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What is True statement regarding chromosomes and explain in detail?
Ans. (b) Klinefelter syndrome results due to an extra Y chromosome in males(Ref: Robbins 9th/pg 166; 8th/pg 165)a. False: Only one of the X chromosomes is genetically active, the other X of either maternal or paternal origin undergoes heteropyknosisand is rendered inactive called Barr body, so females have one activated chromosomeb. True: Klinefelter syndrome is best defined as male hypogonadism that occurs when there are two or more X chromosomes and one or more Y chromosomesc. False: Germs cells have haploid set of 23 chromosomesd. False: Turners is due to missing X chr.