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Question
The chromosomes consist of two arms called ‘X’. These ‘X’ are held together by a small constriction, called ‘Y’. Here, ‘Y’ is__________.
The chromosomes consist of two arms called ‘X’. These ‘X’ are held together by a small constriction, called ‘Y’. Here, ‘Y’ is__________.
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Solution
The correct option is B Centromere
Chromosomes contain information for inheritance of characters from parents to offspring in the form of DNA. The two arms of the chromosome are called chromatids (here, X) and they are held together by a small constriction called centromere (here, Y).
Chromosomes contain information for inheritance of characters from parents to offspring in the form of DNA. The two arms of the chromosome are called chromatids (here, X) and they are held together by a small constriction called centromere (here, Y).
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