Which drug is an effective painkiller for patients who have undergone surgery?

Where are IUDs placed in the human female reproductive sytem for contraception?

Match List-l with List-ll

List-l (Birth control methods)	List-II (Features)
(A) Diaphragms	(I) Removal of vas deferens
(B) Lactational amenorrhea	(II) Increase phagocytosis of sperms
(C) Vasectomy	(III) Absence of menstrual cycle and ovulation following parturition
(D) IUDs	(IV) Cover the cervix and blocks the entry of sperm

Choose the correct answer from the options given below:

Read the following paragraph and answer the given questions.
Bio-fertilisers are organisms that enrich the nutrient quality of the soil like cyanobacteria, while there are organisms that help to control plant diseases and pests. The very familiar beetle, the ladybird and dragonflies are useful to get rid of aphids and mosquitoes, respectively. An example of microbial biocontrol agents that can be introduced to control butterfly caterpillars is certain bacteria, which are available in sachets in the form of dry spores. These spores are mixed with water and sprayed onto vulnerable plants. Trichoderma species that are very common in the root ecosystem, are very effective biocontrol agents of several plant pathogens.Baculoviruses attack insects and other arthropods. Usage of these viruses is desirable when an ecological sensitive area is being treated.
Which one of the following is not an advantage of Nucleopolyhedrovirus as biocontrol agents?

Arrange the steps involved in creating pest-resistant transgenic plants
using RNA interference (RNAi).
(A) Binding of complementary RNAs to form double-stranded RNA
(dsRNA).
(B) Formation of sense and antisense RNA in the host cells.
(C) Silencing of specific mRNA of the nematode.
(D) Introduction of nematode-specific genes into the host plant using
Agrobacterium vectors.
Choose the correct answer from the options given below:

A novel strategy to prevent infestation of roots of tobacco plant with the nematode Meloidegyne incognitia is :

Which one of the following structures is not the male sex accessory duct?

Bulb B1 is a 50 W bulb working on 100 V and Bulb B2 is a 200 W bulb also working on 100 V. The ratio of resistances of bulbs B1 to B2 is:

The speed of light in a medium depends on:

Which of the statements are correct about Thalassemia?
A. In ẞ Thalassemia, production of a globulin chain is affected and in a Thalassemia production of B globulin chain is affected.
B. a Thalassemia is controlled by two closely linked genes HBA1 and HBA2.
C. The genes HBA1 and HBA2 are located on chromosome 11 of each parent.
D. ẞ Thalassemia is controlled by a single gene HBB.
E. The gene HBB is located on chromosome 16 of each parent.
Choose the correct answer from the options given below:

In a hydrogen atom, an electron is moving in the \( n^{\text{th}} \) permitted orbit of radius \( r_n \). The wavelength associated with this electron is:

Two point charges + 200 \( \mu \)C are placed at a distance of 2 mm from each other in a uniform electric field of \( 10^5 \text{ N/C} \), such that the line joining the negative to positive charge makes an angle 30° with the field. The torque acting on the system is:

Let \(*\) be a binary operation on set \(Q\) of rational numbers given by \(a * b=a+b+a b\).
Then identity element is: