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Test: Botany Mock Test - 2


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Test: Botany Mock Test - 2 - Question 1

Cellular structure which always disappears during mitosis and meiosis is

Test: Botany Mock Test - 2 - Question 2

During which phase of meiosis homologous chromosomes separate ?

Test: Botany Mock Test - 2 - Question 3

In pachytene stage of meiosis, the chromosomes appear

Test: Botany Mock Test - 2 - Question 4
A drug from the root of the following plant cures the mental disorders:
Test: Botany Mock Test - 2 - Question 5
One of the following is a fibre as well as an oil yielding plant
Test: Botany Mock Test - 2 - Question 6
Tobacco leaves contain
Test: Botany Mock Test - 2 - Question 7
Which of the following is a fungicide?
Test: Botany Mock Test - 2 - Question 8
Conversion of organic nitrogenous compounds into ammonium compounds is called
Test: Botany Mock Test - 2 - Question 9
Broad-leaved Oaks found in
Test: Botany Mock Test - 2 - Question 10
Ecotone is characterized by
Test: Botany Mock Test - 2 - Question 11
Tetradynamous condition is characteristic of family
Test: Botany Mock Test - 2 - Question 12
A nonsense/termination codon is
Test: Botany Mock Test - 2 - Question 13
Smallest segment of DNA capable of undergoing crossing over and recombination is
Detailed Solution for Test: Botany Mock Test - 2 - Question 13 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.
Test: Botany Mock Test - 2 - 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
Test: Botany Mock Test - 2 - Question 15
The winged pollen grains of Pinus sp. are produced in-
Test: Botany Mock Test - 2 - Question 16
Ratio 1:1:1:1 is obtained from a cross of
Test: Botany Mock Test - 2 - Question 17
A child of blood group O cannot have parents of blood groups
Test: Botany Mock Test - 2 - Question 18

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

Detailed Solution for Test: Botany Mock Test - 2 - Question 18

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

Test: Botany Mock Test - 2 - Question 19
The ATP production in photosynthesis, is called
Test: Botany Mock Test - 2 - Question 20
Which one is group of micro-elements?
Test: Botany Mock Test - 2 - Question 21
An essential process connected with photosynthesis is
Test: Botany Mock Test - 2 - Question 22
Conversion of ATP to ADP produces
Test: Botany Mock Test - 2 - Question 23
Which of the following is least effective in photosynthesis
Test: Botany Mock Test - 2 - Question 24
The term species was coined by
Test: Botany Mock Test - 2 - Question 25
An animal with same generic, specific and sub-specific name is
Test: Botany Mock Test - 2 - Question 26
If the tip of the seedling is cut off, growth as well as bending cease because it hampers
Test: Botany Mock Test - 2 - Question 27
Antherozoids are attracted towards archegonia in a fern plant. The phenomenon is
Test: Botany Mock Test - 2 - Question 28
2 : 4-D causes
Test: Botany Mock Test - 2 - Question 29
Which one of the following substances plays an important role in biochemical defence of host plants?
Test: Botany Mock Test - 2 - 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?
Test: Botany Mock Test - 2 - Question 31
Basic difference between vessel and tracheid is in
Detailed Solution for Test: Botany Mock Test - 2 - Question 31 Ya correct option is c because vessels have perforation at end plates which make them tube like long structure.
Test: Botany Mock Test - 2 - Question 32
Ozone hole is caused by
Test: Botany Mock Test - 2 - Question 33
Planting of several rows of coniferous trees, along the highways, checks
Test: Botany Mock Test - 2 - Question 34
An orthotropous ovule is one, in which micropyle and chalaza are
Test: Botany Mock Test - 2 - Question 35
A pome fruit is said to be false because
Test: Botany Mock Test - 2 - Question 36
In nature, allogamy is met with in
Test: Botany Mock Test - 2 - Question 37
In mitochondria, ATP synthesis occurs
Detailed Solution for Test: Botany Mock Test - 2 - Question 37 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.
Test: Botany Mock Test - 2 - Question 38
Mitochondrial matrix has enzymes of
Detailed Solution for Test: Botany Mock Test - 2 - Question 38 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.
Test: Botany Mock Test - 2 - Question 39
Which one is absent in erythrocytes ?
Test: Botany Mock Test - 2 - Question 40
Climbing roots are present in
Test: Botany Mock Test - 2 - Question 41
Vegetative reproduction of Agave occurs through
Test: Botany Mock Test - 2 - Question 42
Linnaeus classification of flowering plants is based on -
Test: Botany Mock Test - 2 - Question 43
With rise in turgidity,Wall pressure will
Test: Botany Mock Test - 2 - Question 44
In root hair, water enters due to
Detailed Solution for Test: Botany Mock Test - 2 - Question 44 Yes u all are correct but diffusion is also correct answer but if mention special(effective) process then more correct answer is O.P.
Test: Botany Mock Test - 2 - Question 45
Cells absorb water through
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