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51.

Blueprint of heredity in chromosomes is:

A.	RNA	B.	DNA
C.	Histones	D.	Proteins

52.

Division of centromeres during mitosis occurs during:

A.	Prophase	B.	Metaphase
C.	Anaphase	D.	Telophase

53.

During meiotic cell division the centromeres of chromosomes occurs during:

A.	Anaphase of first meiotic division	B.	Anaphase of second meiotic division
C.	Both of these stages	D.	None of these stages

54.

Division of cytoplasm is termed:

A.	Karyokinesis	B.	Cytokinesis
C.	Karyocytokinesis	D.	None of them

55.

Nucleic acid forming chromosomes is:

A.	RNA	B.	DNA
C.	AMP	D.	GMP

56.

Arrangement of chromosomes at equatorial place of spindle occur during:

A.	Prophase	B.	Metaphase
C.	Anaphase	D.	Telophase

57.

First stage of cell division is marked by:

A.	Prophase	B.	Interphase
C.	Anaphase	D.	Telophase

58.

DNA polymerase is associated with:

A.	Process of DNA duplication	B.	Process of RNA duplication
C.	Process of protein synthesis	D.	None of these

59.

When during meiotic cell division, chromosomes first appear duplicated, each bivalent is called:

A.	Tetramerous	B.	Tetrad
C.	Tetraploid	D.	None of these

60.

A gamete has:

A.	x number of chromosomes	B.	2 x number of chromosomes
C.	4 x number of chromosomes	D.	None of these