Human Reproduction — BIOLOGY STD 12 Science — Question

$(i)$ Fleming, Chain and Florey were awarded the Nobel prize in $1945$
$(ii)$ Antibiotics have greatly improved our capacity to treat deadly diseases
$(iii)$ Penicillin was used to treat American soldiers wounded in World War I

Statement $I:$

Restriction endonucleases recognise specific sequence to cut DNA known as palindromic nucleotide sequence.

Statement $II:$

Restriction endonucleases cut the $DNA$ strand a little away from the centre of the palindromic site.

In the light of the above statements, choose the most

appropriate answer from the options given below :