Which of the following factors can influence Hardy-Weinberg equilibrium?
(A) Natural Selection
(B) Genetic recombination
(C) Gene flow
(D) Mutation
Choose the correct answer from the options given below:

Read the passage carefully and give the answers to the question :
India was amongst the first countries in the world to initiate action plans and programmes at a national level to attain total reproductive health as a social goal.
These programmes called 'family planning' were initiated in 1951 and were periodically assessed over the past decades. Improved programmes covering wider reproduction-related areas are currently in operation. Creating awareness among the people about various reproduction-related aspects and providing facilities and support for building up a reproductively healthy society are the major tasks under these programmes.
Which of the following is not a Sexually Transmitted Disease?

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.
Which bond forms on sticky end of each strand?

Which organism was used by T.H. Morgan for his experiments ?

Arrange the following steps in sequence of their occurance in the process of genetic modification of an organism.
(A) Cutting of desirable genes and vector DNA by molecular scissors.
(B) Introduction and maintenance of recombinant DNA in the host cell.
(C) Identification of DNA sequence with desirable gene.
(D) Linking of desirable genes with vector DNA.
Choose the correct answer from the options given below :

The construction of first rDNA was done using plasmid of :

Read the passage carefully to answer the questions given below
Some strains of Bacillus thuringiensis produce proteins that kill certain insects such as lepidopterans (tobacco budworm, armyworm), coleopterans (beetles) and dipterans (flies, mosquitoes). In Bacillus thuringiensis the toxin is coded by a gene crylAc named cry. There are a number of them, for example, the proteins encoded by the genes crylAc and cryllAb control the cotton bollworms, that of crylAb controls corn borer. Using conventional methods of diagnosis (serum and urine analysis, etc.) early detection is not possible. 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. 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. The disorder is caused due to the deletion of the gene for adenosine deaminase. RNAi takes place in all eukaryotic organisms as a method of cellular defense. This method involves silencing of a specific mRNA due to a complementary dsRNA molecule that binds to and prevents translation of the mRNA.
RNAi involves involves silencing of a specific mRNA due to a complementary__________ molecule that binds to and prevents translation of the mRNA.

The figure is showing the technique of gel electrophoresis. The matrix used in this technique is made out of:

What is the product(s) formed when toluene reacts with \(\mathrm{Cl}_2\) in presence of anhydrous \(\mathrm{AlCl}_3\) ?

Identify the substance that can undergo bio-magnification in a food chain.

The mass percentage of a component of a solution is defined as:

A simple random sample consists of three observations \(1,3,5\). The point estimate of the population standard deviation is :

The energy equivalent of 10 g of substance is: