Match
List-I (Mutants described by de Vries) with
List-II (Characters) and select the correct answer:
List-I List-II
a. Progressive species
1. Plants which did not breed true but produced mutants like the parent
b. Regressive species
2. Species with weak structures which will become extinct ultimately
c. Degressive species
3. Species with loss of some characters
d. Inconstant species
4. Species with additional characters
A. a-4, b-3, c-2, d-1
B. a-4, b-2, c-1, d-3
C. a-4, b-2, c-3, d-1
D. a-2, b-3, c-4, d-1
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Study the following statements.
A. 1 and 2
B. 2 and 3
C. 1, 2 and 3
D. None of the above
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Consider the following statements.
A. Only 1
B. Only 2
C. 1 and 2
D. None of these
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Coacervates belongs to the category of
A. cyanobacteria
B. protozoans
C. molecular aggregates with lipid bilayer
D. molecular aggregate lack definite lipid membrane
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Among living organisms, which one of the following is the most responsible factor for bringing about the origin of a new species?
A. Isolation
B. Mutation
C. Natural selection
D. Sexual reproduction
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Consider the following statements regarding the embryological evidences for evolution and choose the correct answer:
A. Only 2, 3 and 4 are true
B. Only 1, 2, 3 and 4 are true
C. Only 3, 4 and 5 are true
D. Only 2, 3, 4 and 5 are true
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Which of the following together form a nucleotide?
A. Deoxyribose and nitrogenous base
B. Nitrogenous base, phosphate and a keto group
C. Nitrogenous base, phosphate and deoxyribose
D. Nitrogenous base and phosphate
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Darwin believed that the certain parts of the body get larger through the generation. They
A. are used more extensively than other parts
B. contribute to greater reproductive success
C. are predetermined to do so
D. are most similar to God's performance
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Haemophilia is mostly associated with
A. labourers
B. royal families
C. miners
D. sportsmen
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According to recent proof, the life on earth emerged approximately
A. before 20,000 years
B. before 2,00,000 years
C. before 20,0000 years
D. before 2,000,000,000 years
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Match the following columns.
Column I Column II
a. Genetic drift
1. Change in the population's allele frequency due to chance alone
b. Natural selection
2. Difference in survival individuals
c. Gene flow
3. Immigration or emigration changes the allele frequency
d. Mutation
4. Source of the new alleles
A. a-1, b-2, c-3, d-4
B. a-1, b-2, c-4, d-3
C. a-1, b-4, c-2, d-3
D. a-4, b-2, c-1, d-3
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The RNA polymerase at the Ori C site of replication is called
A. Gyrase
B. Primase
C. Polymerase
D. Reductase
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The term palindromic DNA was first used by
A. Watson and Crick
B. G. A. Rodley
C. Britten
D. Wilson and Thomas
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The 'Theory of Evolution' was put forward by
A. Louis Pasteur
B. Aristotle
C. Gregor Mendel
D. Charles Darwin
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The first macromolecules to be originated during prebiotic molecular evolution are
A. Phospholipids
B. Lipoproteins
C. Carbohydrates
D. Proteins
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S. W. Fox has synthesized polypeptides by heating a mixture of amino acids to 160°C to 210°C for several hours which he called
A. Peptinoids
B. Proteinoids
C. Protocells
D. None of the above
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Coenozoic era is known as an age of
A. amphibians and lycopods
B. marine invertebrates
C. reptiles and gymnosperms
D. mammals and modern flora
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Differentiation of somatic tissues produces artificial embryos which are called
A. Nucleoids
B. Embryoids
C. Celluloids
D. Explants
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Study of newly born up to the age of 3 months is called
A. chorology
B. conchology
C. nematology
D. neonatology
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In a non-overlapping genetic code
A. Six nucleotides would code for two amino acids
B. Six nucleotides would code for four amino acids
C. Four nucleotides would code for two amino acids
D. Four nucleotides would code for one amino acid
Select an option to see the answer and solution.
