NEET UG Botany Mock Test 2


45 Questions MCQ Test NEET Mock Test Series & Past Year Papers | NEET UG Botany Mock Test 2


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QUESTION: 1

Cellular structure which always disappears during mitosis and meiosis is

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QUESTION: 2

During which phase of meiosis homologous chromosomes separate ?

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QUESTION: 3

In pachytene stage of meiosis, the chromosomes appear

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QUESTION: 4
A drug from the root of the following plant cures the mental disorders:
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QUESTION: 5
One of the following is a fibre as well as an oil yielding plant
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QUESTION: 6
Tobacco leaves contain
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QUESTION: 7
Which of the following is a fungicide?
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QUESTION: 8
Conversion of organic nitrogenous compounds into ammonium compounds is called
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QUESTION: 9
Broad-leaved Oaks found in
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QUESTION: 10
Ecotone is characterized by
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QUESTION: 11
Tetradynamous condition is characteristic of family
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QUESTION: 12
A nonsense/termination codon is
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QUESTION: 13
Smallest segment of DNA capable of undergoing crossing over and recombination is
Solution: Recon is the unit of gene capable of crossing over or recombination .so option c is correct. muton is the unit of gene that undergoes mutation. cistron is the main unit of gene that is responsible for inheritance of traits and last introns are non codding sequence of dna.
QUESTION: 14
Khorana et al synthesised RNA with copolymer of UGUGUGUGUG... It produced a peptide with alternate cysteine and valine. The codons for the two are
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QUESTION: 15
The winged pollen grains of Pinus sp. are produced in-
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QUESTION: 16
Ratio 1:1:1:1 is obtained from a cross of
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QUESTION: 17
A child of blood group O cannot have parents of blood groups
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QUESTION: 18

When the two genetic loci produce identical phenotypes in cis and trans position, they are considered to be

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The cis-trans complementation test is done to determine if two mutations are allelic or nonallelic by constructing a heterozygote. Pseudoalleles are the genes that functionally behave as allelic pairs but structurally they are different genes present on two different genetic loci, not allelic pairs. Therefore, they behave as alleles in cis-trans test and produce identical phenotypes. Multiple alleles refer to the presence of more than two alleles of a gene which occupy the same genetic locus. The parts of the same gene occupy the same genetic locus and different genes occupy different genetic loci but do not produce an identical phenotype in cis-trans test

QUESTION: 19
The ATP production in photosynthesis, is called
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QUESTION: 20
Which one is group of micro-elements?
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QUESTION: 21
An essential process connected with photosynthesis is
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QUESTION: 22
Conversion of ATP to ADP produces
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QUESTION: 23
Which of the following is least effective in photosynthesis
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QUESTION: 24
The term species was coined by
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QUESTION: 25
An animal with same generic, specific and sub-specific name is
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QUESTION: 26
If the tip of the seedling is cut off, growth as well as bending cease because it hampers
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QUESTION: 27
Antherozoids are attracted towards archegonia in a fern plant. The phenomenon is
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QUESTION: 28
2 : 4-D causes
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QUESTION: 29
Which one of the following substances plays an important role in biochemical defence of host plants?
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QUESTION: 30
In which one of the following pathogens do the cells of promycelium after the germination of teleutospore produce infection hyphae instead of basidiospores?
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QUESTION: 31
Basic difference between vessel and tracheid is in
Solution: Ya correct option is c because vessels have perforation at end plates which make them tube like long structure.
QUESTION: 32
Ozone hole is caused by
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QUESTION: 33
Planting of several rows of coniferous trees, along the highways, checks
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QUESTION: 34
An orthotropous ovule is one, in which micropyle and chalaza are
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QUESTION: 35
A pome fruit is said to be false because
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QUESTION: 36
In nature, allogamy is met with in
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QUESTION: 37
In mitochondria, ATP synthesis occurs
Solution: Head of oxysomes or f1 are concerned with oxidative phosphorylation(formation of ATP by energy of oxidation) oxysomes are present at the inner membrane..inner membrane is folded into a no. of finger like cristae. Ultimately ATP synthesis occurs at cristae.
QUESTION: 38
Mitochondrial matrix has enzymes of
Solution: Krebs cycle enzymes are proteins soluble enzyme which take place in mitochondrial matrix . becoz it does not require direct oxygen , it can take only place where oxygen is present.
QUESTION: 39
Which one is absent in erythrocytes ?
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QUESTION: 40
Climbing roots are present in
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QUESTION: 41
Vegetative reproduction of Agave occurs through
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QUESTION: 42
Linnaeus classification of flowering plants is based on -
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QUESTION: 43
With rise in turgidity,Wall pressure will
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QUESTION: 44
In root hair, water enters due to
Solution: Yes u all are correct but diffusion is also correct answer but if mention special(effective) process then more correct answer is O.P.
QUESTION: 45
Cells absorb water through
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