Plasma genes are present in:
A) Chloroplasts
B) Mitochondria
C) Both of the above
D) Ribosomes
Which of the following chemical mutagens affects only replicating DNA?
A) Acridine dye
B) Alkylating agent
C) Deaminating agent
D) Base analog
Damage and errors in DNA cause:
A) Mutation
B) DNA repair
C) Translation
D) Transcription
Quantitative character is also called:
A) Polygenic character
B) Minor gene character
C) Less stable character
D) All of these
Mutation theory of evolution was proposed by:
A) C.B. Bridges
B) H.J. Muller
C) Hugo de Vries
D) C. Auerbach
X-rays were discovered by:
A) Muller
B) Stadler
C) Roentgen
D) Curie
Mutation has which of the following characteristics?
A) Recessive and harmful
B) Random and recurrent
C) Show pleiotropy
D) All of these
Which of the following is/are correct about mutations?
A) They are recurrent
B) They are random
C) They are induced
D) All of these
Crop improvement can utilize which of the following mutations?
A) Vital
B) Sub-vital
C) Lethal
D) Sub-lethal
Which of the following is non-ionizing radiation?
A) Beta rays
B) Gamma rays
C) Neutron
D) None of these

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