Best 3 type general science Question with answer

 

What is Biotechnology ?

  Ans-Biotechnology is a field of applied biology that involves the use of living things in                                    engineering,technology,medicine and other usuful applications.

       *   Genetic Engineering insertion of a foreign gene fragment into another DNA molecule to                          produce   DNA clones.

       *  Gene Therapy it is the insertion of genes into an individual cells and tissue to treat diseases                     especially hereditary diseases.

 

What is Test Tube Baby ?

  Ans - Test tube baby is afusion of ovum and sperm outside body followed by implantation in uterus at              32 celled stage and forther normal devolpment birth.

        * The IVF (In Vitro Fertilisation) technology is a born to childless couples.

        * First attempt to produce a test tube baby was made by an Italian scientist Dr. Petrucci in                           1959,But this human embryo survived for only 29 days.

        * The Worlds first test tube baby (a baby girl) named as Louise joy brown was born on 25th                        july,1978 in Great Britain.

        *  India's first test tube baby was born in mumbai on 6th august 1986.Her name is Kanupriya.

What is Cloning ?

   Ans - Cloning is biology is the process of producing similar populationsof genetically identical                         individuals that occurs in nature when organisms such as bacteria, insects or plants reproduce                 asexually.

           *  Dolly a sheep, the first mammal clone was devolped by Dr Ian Wilmut,UK.

What is Bt Crops ?

   Ans - Crop plants that contain genes for Bt toxins.Bt toxin gene has been cloned from the bacteria                    and been expressed in plants to provide resistance from insects without the need of insectisides              eg-Bt-cotton (first GM crop),Bt-corn, golden rice etc.