Observe the given diagram representing global biodiversity and answer the question.

Global Bio-diversity
Among invertebrates, the order of species richness from low to high is:
(A) Insect
(B) Other animal group
(C) Molluscs
(D) Crustaceans
Choose the correct answer from the options given below:

Which one of the following tests would be recommended by the doctor to confirm typhoid ?

After the completion of replication, each DNA molecule will have one parental strand and one newly synthesized strand. This scheme is known as:

Which one of the following statements is not correct regarding the DNA?

Read the paragraph given below and answer the question.
Sutton and Boveri argued that the pairing and separation of a pair of chromosomes would lead to the segregation of a pair of factors they carried. Sutton united the knowledge of chromosomal segregation with Mendelian principles and called it the chromosomal theory of inheritance. Following this synthesis of ideas, experimental verification of the chromosomal theory of inheritance by Thomas Hunt Morgan and his colleagues, led to discovering the basis for the variation that sexual reproduction produced. Morgan worked with the tiny fruit files, which were found very suitable for such studies. They could be grown on simple synthetic medium in the laboratory. They complete their life cycle in a short span of time and a single mating could produce a large number of progeny flies. Also, there was a clear differentiation of the sexes the male and female flies are easily distinguishable. Also, it has many types of hereditary variations that can be seen with low power microscopes.
Which statement is incorrect with respect to Drosophila.

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 :

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`.
Some strains of `Bacillus thuringiensis` produce proteins that do not kill ceratin organisms -

Arrange the given geological periods according to their occurrence from oldest to latest order?
(A) Devonian
(B) Cretaceous
(C) Triassic
(D) Carboniferous
Choose the correct answer from the options given below:

There is a parallel plate capacitor of capacitance \( 3 \, \mu \text{F} \). The voltage between the plates is changing at the rate of 8 V/s. The displacement current is :

If \(x=e^y+e^y+\cdots\) to \(\infty, x>0\) then \(\frac{d^2 y}{d x^2}\) is:

Identify the Australian marsupials showing adaptive radiation.
(A) Sugar Glider
(B) Wolf
(C) Bandicoot
(D) Wombat
Choose the correct answer from the options given below :

The potential of a charged spherical conductor of radius r is 20V. The potential at a point r/4 from its center is:

If \(\Delta=\) equation \(\left|\begin{array}{lll}a_{11} & a_{12} & a_{13} \\ a_{21} & a_{22} & a_{23} \\ a_{31} & a_{32} & a_{33}\end{array}\right|\) and \(A_{i j}\) is the cofactor of \(a_{i j}\), then the value of \(\Delta\) is given by: