The step 'B' in the figure is called as:

Which of the following is not made by fermentation?

Identify the statements which hold true for Phenylketonuria.
(A) Phenylketonuria is a sex linked disorder
(B) Phenylpyruvic acid is accumulated and converted to phenylalanine
(C) It is caused by mutation in a pleiotropic gene
(D) The affected individual lacks enzyme phenylalanine hydroxylase
Choose the correct answer from the options given below:

Match List I with List II

List I	List ll
(A) hPL	(I) Maternal pituitary
(B) Relaxin	(II) Placenta
(C) Oxytocin	(III) Thyroid
(D) Thyroxine	(IV) Ovary

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Arrange the following hormones involved in correct sequence during menstrual cycle?
(A) Estrogen
(B) Progesterone
(C) FSH
(D) LH
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Identify the role of deoxyribonucleoside triphosphates in DNA replication?

Read the passage and answer the question given below.
When a host is exposed to antigens, which may be in the form of living or dead microbes or other proteins, antibodies are produced in the host body. This type of immunity is called active immunity. Active immunity is slow and takes time to give its full effective response. Injecting the microbes deliberately during immunisation or infectious organisms gaining access into body during natural infection induce active immunity. When antibodies are directly given to protect the body against foreign agents, it is called passive immunity.
Match List I with List II

LIST I	LIST II
A. Physical Barrier	I. Saliva
B. Cellular Barrier	II. Interferons
C. Physiological Barrier	III. Skin
D. Cytokine Barrier	IV. Polymorpho-nuclear leukocytes

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Ishita is rowing a boat. She takes 24 hours to row 72 km against the stream and she takes 9 hours to return to the starting point in the direction of the stream. The speed of the boat in still water is :

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

Which of the following statements are true?
(A) The potential energy for a system of two negative point charges is negative
(B) Electrostatic force is a conservative force
(C) Negative potential energy between two charges implies that the force between them is repulsive
(D) Electrostatic potential energy is a scalar quantity
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The general solution of the differential equation \(\frac{d y}{d x}=e^{x+y}\) is :

Which of the following can be used as a froth stabiliser during ore concentration?

Two point charges \( q_1 = 36 \text{ }\mu\text{C} \) and \( q_2 = -9 \text{ }\mu\text{C} \) are placed at a distance of 30 cm. The distance from \( q_1 \) where the net electric field is zero, will be :