Entry Test MCQ :: Chromosome and DNA

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31.

Strand of DNA which is not transcribed is called

A.	Antisense	B.	Template
C.	Coding	D.	None of these

32.

Phenylketonuria is due to deficiency of

A.	Phenylalnine	B.	Phenylalanine hydroxylase
C.	Phenylene	D.	All of these

33.

Molecular basis of sickle cell anaemia was found by

A.	F. Sanger	B.	Beadle and Tatum
C.	Vernone Ingram	D.	Mendal

34.

Which is incorrect about nucleosome

A.	2 turns of DNA coiled round histones	B.	8 histones as acidic proteins
C.	200 nucleotides in one nucleosome	D.	None of these

35.

Sex chromosomes were 1" discovered in

A.	Man	B.	Pea plant
C.	Fruitfly	D.	None of these

36.

A sugarcane cell has _________ chromosomes.

A.	20	B.	32
C.	40	D.	80

37.

Centromere represents

A.	Primary constriction	B.	Secondary constriction
C.	Tertiary constriction	D.	Quaternary constriction

38.

Wich of the following cal kill mice if injected separately?

A.	Live R type pneumococcus	B.	Heat killed R type pneumococcus
C.	Live S type pneumococcus	D.	Heat killed S type pneumococcus

39.

X-Ray diffraction pattern of DNA was prepared by

A.	Rosalind Franklin	B.	Maurice Wilkins
C.	Watson	D.	Crick

40.

In sickle cell Hb, which chain is affected?

A.	Alpha chain	B.	Beta Chain
C.	Both of these	D.	None of these