Botany-CPMT MCQ Questions and Answers

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Q31
The ‘first codon’ discovered by Nirenberg and Matthaei was-
  • A AAU
  • B GGG
  • C CCC
  • D UUU
Answer: Option D
Q32
The smallest unit of genetic material capable of undergoing mutation is-
  • A Cistron
  • B Muton
  • C Recon
  • D Proton
Answer: Option B
Q33
The least number of t RNA molecules for each of the twenty amino acids found in protein is-
  • A One
  • B Two
  • C Three
  • D Four
Answer: Option A
Q34
Which of the following, plants is commonly known as ‘redwood’ ?
  • A Sequoia sempervirens
  • B Dacridium laxifolium
  • C Sequoia giganteum
  • D Polygalia hirsute
Answer: Option A
Q35
Epidermal tissue forms the outer protective covering of a herbaceous plant. It is modified in-
  • A Leaves
  • B Stems
  • C Roots
  • D All of the above
Answer: Option D
Q36
PCR based markers have been developed to-
  • A Create terminate codon
  • B Manufacture antibiotics
  • C Differentiate different biotypes of gall midge
  • D Obtain soil micro-organisms with the help of specific
Answer: Option C
Q37
The function of a root cap is to-
  • A Produce embryonic cell
  • B Protect the root apical meristem from damage
  • C Absorb minerals
  • D Absorb water
Answer: Option B
Q38
In a certain dicotyledonous stem the vascular cambium is a meristematic tissue referred to as-
  • A Apical
  • B Lateral
  • C Intercalary
  • D Secondary
Answer: Option B
Q39
In the phosphorus cycle, weathering makes phosphate available first to-
  • A Producers
  • B Consumers
  • C Tertiary consumers
  • D Decomposers
Answer: Option A
Q40
Petaloid staminode is seen in genus-
  • A Cassia
  • B Canna
  • C Solanum
  • D All of the above
Answer: Option B

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