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

Arrange the following in the order of their occurrance.
(A) Spermatids are transformed into spermatozoa
(B) Spermatogonia are multiplied by mitotic division
(C) Sperms are released from seminiferous tubules by the process of
spermiation
(D) Sperm heads are embedded in sertoli cells
Choose the correct answer from the options given below:

Which of the following disease is completely curable if detected early?

Read the following paragraph and answer the given questions.
Cancer detection is based on biopsy and histopathological studies. Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs. Do you know why mother's milk is considered very essential for the new-born infant? The yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. Different species of Plasmodium (P. vivax, P. malaria and P. falciparum) are responsible for different types of malaria. Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal. The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Drugs like barbiturates, amphetamines, benzodiazepines, and other similar drugs, that are normally used as medicines to help patients cope with mental illnesses like depression and insomnia, are often abused. Morphine is a very effective sedative and painkiller, and is very useful in patients who have undergone surgery..
The drug, which is very effective sedative and painkiller and useful for patients who have undergone surgery is -

Population density at time t + 1 is typically expressed as:
\(N t+1=N t+(\{B+I\}-\{D+E\})\) where \(B+I\),

Read the following passage carefully and answer the given questions
The earthworm is referred to as the farmer's friend. This is because they help in the breakdown of complex organic matter as well as in loosening of soil. Similarly, decomposers break down complex organic matter into inorganic substances like carbon dioxide, water and nutrients and the process is called decomposition. Dead plant remains such as leaves, bark, flowers and dead remains of animals, including fecal matter, constitute detritus, which is the raw material for decomposition. Some of the steps in the process of decomposition are fragmentation, catabolism, leaching, humification etc.
Process of accumulation of dark coloured amorphous substance is called:

Which of the following is caused due to substitution of glutamic acid to valine on 6th position of B-globin chain of Haemoglobin molecule ?

The correct statements for the activation energy of a reaction are:
(A) Activation energy is the energy difference between the activated complex and the total energy of the reactants.
(B) Higher is the activation energy, the faster is the rate of reaction.
(C) Catalyst increases the rate of the reaction by following the path of lower activation energy.
(D) In the Arrhenius equation, \(E_a\) corresponds to the activation energy
Choose the correct answer from the options given below :

Read the following paragraph carefully and answer the given questions.
Certain types of leukocytes (WBC) of our body like polymorpho-nuclear leukocytes (PMNL-neutrophils) and monocytes and natural killer (type of lymphocytes) in the blood as well as macrophages in tissues can phagocytose and destroy microbes. For determining the cause of allergy, the patient is exposed to or injected with very small doses of possible allergens, and the reactions studied. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Heroin, commonly called smack is chemically diacetylmorphine which is a white, odourless, bitter crystalline compound. This is obtained by acetylation of morphine. Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs. Different species of Plasmodium (P. vivax, P. malaria and P. falciparum) are responsible for different types of malaria. Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal.
Which of the following drugs are commonly used to quickly reduce the symptoms of allergy?

Arrange the given products formed during sewage treatment in correct sequence ?
(A) Biogas
(B) Activated sludge
(C) Flocs
(D) Primary sludge
Choose the correct options given below

Answer the question on the basis of passage given below :
One of the notable features of the transition element is the great variety of oxidation states it may show in its compounds. The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example exhibits all the oxidation states from +2 to +7. The lesser number of oxidation states at the extreme ends is either due to losing or sharing of few electrons (Sc, Ti) or too many d electrons of higher valence. Early in the first series scandium (II) is virtually unknown and titanium (IV) which is more stable than Ti (III) or Ti (II). On the other end, the only oxidation state of zinc is \(+ 2\).
Oxidation state of scandium is

Match List-I with List-II

List-I (Characteristics)	List-II (Examples)
(A) Symbiotic association with roots of leguminous plants	(I) Glomus
(B) Fixes atmospheric nitrogen while free living in the soil	(II) Rhizobium
(C) Symbiotic association of fungi and plants	(III) Anabaena
(D) Cyanobacteria which can fix atmospheric nitrogen	(IV) Azotobacte

Choose the correct answer from the options given below:

The general solution of the differential equation \(ydx + xdy = 0\) is: