Which of the following statements are correct about restriction enzymes?
(A). Each restriction endonuclease recognizes a specific palindromic nucleotide sequence in the DNA.
(B). Endonuclease removes nucleotides from the terminal end of the DNA.
(C). The first discovered restriction endonuclease is Hind II.
(D). Restriction enzymes belong to a larger class of enzyme polymerase.
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The ring worm is one of the most common infectious disease caused by:

Observe the figure and answer the following:

Match List I with List II

LIST I	LIST II
A. VI	I. Antipodals
B. III	II. Egg cell
C. IV	III. Filliform apparatus
D. I	IV. Central cell

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Two closely related species can co-exist indefinitely and violate the Gause's 'Competitive Exclusion Principle' by:

Identify the statements which hold true for cancer
(A) Cancerous cells do not show contact inhibition
(B) Chemotherapeutic drugs are used to kill cancerous cells
(C) Benign tumors can reach distant sites through blood
(D) Non-ionising radiations can also cause cancer
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There are two kinds of nucleases - exonucleases and endonucleases. Exonucleases remove nucleotides from the ends of the DNA whereas, endonucleases make cuts at specific positions within the DNA. The cutting of DNA by restriction endonucleases results in the fragments of DNA. These fragments can be separated by a technique known as gel electrophoresis. Since DNA fragments are negatively charged molecules they can be separated by forcing them to move towards the anode under an electric field through a medium/matrix. Small volume cultures cannot yield appreciable quantities of products. To produce in large quantities, the development of bioreactors, where large volumes (100 - 1000 litres) of culture can be processed, was required. Thus, bioreactors can be thought of as vessels in which raw materials are biologically converted into specific products, individual enzymes, etc., using microbial plant, animal or human cells. PCR stands for Polymerase Chain Reaction. In this reaction, multiple copies of the gene (or DNA) of interest are synthesised in vitro using two sets of primers (small chemically synthesised oligonucleotides that are complementary to the regions of DNA) and the enzyme DNA polymerase.
Identify the correct enzyme to release the DNA from the fungal cells.?

Which of the following nitrogenous base is NOT present in RNA ?

Select the steps of PCR technique from the following: DU Buddy
A. Primer synthesis
B. Primer annealing
C. DNA denaturation
D. Primer extension
E. DNA cleavage
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The solubility of a gas in a liquid

Which of the following is NOT a cause of biodiversity loss due to human activities?

The matrix \(X\) in the equation \(A X=B\), such that \(A=\left[\begin{array}{ll}1 & 3 \\ 0 & 2\end{array}\right]\) and \(B=\left[\begin{array}{cc}1 & -1 \\ 0 & 2\end{array}\right]\) is given by

The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap for the semiconductor is :

Which one of the followings cells are attacked by HIV?