Biomolecules

The total number of carbon atoms present in tyrosine, an amino acid, is .

DNA molecule contains 4 bases whose structure are shown below. One of the structures is not correct, identify the incorrect base structure.

1. [figure]
2. [figure]
3. [figure]
4. [figure]

The incorrect statements regarding enzymes are : Choose the correct answer from the option given below :

1. (B) and (D)
2. (A), (B) and (C)
3. (B) and (C)
4. (B), (C) and (D)

Which of the following gives a positive test with ninhydrin ?

1. Polyvinyl chloride
2. Cellulose
3. Egg albumin
4. Starch

Coagulation of egg, on heating is because of :

1. Denaturation of protein occurs
2. Biological property of protein remains unchanged
3. Breaking of the peptide linkage in the primary structure of protein occurs
4. The secondary structure of protein remains unchanged

Which of the following is the correct structure of L-Glucose?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Match List I with List II Choose the correct answer from the options given below:

1. A-III, B-IV, C-II, D-I
2. A-IV, B-III, C-I, D-II
3. A-III, B-IV, C-I, D-II
4. A-IV, B-III, C-II, D-I

If one strand of a DNA has the sequence ATGCTTCA, sequence of the bases in complementary strand is :

1. CATTAGCT
2. TACGAAGT
3. ATGCGACT
4. GTACTTAC

The number of tripeptides formed by three different amino acids using each amino acid once is .

Match List I with List II

1. A-II, B-IV, C-III, D-I
2. A-III, B-II, C-I, D-IV
3. A-IV, B-I, C-III, D-II
4. A-I, B-IV, C-III, D-II