NEET MODEL BIOLOGY 3

Q1)The genetic defect-adenosine deaminase (ADA) deficiency may be cured permanently by:

Correct! Wrong!

Q2)Infectious proteins are present in:

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Q3)Select the correct statement from the ones given below with respect to dihybrid cross:

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Q4)The genotype of a plant showing the dominant phenotype can be determined by:

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Q5)Which one of the following cannot be explained on the basis of Mendel's Law of Dominance?

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Q6)A person with unknown blood group under 72. ABO system has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid certificate of his own blood type offers for blood donation without delay. What would have been the type of blood group of the donor friend?

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Q7)Mutations can be induced with:

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Q8)When two unrelated individuals or lines are crossed, the per romance of Ft hybrid is often superior to both parents. This phenomenon is called:

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Q9)Which one of the following conditions correctly describes the manner of determining the sex in the given examples?

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Q10)A normal visioned man whose father was colour blind, marries a woman whose father was also colour blind. They have their first child as a daughter. What are the chances that this child would be colour blind.

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Q11)Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as

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Q12)What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?

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Q13)The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was

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Q14)Which one of the followings is also called Sewall Wright Effect?

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Q15)The idea of Natural selection as the fundamental process of evolutionary changes was reached

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Q16)Which one of the following statements is correct?

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Q17)Jurassic period of the Mesozoic era characterized by

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Q18)Flowering plants and first dinosaurs appear

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Q19)Organic compounds first evolved in earth required for origin of life were

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Q20)Analogous structures are

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Q21)An important evidence in favor of organic evolution is the occurrence of

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Q22)Which one of the following experiments suggests that simplest living organisms could not have originated spontaneously from nonliving matter

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Q23)Assertion: The earliest organisms that appeared on the earth were non-green and presumably anaerobes. Reason: The first autotrophic organisms were the chemo-autotrophs that never released oxygen.

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Q24)Assertion: Coacervates are believed to be the precursors of life. Reason: Coacervates were self-duplicating aggregates of proteins surrounded by lipid molecules.

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Q25)The tendency of population to remain in genetic equilibrium may be disturbed by

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Q26)A baby has been born with a small tail. It is the case exhibiting

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Q27)Homologous organs indicate the

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Q28)One of the important consequences of geographical isolation is:

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Q29)Coacervates were experimentally produced by______.

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Q30)What is meant by the term Darwin fitness?

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Q31)Diversification in plant life appeared:

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Q32)De Vries gave his mutation theory on organic evolution while working on -

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Q33)What is common to whale, seal and shark?

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Q34)Chemical reactions could have converted simple organic compounds into ______ for the origin of life.

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Q35)The concept of chemical evolution is based on

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Q36)The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called

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Q37)Variation in gene frequencies within populations can occur by chance rather than by natural selection. This is referred to as

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Q38)Fossils are most commonly preserved in

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Q39)Divergent evolution of a single group of organisms in a new environment is called ______.

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Q40)Darwin judged the fitness of an individual by

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Q41)According to Darwin, evolution is _______.

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Q42)In nature, the process by which different organisms evolve similar traits is called ______.

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Q43)Phylogenetic system of classification is based on

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Q44)Selective breeding of organisms (Animal husbandry and plant breeding programs) for specific desirable characteristics are examples of

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Q45)Tendrils in plants are an example of

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Q46)Small and spherical vessels, bounded by a membrane like layer of amino acids are

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Q47)Darwin’s Finches are an excellent example of

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Q48)In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of

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Q49)Which one of the followings is incorrect about genetic drift?

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Q50)Which of the aminoacids is not found in Miller’s experiment?

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NEET MODEL BIOLOGY 3
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