Barr bodies are associated with ________.proto-oncogenessignal transductionframeshift mutationsX chromosome inactivation

What is a Barr body?Multiple choice question.An inactive autosomeAn abnormal autosomeAn extra Y chromosomeAn inactive X chromosome

Number of Barr body in XXXY is

Number of Barr bodies in humanfemale is(1) 1 (2) 2(3) 3 (4) 4Previous Year’s QuestionA child of O-group has B-groupfather. The genotype of fatherwill be(1) IOIO (2) I BIB(3) I AIB (4) IB IO

A nonsense mutation is one that:Select one:a. Deletes segment of RNAb. Changes an amino acid from one to anotherc. Creates a premature stop codond. Adds an additional codon to an RNA transcript

A nonsense mutation is one that:Select one:a. Creates a premature stop codonb. Changes an amino acid from one to anotherc. Deletes segment of RNAd. Adds an additional codon to an RNA transcript