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UNIT VI: Reproduction in Plants
- Online Test
UNIT VI: Reproduction in Plants
TEST : 1
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q1.
Which of the following plant reproduces by leaf
A.
Agave
B.
Bryophyllum
C.
Gladiolus
D.
Potato
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q2.
Advantage of cleistogamy
A.
Higher genetic variability
B.
More vigorous offspring
C.
No dependence on pollinators
D.
Vivipary
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q3.
An example for edible underground stem is
A.
Carrot
B.
Groundnut
C.
Sweet potato
D.
Potato
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Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q4.
Pollen tablets are available in the market for
A.
invitro fertilization
B.
Breeding programmes
C.
supplementing food
D.
ex situ conservation
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q5.
Geitonogamy involves
A.
Fertilization of a flower by pollen from another flower of a same plant
B.
Fertilization of a flower by pollen of the same flower
C.
Fertilization of a flower by pollen from a flower of another plant in a same population
D.
Fertilization of a flower by the pollen from a flower of another plant belongs to distant population.
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Answer :
Option A
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q6.
Which one of the following generates new genetic combinations leading to variations?
A.
vegetative reproduction
B.
parthenogenesis
C.
Sexual reproduction
D.
Nucellar polyembryony
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q7.
Functional megaspore in angiosperm develops into an
A.
endosperm
B.
Embryo sac
C.
embryo
D.
ovule
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Answer :
Option B
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q8.
Which of the statement is not true.
A.
Pollen grain of many species cause severe allergies
B.
Stored pollen in liquid nitrogen can be used in crop breeding programmes
C.
Tapetum helps in the dehiscence of anther
D.
Exine of pollen grains is made up of sporopollenin
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Answer :
Option C
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q9.
When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is
A.
pentaploidy
B.
diploidy
C.
triploidy
D.
tetraploidy
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Answer :
Option D
Explaination / Solution:
No Explaination.
# UNIT VI: Reproduction in Plants
# TN 12th Botany
Prepare / Learn
Q10.
Which one of the following pairs of plant structures has haploid number of chromosomes?
A.
Egg nucleus and secondary nucleus
B.
Megaspore mother cell and antipodal cells
C.
Egg cell and and antipodal cells
D.
Nucellus and antipodal cells
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Answer :
Option C
Explaination / Solution:
No Explaination.
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