NAT I Medical Biology With Answers

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NAT I Medical Biology

Sr. # Questions Answers Choice
1 DNA and RNA molecules are made up of repeating unites called Nucleosides Nucleotides Phosphate group Nitrogenous bases
2 Which of the following component DNA contains Nitrogen Group Five-carbon sugar Nitrogen containing bases All of above
3 Highly condensed portion of chromatin is called Euchromatin Heterochromatin Chromatin All of above
4 Every 200 nucleotide the DNA duplex is coiled around a core of eight histones proteins forming a complex known as Nucleoside Nucleosome Ecdysone Globulin
5 The chromosomes are made up of DNA + protein RNA + lipid DNa + carbohydrate RNA + protein
6 The % of protein in case of chromosomes is 100% 80% 60% 20%
7 The frog has number of chromosomes 46 13 26 40
8 Penicillium a fungus has only______pair of chromosomes 1 14 23 3
9 Chromosomes are thread like structure that appear inside the______at the time of cell division Cytoplasm Nucleus Mitochondria None
10 Growth effected by many factors Ultraviolet rays Cathode rays Anode ray Gamma rays
11 Cell division number is increased by increasing the Intensity of light Quality of light Quantity of light Colours of light
12 For maximum growth the optimum temperature is 0 - 35<sup>o</sup>C 5- 10<sup>o</sup>C 25-30<sup>o</sup>C 0- 45<sup>o</sup>C
13 Which one is not of the four phases of growth of multicellular plants Cell division Zone of elongation Maturation Differentiation
14 Vascular and cork cambiums are examples of Lateral meristem Intercalary meristem Apical meristem None of above
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