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Hydroponic Gardening
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471.

When a cluster of leaves arises from the short underground item as in pineapple, such leaves are said to be:

A.	Radical	B.	Cauline
C.	Pellate	D.	Centric

472.

When a formation is dominated by one or more species which are abundant in it, is said to be:

A.	Association	B.	Climax
C.	Community	D.	None of the above

473.

When a group of phenotypically similar appearing plant is selected and harvested and their seeds are bulked, the process is known as:

A.	Pedigree breeding	B.	Mass selection
C.	Bulk method of breeding	D.	Pure line selection

474.

When a plant heterozygous for two given characters Tt Rr, both of them are completely dominant, is self-pollinated, the resulting progeny will consist of:

A.	Six phenotypes	B.	Four phenotypes
C.	Three phenotypes	D.	Two phenotypes

475.

When a Tall plant (Tt) in pea is crossed with another Tall plant (Tt), the probability of obtaining a dwarf plants is:

A.	1?2	B.	1?4
C.	1?8	D.	1?16

476.

When an F1 is crossed with the recessive homozygote parent the cross is known as:

A.	Back cross	B.	Top cross
C.	Test cross	D.	Single cross

477.

When an individual is having both the alleles of contrasting characters, it is said to be:

A.	Monoecious	B.	Homozygous
C.	Dioecious	D.	Heterozygous

478.

When breaks occur in two chromosomes simultaneously in a nucleus and the broken chromosomes rejoin in a new manner, it results in:

A.	Dedeletion	B.	Duplication
C.	Translocation	D.	Inversion

479.

When homologous chromosomes fail to pair in prophase of meiosis, the phenomenon is known as:

A.	Desynapsis	B.	Non-disjunction
C.	Asynapsis	D.	Disjunction

480.

When leaf fall of soon after it appears, then it is said to be:

A.	Persistent	B.	Deciduous
C.	Evergreen	D.	Caduceus