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The concept of chemical evolution is based on:
According to Hugo de Vries, the mechanism of evolution is:
A population of a species invades a new area. Which of the following condition will lead to adaptive radiation?
The similarity of bone structure in the forelimbs of many vertebrates is an example of:
The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia, and parts of Africa, with short stature, heavy eyebrows, retreating foreheads, large jaws with heavy teeth, stocky bodies, a lumbering gait, and stooped posture was:
In a population of 1000 individuals, 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is:
Which of the following had the smallest brain capacity?
Which of the following is the correct sequence of events in the origin of life? I: Formation of protobionts. II: Synthesis of organic monomers. III: Synthesis of organic polymers. IV: Formation of DNA-based genetic systems.
From his experiments, S.L. Miller produced amino acids by mixing which of the following in a closed flask?
Which of the following structure is homologous to the wing of a bird?
The flippers of the Penguins and Dolphins are the example of:
Embryological support for evolution was proposed by:
A high value of BOD (Biochemical Oxygen Demand) indicates that:
Read the following statement having two blanks (A and B): "A drug used for ______ (A)___ patients is obtained from a species of the organism ______ (B)___ ". The one correct option for the two blanks is: Blank-A Blank-B
Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.
Match List-I with List-II with respect to convergent evolution: List-I (Placental Mammals) A. Lemur B. Bobcat C. Anteater D. Flying squirrel List-II (Australian Marsupials) I. Flying phalanger II. Numbat III. Spotted cuscus IV. Tasmanian tiger cat
Match the following microorganism with the product they produce: Column I (a) Trichoderma polysporum (b) Monascus purpureus (c) Streptococcus (d) Saccharomyces cerevisiae Column II (i) Statins (ii) Cyclosporin A (iii) Ethanol (iv) Streptokinase
An organism used as a bio-fertilizer for raising soybean crop is:
Match List-I with List-II relating to microbes and their products: List-I (Microbes) A. Streptococcus B. Trichoderma polysporum C. Monascus purpureus D. Aspergillus niger List-II (Products) I. Citric acid II. Clot buster III. Cyclosporin A IV. Statins
Conversion of milk to curd improves its nutritional value by increasing the amount of?