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41.

A successful establishment of vegetation in a new locality means:

A.	Commensalisnt	B.	Ecesis
C.	Succession	D.	Psammosere

42.

With four bases A, U, G and C the possible number of triplet cordons are 64. If there is no uracil, the number of codons will be:

A.	3?64	B.	9?64
C.	27?64	D.	None of above

43.

Wind pollination is also known as:

A.	Anemophyly	B.	Entomophyly
C.	Zoophyly	D.	Hydrophyly

44.

Acclimatisation is:

A.	A process of adjustment by crop plants to environment	B.	Related with the clay
C.	Removal of female parts of a flower	D.	Changing of climatical condition

45.

According to position of the ovule within the ovary, an ovule may be:

A.	Ascending	B.	Pendulous
C.	Suspended	D.	All of the above

46.

Actual petrified remains of ancient plants and animals or impressions left by them in rocks are called:

A.	Fossils	B.	Models
C.	Traces	D.	None of the above

47.

Adjustment of individual to their environment by mean of special structures or of function of spoken of:

A.	Mutation	B.	Variation
C.	Heredity	D.	Adaptation

48.

Adventitious roots grow from:

A.	Radical	B.	Plumule
C.	Hypophysis	D.	Any part of the plant body other than the radical

49.

After the cell has undergone mitosis, the amount of DNA in daughter cells will be:

A.	Equal to the parent cell	B.	Half of the parent cell
C.	Double of the parent cell	D.	None of the above

50.

Albinism in plants is associated with:

A.	Epistatis	B.	Recessive lethal
C.	Dominant lethal	D.	Chromosome duplication