WBJEE question papers with answers

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1 to Q.60 carry one mark each, for which only one option is correct. Any wrong answer will lead todeduction of 1/3 mark.
1.One molecule of triglyceride is produced using(A)One fatty acid and one glycerol(B)One fatty acid and three glycerols(C)Three fatty acids and three glycerols(D)Three fatty acids and one glycerol
Ans : (D)Hints :
One molecule of triglyceride is produced by three molecules of fatty acids and one molecule of glycerol.2.Glutenin is an important protein in (A)Potato(B)Wheat(C)Soybean(D)Spinach
Ans : (B)Hints :
Glutenin is a storage protein present in wheat3.Which one of the followings is enriched with a non-reducing sugar ?(A)Grapes(B)Germinating barley grains(C)Table sugar(D)Mother’s milk
Ans : (C)Hints :
Table sugar is sucrose which is a non-reducing sugar.4.Select the CORRECT statemnt elated o mitosis(A)Amount of DNA in the parnt cell is first halved and then distributed into two daughter cells(B)Amount of DNA in the parent cell is first doubled and then distributed into two daughter cells(C)Amount of DNA in the parent cell is first halved and then distributed into four daughter cells(D)Amount of DNA in the parent cell is first doubled and then distributed into four daughter cells
Ans : (B)
5. The frequency of crossing-over occurring between two genes located on the same chromosome depends on(A)Length of the chromosome(B)Position of the centromere(C)Activities of two genes(D)Distance between two genes
Ans : (D)Hints :
Frequency of crossing-over is directly proportional to the distance between two genes.6.Chlorophyll molecules are located in the(A)Thylakoid membrane(B)Thylakoid lumen(C)Stroma(D)Inner chloroplast membrane
Ans : (A)

WBJEE question papers with answers




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