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Botany
- Online Test
TN State Board
TN 12th Standard
Botany
TEST : 23
TN State Board
TN 12th Standard
Botany
Chapter 10: Economically Useful Plants and Entrepreneurial Botany
Prepare / Learn
Q1.
Which one of the following matches is correct?
A.
Palmyra - Native of Brazil
B.
Saccharun - Abundant in Kanyakumari
C.
Steveocide - Natural sweetener
D.
Palmyra sap - Fermented to give ethanol
View Solution
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Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
Chapter 1: Asexual and Sexual Reproduction in Plants
Prepare / Learn
Q2.
The scar left by funiculus in the seed is
A.
tegmen
B.
radicle
C.
epicotyl
D.
hilum
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Answer :
Option D
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT VI: Reproduction in Plants
Prepare / Learn
Q3.
Perisperm differs from endosperm in
A.
being haploid tissue
B.
having no reserve food
C.
being a diploid tissue
D.
its formation by fusion of secondary nucleus with several sperms
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Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
Chapter 2: Classical Genetics
Prepare / Learn
Q4.
Which of the following explains how progeny can posses the combinations of traits that none of the parent possessed?
A.
Law of segregation
B.
Chromosome theory
C.
Law of independent assortment
D.
Polygenic inheritance
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Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT VII: Genetics
Prepare / Learn
Q5.
In Pisum Sativum, there are 14 chromosomes. How many types of homologous pairs can be prepared?
A.
14
B.
7
C.
214
D.
210
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Answer :
Option B
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
Chapter 3: Chromosomal Basis of Inheritance
Prepare / Learn
Q6.
Removal of RNA polymerase III nucleoplasm will affect the synthesis of
A.
rRNA
B.
tRNA
C.
hnRNA
D.
mRNA
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Answer :
Option B
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT VIII: Biotechnology
Prepare / Learn
Q7.
There is a restriction endonuclease called EcoRI. What does “co” part in it stand for ?
A.
Coelom
B.
Colon
C.
Coli
D.
Coenzyme
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Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
Chapter 6: Principles of Ecology
Prepare / Learn
Q8.
Mycorrhiza promotes plant growth by
A.
Serving as a plant growth regulators
B.
Absorbing inorganic ions from soil
C.
Helping the plant in utilizing atmospheric nitrogen
D.
Protecting the plant from infection
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Answer :
Option B
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT IX: Plant Ecology
Prepare / Learn
Q9.
In an ecosystem the rate of production of organic matter during photosynthesis is termed as
A.
Secondary productivity
B.
net productivity
C.
Net primary productivity
D.
gross primary productivity
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Answer :
Option D
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
Chapter 9: Plant Breeding
Prepare / Learn
Q10.
Which of the following is incorrectly paired?
A.
Wheat - Himgiri
B.
Milch breed - Sahiwal
C.
Rice - Ratna
D.
Pusa Komal - Brassica
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Answer :
Option D
Explaination / Solution:
No Explaination.
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TN State Board
TN 12th Standard
Botany
TEST : 23
Botany
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UNIT VI: Reproduction in Plants
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UNIT VII: Genetics
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UNIT VIII: Biotechnology
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UNIT IX: Plant Ecology
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UNIT X: Economic Botany
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Chapter 1: Asexual and Sexual Reproduction in Plants
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Chapter 2: Classical Genetics
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Chapter 3: Chromosomal Basis of Inheritance
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Chapter 4: Principles and Processes of Biotechnology
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Chapter 5: Plant Tissue Culture
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Chapter 6: Principles of Ecology
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Chapter 7: Ecosystem
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Chapter 8: Environmental Issues
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Chapter 9: Plant Breeding
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Chapter 10: Economically Useful Plants and Entrepreneurial Botany
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