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MEDIUM
ENGLISH
Agriculture
A dihybrid ratio is____________________?
A
9:3:3:1
Option A
B
1:1:1:1
Option B
C
3:1
Option C
D
27:9:9:3:3:3:1
Option D
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MEDIUM
ENGLISH
Agriculture
The chromosome number of human race is__________________?
A
48
Option A
B
41
Option B
C
44
Option C
D
46
Option D
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MEDIUM
ENGLISH
Agriculture
Mendel studied contrasting characters for his breeding cxperiments with peas which of the following character he did not study_______________?
A
Pod color
Option A
B
Pod shape
Option B
C
Plant height
Option C
D
Leaf shape
Option D
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MEDIUM
ENGLISH
Agriculture
The new crop critical has been evolved by intervener hybridization between________________________?
A
Wheat & rice
Option A
B
Rye & Wheat
Option B
C
Wheat & Anglos
Option C
D
Rice & maize
Option D
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MEDIUM
ENGLISH
Agriculture
The crossing of a yomozygous tall plant and a homozygous dwarf plant would yield plants in the ratio of_________________?
A
2 tall: 2 dwarf
Option A
B
All homozygous dwarf
Option B
C
All the heterozygous tall
Option C
D
One homozygous tall, one homozygous dwarf, two heterozygous tall
Option D
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MEDIUM
ENGLISH
Agriculture
In crop improvement programmed haploids are of great importance because they__________________?
A
Are useful in studies on meiosis
Option A
B
Give homozygous lines following diplodization
Option B
C
Grow better under adverse conditions
Option C
D
Require only about half the amount of chemical fertilizers compared to diploids
Option D
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MEDIUM
ENGLISH
Agriculture
Among the following the test cross is_________________?
A
TTxTT
Option A
B
TTxTt
Option B
C
TtxTt
Option C
D
Ttxtt
Option D
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MEDIUM
ENGLISH
Agriculture
Linkage of hereditary units was discounted by__________________?
A
W. Batson and B.C Pun net
Option A
B
T.B. Morgan and G. Mendel
Option B
C
W.S. Sutton and K. R. Porter
Option C
D
C.B. Bridges and G.H. Shull
Option D
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MEDIUM
ENGLISH
Agriculture
Gynandromorphy in Drosophila because of_________________?
A
Loss of X-chromosome
Option A
B
Kappa particles
Option B
C
inheritance
Option C
D
Gain of Y-chromosome
Option D
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MEDIUM
ENGLISH
Agriculture
Absence of chlorophyll in a plant is known as__________________?
A
Acrodsome
Option A
B
Albinism
Option B
C
A gouri
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
The spread of genes from one breeding population to another by migration which may result in changes in gene frequency is called__________________?
A
Gene flow
Option A
B
Genetic drift
Option B
C
Gene frequency
Option C
D
None of the above
Option D
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MEDIUM
ENGLISH
Agriculture
Occurrence of cells in diploid organisms containing multiples of the 2n genomes is known as____________________?
A
Allopolyploid
Option A
B
Amphidiploids
Option B
C
End polyploidy
Option C
D
Aneupoidy
Option D
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MEDIUM
ENGLISH
Agriculture
Pedigree selection is used in____________________?
A
Self pollinated plants
Option A
B
Cross pollinated plants
Option B
C
Plant difficult to hybridized
Option C
D
For crosses at intervener level
Option D
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MEDIUM
ENGLISH
Agriculture
An organism or cell having a chromosome number that is higher than the exact nultiple of the basic number is known as__________________?
A
Hypoploid
Option A
B
Hyperploid
Option B
C
Allopolyploid
Option C
D
Autopolyploid
Option D
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MEDIUM
ENGLISH
Agriculture
Bacteria, single celled animals and plants are grouped to gather as_______________________?
A
Protozoa
Option A
B
Prototypal
Option B
C
Protista
Option C
D
Prokaryotes
Option D
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MEDIUM
ENGLISH
Agriculture
The protein synthesizing system is associated with_____________________?
A
Microtubules
Option A
B
Ribosome’s
Option B
C
Episodes
Option C
D
Mitochondria
Option D
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MEDIUM
ENGLISH
Agriculture
From a single ear of corn a farmer planted 300 kernels which produced 225 tall and 75 short plants. the genotype of these offsprings are most likely to be_____________________?
A
TT and Tt only
Option A
B
TT and tt only
Option B
C
Tt and Tt only
Option C
D
TT Tt and tt
Option D
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MEDIUM
ENGLISH
Agriculture
If the frequency of a dominant phenotype in a stable population in 75% the frequency of the dominant allele in that population is____________________?
A
50%
Option A
B
75%
Option B
C
25%
Option C
D
40$
Option D
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MEDIUM
ENGLISH
Agriculture
As a general rule interbreeding is possible between______________________?
A
Any two members of a Genus
Option A
B
Any two members of a Species
Option B
C
Any two members of a Family
Option C
D
Any two members of an order
Option D
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MEDIUM
ENGLISH
Agriculture
The term cell was introduced in 1665 by__________________?
A
Maligned
Option A
B
Hook
Option B
C
Schneider
Option C
D
Schumann
Option D
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