Rennin used in cheese industry is

  • A

    Antibiotic

  • B

    Alkaloid

  • C

    Enzyme

  • D

    Inhibitor

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Grafting between two different species is

Consider the following statements about insulin

$I$. Human insulin is made-up of $51$ amino acids arranged in two polypeptide chains

$II$. The two polypeptide chains are interconnected by two disulphide bridges

$III$. In mammals including humans, insulin is synthesized as a pro-hormone, which contains an extra stretch called the Cpeptide

$IV$. $C-$peptide is not present in the mature insulin

Which of the statements given above are correct?

$A$ nutritionally wild type organism, which does not required any additional growth supplement is known as

Consider the following statements

$I$. Flavr savr is a genetically modified tomato, which remains fresh and retains its flavour much longer than the normal tomato due to blocking of synthesis of fruit softening enzyme polygalacturonase

$II$. Recently, the $US$ Government has patented the Indian 'basmati' rice as Rice-tec

$III$. Viruses, bacteria and some other harmful organisms can be used as bioweapons in biological warfare

Which of the statements given above are correct?

Match the following columns and select the correct option.

Column $- I$ Column $- II$
$(a)$ Bt cotton $(i)$ Gene therapy
$(b)$ Adenosine deaminase deficiency $(ii)$ Cellular defence
$(c)$ $RNAi$ $(iii)$ Detection of $HIV$ infection
$(d)$ $PC R$ $(iv)$ Bacillus thuringiensis

$(a)\quad(b)\quad(c)\quad(d)$

  • [NEET 2020]