Both the strands of the DNA are joined by

1.Disulphide bond

2.Hydrogen bonds

3.Glycosidic bonds

4.phosphodiester bonds

Subtopic:  The DNA |
 82%
From NCERT
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Which of the following is the pitch of B-DNA

1.34Angstrom

2.34 nanometre

3.34 picometre

4.34 femtometre

Subtopic:  The DNA |
 86%
From NCERT
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Which model explains the double helix nature of DNA

1.Watson and Crick Model

2.Gene Battery Model

3.Sanger Sequencing

4.Both 1 and 3

Subtopic:  The DNA |
 96%
From NCERT
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Which of the following is the most abundant protein in the whole of the biosphere?

1.Collagen

2.Albumin

3.RUBISCO

4.Antibody

Subtopic:  Introduction to Proteins |
 91%
From NCERT
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Which of the following is present as a store house of energy in plant tissues?

1.Cellulose

2.Sucrose

3.Glycogen

4.Starch

Subtopic:  Carbohydrates: Starch & Glycogen |
 81%
From NCERT
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Which of the following is present as a store house of energy in animal tissues?

1.Cellulose

2.Sucrose

3.Glycogen

4.Starch

Subtopic:  Carbohydrates: Starch & Glycogen |
 92%
From NCERT
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Starch gives blue colour because of

1.It exists in globular form

2.I2 gets hold in helical form

3.It has blue colour pigment

4.All of the above

Subtopic:  Carbohydrates: Starch & Glycogen |
 79%
From NCERT
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Which of the following is not true about cellulose?

1.It cannot be digested by humans

2.It’s a polymer of β, D Glucose

3.It’s a branched polymer

4.It does not give blue colour with Iodine

Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 64%
From NCERT
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Proteins are ______ of amino acids

1.homopolymer

2.heteropolymer

3.Neither homopolymer nor heteropolymer

4.None of these

Subtopic:  Introduction to Proteins |
 92%
From NCERT
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Which of the following is responsible for the formation of primary polypeptide?

1.peptide bond

2.Hydrogen bonding

3.Di-sulphide bond

4.Ionic bond

Subtopic:  Zwitter ion & Peptide Bond |
 89%
From NCERT
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