Net primary productivity is the:

Read the passage carefully and answer the questions based on the passage:
Species diversity on earth is not uniformly distributed. It is generally highest in the tropics and decreases towards the poles.Earth's fossil history reveals the incidences of mass extinctions in the past. Earth's rich biodiversity is vital for the very survival of mankind. It is believed that communities with high diversity tend to be less variable and more productive. The reasons of conserving biodiversity are narrowly utilitarian, broadly utilitarian and ethical. Biodiversity conservation may be in-situ as well as ex-situ.
Which of the following is not included in in-situ conservation?

Read the Passage carefully and answer the the questions
Insulin consists of two short polypeptide chains : chain A and chain B, that are linked together by disulphide bridges. The first clinical gene therapy was given in 1990 to a 4-year old girl with adenosine deaminase (ADA) deficiency. This enzyme is crucial for the immune system to function. Recombinant DNA technology, Polymerase Chain Reaction (PCR) and Enzyme Linked Immuno-sorbent Assay (ELISA) are some of the techniques that serve the purpose of early diagnosis of diseases. Transgenic animals that produce useful biological products can be created by the introduction of the portion of DNA (or genes) which codes for a particular product such as human protein (α-1-antitrypsin) used to treat emphysema. Biopiracy is the term used to refer to the use of bio-resources by multinational companies and other organisations without proper authorisation from the countries and people concerned without compensatory payment.
In 1997, an American company got patent rights on Basmati rice through the US Patent and Trademark Office. This allowed the company to sell a ‘new’ variety of bvasnmati, in the US and abroad. This ‘new’ variety of Basmati had actually been derived from Indian farmer's varieties.. Indiian Basmati was crossed with semi-dwarf varieties and claimed as an invention or a novelty. This is a case of :

Which one of the following diagnostic techniques is based on the principle of antigen-antibody interaction?

The karyotype of a person with Turner's syndrome is:

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F\(_1\) generation all pink flowers were obtained. When pink flowers were self crossed, F\(_2\) generation showed white, red and pink flowers.
Choose the correct statements for this case:
(A) This experiment does not follow the Principle of Dominance.
(B) Pink colour in F\(_1\) is due to incomplete dominance.
(C) Ratio of F\(_2\) is 1 (red): 2 (pink): 1 (white).
(D) Law of segregation does not apply in this case.
Choose the correct answer from the options given below:

Which of the following enzymes join the sticky ends in recombinant DNA technology?

Electric potential at any point \(V=-(\sqrt{23} x+4 y+5 z)\), then magnitude of electric field is

Ethyl bromide is converted to succinic acid by using the following reagents in steps:
 A. \(KCN\)
B. \(Br_2\)
C. \(KOH\ (alc.)\)
D. \(H_2O/H^+\)
Choose the correct sequence of conversion:

A parallel combination of three resistors takes a current of 7.5 A from a 30 V battery.
If the resistances of two resistors are \( 12 \text{ } \Omega \) and \( 10 \text{ } \Omega \), then the resistance of the third resistor is:

Two slits 0.1 mm apart with screen 2 m away produce fringe separation with 500 nm light. The separation is :

Kinetic energies of four particles a, b, c, d of equal masses are given below. Arrange them in order of their decreasing de-Broglie wavelengths.
(A) \((KE)_a = 1 \text{ eV}\)
(B) \((KE)_b = 0.01 \text{ eV}\)
(C) \((KE)_c = 4 \text{ eV}\)
(D) \((KE)_d = 16 \text{ eV}\)
Choose the correct answer from the options given below:

Which of the following are correct?
(A) The probability curve in t-distribution is symmetric about the line \(t =0\).
(B) t-axis is an asymptote of the curve.
(C) The variable t of t-distribution ranges from \(-\infty\) to \(\infty\).
(D) As the number of degrees of freedom increases, the t-distribution curve moves closer to the binomial distribution.
Choose the correct answer from the options given below :