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Botany
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TN State Board
TN 12th Standard
Botany
TEST : 31
TN State Board
TN 12th Standard
Botany
Chapter 3: Chromosomal Basis of Inheritance
Prepare / Learn
Q1.
What is true about tRNA?
A.
It binds with an amino acid at its 3’ end
B.
It has 5 double stranded regions
C.
It has a codon at one end which recognizes the anticodon of mRNA
D.
It looks like clover leaf in the three 3D structure
View Solution
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Answer :
Option D
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT VIII: Biotechnology
Prepare / Learn
Q2.
A technique of micropropagation is
A.
Protoplast fusion
B.
embryo rescue
C.
somatic hybridization
D.
somatic embryogenesis
View Solution
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Answer :
Option D
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT IX: Plant Ecology
Prepare / Learn
Q3.
The mass of living material at a trophic level at a particular time is called
A.
Standing crop
B.
Gross primary productivity
C.
Standing state
D.
Net primary productivity
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Answer :
Option A
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT VII: Genetics
Prepare / Learn
Q4.
In a hexaploidy wheat, the haploid (n) and basic (x) numbers of chromosomes are
A.
n =21 and x =7
B.
n =7 and x =21
C.
n =21 and x =21
D.
n =21 and x =14
View Solution
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Answer :
Option A
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
Chapter 3: Chromosomal Basis of Inheritance
Prepare / Learn
Q5.
Which one of the following hydrolysis internal phosphodiester bonds in a polynucleotide chain?
A.
Lipase
B.
Exonuclease
C.
Endonuclease
D.
Protease
View Solution
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Answer :
Option B
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT VIII: Biotechnology
Prepare / Learn
Q6.
To obtain virus-free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken?
A.
Apical meristem only
B.
Palisade parenchyma
C.
Both apical and axillary meristems
D.
Epidermis only
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Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT IX: Plant Ecology
Prepare / Learn
Q7.
Match the following and select the correct option
A.
I : i, II: ii, III: iii, IV: iv
B.
I : iv, II: i, III: iii, IV: ii
C.
I : iii, II: ii, III: iv, IV: i
D.
I : ii, II: i, III: iv, IV: iii
View Solution
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Answer :
Option D
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT VII: Genetics
Prepare / Learn
Q8.
Point mutation involves
A.
Deletion
B.
Insertion
C.
Change in single base pair
D.
duplication
View Solution
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Answer :
Option C
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
Chapter 3: Chromosomal Basis of Inheritance
Prepare / Learn
Q9.
DNA element with ability to change position is called
A.
Cistron
B.
Transposon
C.
Intron
D.
Recon
View Solution
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Answer :
Option B
Explaination / Solution:
No Explaination.
TN State Board
TN 12th Standard
Botany
UNIT VIII: Biotechnology
Prepare / Learn
Q10.
Cellular totipotency was demonstrated by
A.
Theodore Schwann
B.
A.V. Leeuwenhoek
C.
F.C. Steward
D.
Robert Hooke
View Solution
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Answer :
Option C
Explaination / Solution:
No Explaination.
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TN State Board
TN 12th Standard
Botany
TEST : 31
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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