Identify the correct sequence of mature embryo formation from zygote.
(A) Heart-shaped embryo
(B) Globular embryo
(C) Proembryo
(D) Mature embryo
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Arrange the given steps for regulation of gene expression in correct sequence?
(A) Regulation of splicing
(B) Transport of mRNA from the nucleus to the cytoplasm
(C) Translation
(D) Formation of primary transcript (Transcription)
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The tropical Amazonian rain forest is located in:

During the process of spermatogenesis, the secondary spermatocytes
undergo ___________ division to produce ___________ spermatids

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 -

Which one of the following layers of microsporangium nourishes the developing pollen grains?

Nowadays, biofertilisers are available in the market. Select the correct statements regarding biofertilisers given below:
(A) Biofertilisers increase the soil fertility.
(B) Biofertilisers kill the pathogenic microbes
(C) Biofertilisers increase the iron content in the soil
(D) Biofertilisers increase the crop production.
(E) Excess use of biofertilisers causes water and soil pollution.
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Let \(A=\left[\begin{array}{cc}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta\end{array}\right]\) and \(I=\left[\begin{array}{ll}1 & 0 \\ 0 & 1\end{array}\right]\). If \(A^T+A=I\), then:

Wings of an insect and wings of a bird are :

Acetaldehyde on treatment with Fehling's solution gives a precipitate of

Match List-I With List-II

LIST – I	LIST – II
(A) \(S _{ N } 1\) Reaction	(I) vic-dibromides
(B) Bromination of alkenes	(II) gem-dihalides
(C) Alkylidene halides	(III) racemisation
(D) Elimination of HX from alkylhalide	(IV) Saytzeff rule

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A slit of width 'd' is illuminated by red light of wavelength 650 nm. What should be the value of slit width 'd' so that first minimum fall at an angle of diffraction of \(\frac{\pi}{6}\) ?

Which of the following is an example of auto-immune disease?