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  4. The condition in which there is one to many or one to few chromosomes is called as

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Q. The condition in which there is one to many or one to few chromosomes is called as

NTA AbhyasNTA Abhyas 2022

Solution:

When chromosome number in an organism increases or decreases in multiple of 'n' than the condition is known as polyploidy, but when one or more chromosome increases or decrease then the condition is known as aneuploidy. For example $2n+ \, 1, \, 2n \, - \, 1, \, 2n \, + \, 2, \, 2n-2$ , etc.