
When ribosome encounters a stop codon in the mRNA, during translation, which one of the following binds to the stop codon?

Important Questions on Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells.

In the following passage there are blanks, each of which has been numbered. There are questions given below the passage and for each question, four words are suggested, one of which fits the blank appropriately. Find out the appropriate word in each case.
Whenever I go into a bank, I feel scared. Everybody and everything that I see there (1) ____ me. As for the manager the sight (2) ____ him simply terrifies me and (3) ____ me want to runaway (4) _____ I can. As soon as I (5) ____ the door of the bank I lose my head (6) ____ when I try to do any (7) ____ there, I behave like an idiot. I cannot explain (8) ____ for this but that is how it (9) ____ has been that is how it is (10) ____.
Select the most appropriate option for blank No. 10.



A) There are few uncatalyzed metabolic conversions in living system like protein degradation.
B) Study of energy conversion in the living cells is called Bioenergetics.
C) In DNA, each step of nucleotide pair will turn .
D) The first amino acid in a protein chain is called terminal amino acid.

The sequence of a double stranded DNA, which produces a pentapeptide is given below:
The correct mRNA sequence corresponding to the pentapeptide is







Column – I | Column – II | ||
a. | Fibrinogen | i. | Osmotic balance |
b. | Globulin | Ii. | Blood clotting |
c. | Albumin | iii. | Defense mechanism |






How many peptide bonds will be formed in the polypeptide chain in the given diagram of protein synthesis?



