Botany MCQs Questions Papers for CSS PMS

Botany MCQs

(1) In protein synthesis, amono acid molecule attaches with tRNA with help of enzyme amonoacyl tRNA:
(a) Synthetase
(b) Synthase
(c) Polymerase
(d) None of these

(2) The term polyploidy is used according to the number of chromosomes set in nucleus:
(a) One set
(b) Three sets
(c) Ten sets
(d) Many sets
(e) None of these

(3) The plant growth hormone discovered as a result of the investigations of the rice disease cause by Fusarium moliniform was:
(a) Auxin
(b) Ethylene
(c) Gibberellin
(d) None of these

(4) Transported soils deposited by the action of wind are classified as:
(a) Eolian
(b) Alluvial
(c) Colluvial
(d) None of these

(5) The RNA that acts as template in process of translation is called:
(a) rRNA
(b) mRNA
(c) rRNA
(d) None of these

(6) The movement of material with in the plant body is known as:
(a) Absorption
(b) Adsorption
(c) Transformation
(d) None of these

(7) How many ATP molecules are produced when one molecule of glucose is completely oxidized to H2O and CO2?
(a) 8
(b) 28
(c) 32
(d) 38
(e) None of these

(8) Seeds that require light for germination are said to be:
(a) Photoblastic
(b) Photodormant
(c) Photophile
(d) Photozoic
(e) None of these

(9) Viviparous germination is present in:
(a) Mangroves
(b) Lithophytes
(c) Both (a) and (b)
(d) None of these

(10) In eukaryotes the number of start codon is/are:
(a) 1
(b) 3
(c) 4
(d) 5
(e) None of these

(11) The basis of evolution in living organisms is:
(a) Allele
(b) Mutation
(c) Gene
(d) None of these

(12) Plant absorbs water from soil by:
(a) Root cap
(b) Root tips
(c) Root hairs
(d) None of these

(13) The percentage of moisture held in a soil after the drainage of gravitational water is the:
(a) Field capacity
(b) Hygroscopic water
(c) Permanent wilting percentage
(d) None of these

(14) Changes in the arrangement of gene loci with in a chromosome are termed as:
(a) Translocation
(b) Deficiency
(c) Duplication
(d) None of these

(15) Acquired characters are inherited according to:
(a) Darwin
(b) Lamarck
(c) Weismann
(d) Miller
(e) None of these

(16) The end product of Krebs cycle is:
(a) Citric acid
(b) Oxaloacetic acid
(c) Pyruvic acid
(d) Lactic acid
(e) None of these

(17) The function of mRNA is:
(a) Selection of amino acids
(b) Production of tRNA
(c) To synthesize DNA
(d) None of these

(18) Replication of DNA is:
(a) Conservative
(b) Semi conservative
(c) De novo
(d) None of these

(19) Oxygen released from green plant comes from:
(a) H2O
(b) CO2
(c) Glucose
(d) Proteins
(e) None of these

(20) Cacti and other succulents are typically found in:
(a) Deserts
(b) Forests
(c) Mountains
(d) Sea
(e) None of these

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