In India,the first international meeting on biotechnology was held in which year?

Biotechnology and its applications include:
$1.$ Therapeutics
$2.$ Agriculture
$3.$ Diagnosis
$4.$ Bioremediation

Which of the following is used in biotechnology?

Which of the following is/are considered as application$(s)$ of biotechnology?
$I$. Waste treatment
$II$. Energy production
$III$. Bioremediation
$IV$. Processed food
$V$. Genetically modified crops for agriculture
$VI$. Diagnostics
$VII$. Therapeutics
Choose the correct option.

The transfer of the streptomycin resistance gene from $Nicotiana$ $tabacum$ to $Nicotiana$ $sylvestris$ was achieved through which method?

Read the following four statements and identify the two incorrect statements:
$(1)$ The first transgenic buffalo,Rosie,produced milk enriched with human alpha-lactalbumin.
$(2)$ $DNA$ is isolated from large molecules using restriction enzymes.
$(3)$ Downstream processing is a stage of $r$-$DNA$ technology.
$(4)$ Disarmed pathogen vectors are also used to transfer $r$-$DNA$ into the host.