Consideer the following statements
I. sulphur is present in two amino acids cysteine and valine
II. Lower level of N,K,S and Mo causes inhibition of cell division.
III. Microbe that fix nitrogen in the roots of non-leguminous plants alums in frankia
IV. Denitrification is carried by bacteria Nitrosomonas and nitrobacter
Select the correct pair of statements.

Identify the correct statement (i) sulphur is essential for amino acids cystine and methionine (ii) low level of N , K ,S and Mo affect the cell division (iii) Non -leguminous plant Alnus which contain bacterium frankia (iv) Denitrification carrird out by nitrosomonas and nitrobacter .

Consider the following statements. The genetic codes said to be degenerate and universal, which means that, I. Amino acids may have more than one codon II. All amino acids have more than one codon. III. Codons are common for higher and lower organism IV. Codons are not found in bacteria

Consider the following statements about water pollutants. (I) Disease causing pollutants are called pathogens (II) They are bacteria and other organisms that enter water from domestic sewage and animal excreta. (III) Gastrointestinal diseases are caused by Streptococcus faecalis and Escherichia coli bacteria present in human excreta. Correct option(s) is // are.

Which of the following statement/s is/are and example of genetic engineering? I. Inserting a gene for human insulin production into bacteria. II. Selective breeding to produce cattle with high milk yields. III. Using methods like crop rotation with leguminous plants to increase the fertility of the soil. IV. Vegetative propagation and grafting are practised to ensure higher yield.

Which of the following statement/s is/are and example of genetic engineering? I. Inserting a gene for human insulin production into bacteria. II. Selective breeding to produce cattle with high milk yields. III. Using methods like crop rotation with leguminous plants to increase the fertility of the soil. IV. Vegetative propagation and grafting are practised to ensure higher yield.