Botany-CPMT MCQ Questions and Answers

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Q41
A recessive pair of alleles at one locus sometimes prevents the expression of a dominant allele at another locus. This expression is termed as-
  • A Pleiotropy
  • B Polygenic inheritance
  • C Complementary gene
  • D Epistasis
Answer: Option D
Q42
Floridean starch is found in-
  • A Cyanophyceae
  • B Chlorophyceae
  • C Myxophyceae
  • D Rhodophyceae
Answer: Option D
Q43
Feathery stigma is present in-
  • A Ceasalpinia
  • B Pisum sativum
  • C Datura stramonium
  • D Triticum aestivum
Answer: Option D
Q44
Maximum transpiration occurs through/ from-
  • A Ground tissue of scale leaf
  • B Protoderm and procambium
  • C Periderm and lenticels
  • D Dermal tissue
Answer: Option D
Q45
Separation of components of a mixture based on their differential movements is called-
  • A Plasmolysis
  • B Dialysis
  • C Osmosis
  • D Chromatography
Answer: Option D
Q46
The free energy in breaking down of glucose into CO2 and H2O is-
  • A Negative and exergonic
  • B Positive and exergonic
  • C Negative and endergonic
  • D Positive and endergonic
Answer: Option A
Q47
A pome fruit is said to be false because-
  • A The fruit is present in fleshy edible thalamus
  • B The endocarp is cartilaginous
  • C The pericarp is inconspicuous
  • D The fruit is derived from inferior ovary
Answer: Option A
Q48
If mendel had studied the 7 traits using a plant with 12 chromosomes instead of 14 in what way would the interpretations have been different ?
  • A He would not have discovered the law of independent assortment
  • B He would have mapped the chromosome
  • C He would have discovered blending o r incomplete dominance
  • D He would have discovered sex linkage
Answer: Option A
Q49
Enzymes are absent in-
  • A Fungi
  • B Cyanobacteria
  • C Viruses
  • D Algae
Answer: Option C
Q50
Length of one turn of the helix in a B-form DNA is approximately-
  • A 2 nm
  • B 20 nm
  • C 0•34 nm
  • D 3•4 nm
Answer: Option D
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