Botany Quiz | Botany Short Questions and Answers

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Questions
41 Cell organelle covered by single unit membrane is:
A Peroxisomes
B Lysosome
C Glyoxisome
D All of these

Answer: All of these
42 Blue-green alga that causes red blooms is:
A Anabaena
B Gleacapsa
C Trichodesmium
D Nostoc

Answer: Trichodesmium
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43 Prokaryotic genetic material is:
A Circular DNA without his tones
B Liner DNA without his tones
C Liner DNA + his tones
D Circular DNA + his tones

Answer: Circular DNA without his tones
44 Abscission layer developed during leaf fall is made of:
A Parenchymatous cells
B Cork cells
C Sclerenchymatous cells
D Sclerenchymatous cells

Answer: Parenchymatous cells
45 Gingerly oil (till) is got from:
A Sesamum indicum
B Linus usitatissimum
C Cocos nucifera
D Brassica rapa

Answer: Sesamum indicum
46 In meios-I, the Centro mere undergoes:
A Division but the daughter chromosomes do not separate
B Division between prophase and metaphase
C Division between anaphase and Interphase
D No division

Answer: No division
47 Morphine is obtained from:
A Papaver somniferum
B Rauwolffia serpentine
C Aconitum nacelles
D Cinchona officinalis

Answer: Papaver somniferum
48 Coir of commerce is obtained from:
A Endocarp of coconut
B Mesocarp of coconut
C Stem of jute
D Leaves of coconut

Answer: Leaves of coconut
49 The components of an ecosystem are:
A Trees and weeds
B Plants and animals
C Man and plants
D Biotic and abiotic

Answer: Biotic and abiotic
50 The 10% energy transfer law of food chain was given by
A Lindmann
B Lederberg
C Weismann
D Lindley

Answer: Lindmann
51 Double fertilization is found in:
A Angiosperms
B Bryophytes
C Gymnosperms
D Pteridophytes

Answer: Angiosperms
52 The term water potential was proposed by:
A Slatyer and Taylor
B Godlewski
C Dixon and Jolly
D J. C. Bose

Answer: Slatyer and Taylor
53 A plant having two types of haploid structures in its life cycle is known as:
A Haplobiontic
B Diplobiontic
C Haplontic
D Diplontic

Answer: Haplobiontic
54 A chain of amino acids joined by peptide bonds is called as
A Peptide chain
B Polypeptide chain
C Polyamino acid chain
D Nucleotide chain

Answer: Polypeptide chain
55 Root cap is not found n:
A Mesophytes
B Hydrophytes
C Xerophytes
D Halophytes

Answer: Xerophytes
56 The high yielding hybrid crop varieties to exploit hybrid vigour, the farmers need to Purchase fresh hybrid seed every year because:
A Hybrid vigour is not long standing due to inbreeding depression
B They are not allowed to grow their own seed
C It is always associated with 4ncreased heterozygosity
D Government has accepted Dunkel’s proposals

Answer: Hybrid vigour is not long standing due to inbreeding depression
57 Fragrant flowers with well developed nectarines are an adaptation for:
A Anemophily
B Ornithophily
C Entamophily
D Hydrophily

Answer: Entamophily
58 Soil salinity is measured by:
A Potometer
B Porometer
C Conductivity meter
D Calorimeter

Answer: Conductivity meter
59 The scutellum of the gram embryo is a:
A Vestigial organ
B Photosynthetic organ
C Absorptive organ
D Protective organ

Answer: Vestigial organ
60 The genes, which remain confined to differential region of ‘Y’ chromosome, are:
A Autosomal genes
B Holandric genes
C Sex linked genes
D Mutant genes

Answer: Holandric genes
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