Introduction

Three basic steps are required for making GMO are : I. Identification of DNA with a desirable gene . II. Introduction of identified DNA into the host . III. Maintenance of introduced DNA to its progeny . What is the correct sequence of involvement ?

Assertion: Introduction of alien species is responsible for extinction of indigenous species. Reason: Alien species have no natural predator. So they causes uncontrolled predation and donot show prudent nature.

There are three basic steps in genetically modifying an organism. Which of the following is wrong statement about the process ? (a) Identification of the DNA with desirable genes (b) Cleaving DNA segments with 'ligase' and joining them with endonuclease (c) Introduction of the identified DNA into the host (d) Maintenance of introduced DNA in the host and transfer of DNA to its progeny

There are three basic steps in creating genetically modified organisms. Arrange these steps in the correct sequence. (a.) Introduction of the identified DNA into the host (b.) Maintenance of introduced DNA in the host and transfer of the DNA to its progeny (c.) Identification of DNA with desirable genes

Reproductive health in society can be improved by (i) Introduction of sex education is schools (ii) Increased medical assistance (iii) Awareness about contraception and STDs (iv) Equal opportunities to male and female child (v) Encouraging myths and misconceptions

Remarkable increase in rice production from 35 million tonnes to 89-5 million tonnes during 1960-2000 was mainly due to (a) Improved semi-dwarf varieties (c) Introduction semi-dwarf varieties (c) Increased use of chemical fertilizers (d) Cultivation of wild varieties

The capacitance of a parallel plate capacitor with air as medium is 3 muF. with the introduction of a dielectric medium between the plates, the capacitance becomes 15mu F. The permittivity of the medium is

A thin glass plate of thickness t and refractive index mu is inserted between screen and one of the slits in a young's experiment. If the intensity at the centre of the screen is I, what was the intensity at the same point prior to the introduction of the sheet.

(i) What is gene therapy? Name the first clinical case where it was used. (ii) Why is the introduction of genetically engineered lymphocytes into ADA deficiency patient not a permanent cure? Suggest a possible permanent cure.