UPSC  Biology

1. Inflammation of joints due to accumulation of uric acid crystals is called as

Gout Myasthenia gravis Osteoporosis Osteomalacia

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2. chromosomes are visible with chromatids at this phase of mitosis

Interphase Prophase Metaphase Anaphase

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3. Inheritance of ABO blood grouping is an example of

Dominance Codominance Incomplete dominance All of these

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4. In a dihybrid cross between RRYY and rryy parents, the number of RrYy genotypes in F2 generation will be

4 3 2 1

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5. Identify a 47, + 21 disorder from the following

Downs syndrome Turners syndrome Phenylketonuria Klinefelter's syndrome

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6. Uracil is present in RNA at the place of

Adenine Guanine Cytosine Thymine

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7. Copying genetic information from one strand of DNA into RNA is

Translation Transcription Transformation Transduction

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8. Millers closed flask contained

CH4 H2 NH3 and Water vapour All of these

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9. Change of frequency of alleles in a population results in evolution is proposed in

Darwins theory Lamarcks theory Hardy-Weinberg principle De Vries theory

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10. One of the following is the vestigial organ in human beings

Nictitating membrane Spleen Femur Tibia

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