Which of the following is a complementary sequence of 5' GAATTC ---- 3'?

The greatest biodiversity on the earth is seen in :

Which one of the following techniques is most appropriate where the female cannot produce an ovum but can provide the environment for the development of embryo?

Arrange the events of dicot embryo development in the correct sequence:
(A) Formation of heart-shaped embryo
(B) Formation of mature dicot embryo
(C) Formation of zygote
(D) Formation of globular embryo

If 50000 J energy available to primary producer, then energy available to tertiary consumer will be:

The characteristics of Baculoviruses are:
(A) They are used as biological control agents.
(B) They are excellent candidates for species-specific, narrow spectrum insecticidal application.
(C) They are excellent candidates for species-specific, broad spectrum insecticidal application.
(D) No negative impacts on plants, animals, birds, fishes and other non-targeted insects.
Choose the correct answer from the options given below:

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.
Which one of the following is not used for detection of cancer?

hen a mixture of \(K _2 Cr _2 O _7\) and NaCl is warmed with concentrated \(H _2 SO _4\), red vapours of \((A)\) are evolved, which turn NaOH yellowish due to formation of compound (B). A and B respectively are:

The electric field and magnetic field of a plane electromagnetic wave propagating in vacuum are expressed as
\(E_x=E_0 \sin (k z-\omega t)\)
\(B_y=B_0 \sin (k z-\omega t)\)
Which of the following statements are correct?
(A). The wave is propagating along the z- direction.
(B). The electric field Ex and magnetic field By are perpendicular to each other and perpendicular to the z direction.
(C) The electric and magnetic fields Ex and By are perpendicular to each other, and parallel to the direction of propagation.
(D) k is related to the wave length À of the wave by the usual equation \(k = A / 2 Tt\)
Choose the correct answer from the options given below:

If the area of a triangle with vertices \((-3,0),(3,0)\) and \((0, k)\) is 9 sq. units, then \(k\) equals

A relation \(R\) in the set \(A=\{1,2,3,4\}\) is given by \(R=\{(1,1),(2,2),(1,2),(2,3),(3,4),(4,4),(1,3),(2,4),(1,4)\}\) is

With reference to sampling, which of the following are correct?
(A) Simple random sampling is probability sampling
(B) Snow-ball sampling is non-probability sampling
(C) Stratified sampling is probability sampling
(D) Cluster sampling is non-probability sampling
Choose the correct answer from the options given below:

Ribonuclease make cuts in