The major steps of prebiotic molecular evolution include
A. Accumulation of a secondary atmosphere of NH3, CH4, H2O, H2, CO2 etc. of volcanic origin
B. Self assembly of polypeptides into protoproteinous protocells
C. Capture of ATP, pyrophosphate-or-phosphate utilizing mechanism
D. Capture of nucleic acid-synthesis mechanisms; appearance of ribosomes
Answer: Option A
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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