trisomy

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(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 $I$	Column $II$
$(A)$ Aneuploidy	$(i)$ Increase in whole set of chromosomes
$(B)$ Monoploidy	$(ii)$ Loss or gain of a chromosome
$(C)$ Polyploidy	$(iii)$ Two sets of chromosomes
$(D)$ Diploidy	$(iv)$ $A$ single set of chromosomes

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

Allosomic trisomy condition is seen in

Match Column $I$ with Column $II$ and find the correct answer.
Column $I$ Column $II$
$(A)$ Aneuploidy $(i)$ Increase in whole set of chromosomes
$(B)$ Monoploidy $(ii)$ Loss or gain of a chromosome
$(C)$ Polyploidy $(iii)$ Two sets of chromosomes
$(D)$ Diploidy $(iv)$ $A$ single set of chromosomes

In which genetic condition,each cell in the affected person has three sex chromosomes $XXY$?

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Down's syndrome is an example of

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