Which of the following can be classified as broadly utilitarian reason for biodiversity conservation?

Read the paragraph and answer the question.
Broadly, genetic disorders may be grouped into two categories - Mendelian disorders and Chromosomal disorders. Mendelian disorders are mainly determined by alteration or mutation in the single gene. These disorders are transmitted to the offspring on the same lines as we have studied in the principle of inheritance. The trait may also be linked to the sex chromosome as in case of haemophilia. It is evident that this X-linked recessive trait shows transmission from carrier female of male progeny.
What is the probability of having a haemophilic child to a carrier mother and a normal father ?

Meiotic division of the secondary oocyte takes place in the:

Identify the incorrect statements from the following:
A. Phenylketonuria is an autosomal dominant trait.
B. Haemophilia is a sex linked recessive disease.
C. Thalassemia is an autosomal linked recessive blood disease.
D. Colour blindness is an autosomal linked recessive disorder.
Choose the correct answer from the options given below:

In RNA interference (RNAi) the genes are silenced using:

If the solar energy available to a particular ecosystem is 1,000,000 J. What will be the energy available at the 2nd trophic level in the food chain?

In a country, at any time, the population has the same number of youngs and mature ones. What type of growth does it reflect?

A person has set up a sinking fund in order to have Rs. 10,00,000 after 10 years for his child education. The amount should put bi-annually into account paying 5 % per annum compounded semi-annually is:
[Given \((1.025)^{20}=1.6386\)]

Name the following reaction.
\(ArN_2^{+} X^{-} \xrightarrow{Cu / HBr} ArBr+N_2+CuX \)

Match List - I with List - II.

List - I	List - II
(A) Plasmid of Salmonella	(I) Join foreign DNA to plasmid
(B) Restriction enzymes	(II) Insertional inactivation
(C) Ligases	(III) Construction of \(1^{s t}\) recombinant DNA
(D) \(\beta\)-galactosidase	(IV) Molecular scissors

Choose the correct answer from the options given below:

If two thin convex lenses are kept in contact, the focal length of the combination is :

Let \(N\) be set of natural numbers, then the function \(f : N \rightarrow N\), defined by
\(f(n)=\left\{\begin{array}{ll}\frac{n+1}{2} & ,\text { if } n \text { is odd } \\ \frac{n}{2} & , \text { if } n \text { is even }\end{array}\right.\) is

A boat can row at the speed of 16 km/hr in still water. If the river is flowing at 8 km/hr, and it takes 8 hours for a round trip, then the distance between the two places is :