Entry Test MCQ :: Variation and Genetics

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31.

Interaction between genes occupying different loci is

A.	Dominance	B.	Epistasis
C.	Pleiotropy	D.	None of these

32.

Genes that affect growth rate in humans influencing both weight and height are

A.	Codominant	B.	Epistasis
C.	Pleiotropy	D.	Polygene

33.

All of the following are continuously varying traits except

A.	Kernel colour in wheat	B.	Skin colour in humans
C.	Height in humans	D.	Tongue rolling in humans

34.

The number of linkage groups in humans is

A.	12	B.	23
C.	46	D.	92

35.

Recombination frequency between two linked genes can be calculated by

A.	Back cross	B.	Test cross
C.	Normal cross	D.	None of these

36.

Which of the following is male determining gene in humans?

A.	tfm	B.	SRY
C.	Both of these	D.	None of these

37.

It was discovered by J.Seiler in 1914 in moth.

A.	XO-XX	B.	XY-XX
C.	ZZ-ZW	D.	None of these

38.

Haemophilia B is due to abnormality of factor

A.	VIII	B.	IX
C.	X	D.	XI

39.

Gene for blue opsin is present on chromosome.

A.	X	B.	Y
C.	7	D.	11

40.

Most common type of Diabetes mellitus is

A.	Type I	B.	Type II
C.	MODY	D.	None of these