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41.

Nucleous originates from:

A.	Lysosomes	B.	Golgi complex
C.	Mitochondria	D.	Chromosomes

42.

Mitotic spindle is formed in:

A.	Amitotic division only	B.	Mitosis only
C.	Meiosis only	D.	Both mitosis and meiosis

43.

Anaphase occurs in:

A.	Amitosis	B.	Mitosis
C.	Meiosis	D.	Both mitosis and meiosis

44.

Most important significance of mitosis lies in which of these:

A.	It regulates karyo-cytoplasmic relation	B.	It reduces chromosomal number to helf
C.	It doubles the number of chromosomes	D.	None of these

45.

In a cell the number of chromosomes after first meiotic division is 46, the number of chromosomes in its daughters after completion of the process will be:

A.	Same	B.	Doubled
C.	Half	D.	None of these

46.

Process of meiosis is seen to occur when a cell:

A.	Is haploid	B.	Has attained maximum growth
C.	Has to undergo sexual reproduction	D.	Has to form spores

47.

In a cell, the cell division occurs when:

A.	It is haploid	B.	It is diploid
C.	It has attained optimum growth	D.	It is disintigrating

48.

Daughter cells of meiotic division are haploid which shows:

A.	That chromosomes are located on genes	B.	That genes are located on chromosomes
C.	Genes are located on spindle fibres	D.	Chromosomes have no genes

49.

The correct sequence of various substages in first meiotic prophase is:

A.	Leptonema, zygonema, pachynema, diplonema and diakinesis	B.	Diakinesis, leptonema, zygonema, pachynema and diplonema
C.	Leptonema, zygonema, diplonema, diakinesis and pachynema	D.	None of these

50.

The replication of chromosomes occurs in:

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