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Consider the following statements regarding genetic code and choose the correct answer:
1. The genetic code is degenerate
2. In all amino acids the first two bases are the same in all the codons that represent a particular amino acid
3. The number of codons an amino acid can claim is proportional to the frequency of the amino acid in proteins
4. Amino acids with codons ending in U or A also have codons ending in C or G respectively
Mineral acids are stronger acids than carboxylic acids because (i) Mineral acids are completely ionised. (ii) Carboxylic acids are completely ionised. (iii) Mineral acids are partially ionised. (iv) Carboxylic acids are partially ionised.
In the question below is given a statement followed by two courses of action numbered I and II. On the basis of the information given in the statement to be true, then decide which of the suggested courses of action logically follow(s) for pursuing. Statement: India has been constantly being attacked by militants across the border of neighboring country.  Course of action: I. India should engage into war with the neighboring country.  II. India should warn the neighboring country to prevent the militants from operating across the border. 
Given below are quantities named A,B and C. Based on the given information, you have to determine the relation between the quantities. You should use the given data and your knowledge of mathematics to choose among the possible answer. Akash’s present age is six years less than Badshah’s age after nine years. The ratio of present age of Badshahand RAFTAAR is 5:9. Raftaar is 21 years younger than Denny and Denny is three years older than Honey. Square of the Honey’s present age is 1350 more than 15 times of Honey’s present age? Quantity A: What is the difference between AKASH’s present age and HONEY’s age after 16 years? Quantity B: After 6 years Mankirat’s age is twice that of Akash’s present age. Diljeet’s present age is 3.5 times of 25% of sum of present age of Mankirat and A. What is the present age of Diljeet? Quantity C: Twice of A’s present age is eight years more than that of Babbu’spresent age, then find the Babbu’s present age?
Proteins are made up of amino acids. These amino acids are linked together by which of the following bonds?
The common amino acids are also called as alpha-amino acids because they contain their amino group attached to the alpha carbon.
Analysis of a hexapeptide using enzymatic cleavage reveals the following result:
• Amino acid composition of the peptide is: 2R, A, V, S, Y
• Trypsin digestion yields two fragments and the compositions are: (R, A, V) and (R, S, Y)
• Chymotrypsin digestion yields two fragments and the compositions are: (A, R, V, Y) and (R, S)
• Digestion with carboxypeptidase A yields no cleavage product.
Given: Trypsin cleaves at carboxyl side of R. Chymotrypsin cleaves at carboxyl side of Y. Carboxypeptidase A cleaves at amino side of the C-terminal amino acid (except R and K) of the peptide.
The correct amino acid sequence of the peptide is:
The peptide formation involves two amino acids covalently joined together between the carboxyl group of one amino acid and the amino group of another.
Which of the following statements about acids are correct? (i) All compounds containing hydrogen are acidic. (ii) Acids generate H+ ions in aqueous solution. (iii) Aqueous solution of acids change the colour of turmeric into red. (iv) Aqueous solution of acids conduct electricity.
Natural proteins are composed primarily of 20 α-amino acids. Which one of the following statements is true for any of these amino acids in a solution of pH 1.5?