The initial idea of triplet nature of codon was proposed by:

Arrange the trophic levels in an order from lowest to highest in a terrestrial food chain:
(A) Wolf
(B) Grass
(C) Cow
(D) Lion
Choose the correct answer from the options given below:

Read the following passage carefully.
Restriction enzyme
Restriction enzymes cut the strand of DNA a little away from the center of the palindrome sites, but between the same two bases on the opposite strands. This leaves single stranded portions at the ends. There are overhanging stretches called sticky ends on each strand. These are named so because they form hydrogen bonds with their complementary cut counterparts. This stickiness of the ends facilitates the action of the enzyme DNA ligase. The word palindromes refer to group of letters that forms the same words when read both forward and backward. Restriction endonucleases are used in genetic engineering as molecular scissors.
Palindromes are:

The backbone of a polynucleotide chain is formed by:

Which one of the following disorders is a sex linked recessive disease?

The symptoms of Elephantiasis :
(A) Inflammation of lower limb
(B) Scaly lesions on scalp
(C) Anaemia and blockage of intestinal passage
(D) Gross deformities of genital organs
Choose the correct answer from the options given below :

Match List - I with List - II.

List - I	List - II
(A) Physical barriers	(I) Acid in stomach, saliva in mouth and tears in eyes
(B) Cytokine barriers	(II) PMNL-neutrophils and monocytes
(C) Cellular barriers	(III) Skin on body, mucus coating of epithelium which lines respiratory tract
(D) Physiological barriers	(IV) Interferons

Choose the correct answer from the options given below :

Match List-l with List-II

List-l	List-II
A. \(CH _3 CHO \xrightarrow{773 K} CH _4+ CO\)	I. Zero order
B. \(2 NH _3 \xrightarrow{ Pt } N _2+3 H _2\)	II. Carbolic acid
C. \(H _2+ Br _2 \rightarrow 2 HBr\)	III. 1.5
D. \(SO _2 Cl _2 \rightarrow SO _2+ Cl _2\)	IV. First order

Choose the correct answer from the options given below :

If the function \(f(x)=x^2+k x+7\) is strictly increasing in the interval [-2, 2], then

The angle between the straight lines \(\frac{x+4}{2}=\frac{y+5}{5}=\frac{z+6}{3}\) and \(\frac{x-4}{10}=\frac{y-5}{2}=\frac{z-6}{-10}\) is:

Identify the incorrect feature of human genome.

Which one of the following is not a method of in-situ conservation of biodiversity?

The rate of a chemical reaction doubled for every 10°C rise in temperature. If the temperature is raised by 50°C, the rate of reaction will be