Which of the following basic processes provide the genetic variability without which change cannot take place?
A. Natural selection, gene mutation and reproductive isolation
B. Gene mutation, reproductive isolation and genetic recombination
C. Genetic recombination, natural selection and gene mutation
D. Gene mutation, chromosomal aberrations and genetic recombination
Answer: Option D
This Question Belongs to Biology GK Chapter Wise >> Gentics And Evoloution
A piece of DNA molecule that can serve as a carrier for the gene to be cloned is called as a
A. Virus
B. Vector
C. DNA junk
D. Gene factor
A haploid organism contains only one set of chromosomes, and is said to be
A. Homozygous
B. Heterozygous
C. Hemizygous
D. Holozygous
Which of the following is the correct pair?
A. Darwin - Use and disuse of organs
B. de Vries - Mutation theory
C. Lamarck - Origin of life
D. Haldane - Law of heredity
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