The three basic life history traits do no not include:
1. | Age-sex structure of the population |
2. | Age when reproduction begins |
3. | How often reproduction occurs |
4. | Number of offspring per reproductive episode |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. | They could separate combinations of molecules from the surroundings |
2. | They were able to reproduce |
3. | They were partially isolated from the surroundings |
4. | They could maintain an internal environment |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following would be an example of a population that can show the potential for rapid speciation?
1. | small in number but highly variable gene pool |
2. | large in number with large variations in the gene pool |
3. | sexual dimorphism amongst members |
4. | isolated inbred population |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn allele that reduces the fitness of organisms is found to decrease very rapidly in a population. Most likely this allele is:
1. recently mutated
2. rare
3. dominant
4. recessive
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe most likely reason for the development of resistance against pesticides in insects damaging a crop is
1. Genetic recombination
2. directed mutations
3. Acquired heritable changes.
4. Random mutations
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRandom genetic drift in a population probably results from
1. highly genetically variable individuals.
2. inbreeding within this population
3. constant low mutation rate
4. large population size
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyU238, the radioactive isotope of uranium, is very useful in absolute dating of rocks. It’s half life is about:
1. 4500 years
2. 4.5 million years
3. 45 million years
4. 4.6 billion years
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf a random mating population is in equilibrium, which of the following brings about a change in gene frequency in a non-directional manner?
1. Mutations
2. Random drift
3. Selection
4. Migration
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySpecies formation without branching of the evolutionary line of descent is called as:
1. anagenesis, or phyletic evolution
2. cladogenesis, or divergent evolution
3. convergent evolution
4. allopatry
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the famous experiment by Louis Pasteur, the straight and long-necked flasks served :
1. as the experimental setup
2. as a control
3. as a cohort
4. no useful purpose
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology