A ________ can be defined as a polynucleotide chain that consists of segments each controlling a particular trait. 

 DNA helical model is each side made up of ________ molecules. 

 DNA was discovered by _____________ in 1962. 

 DNA ____________ is a special type of enzyme to join or transfer the filaments of DNA breaks. 

______________ is fined as the use of microorganisum, animal cells or plant cells or their components to generate products which will be useful to human beings. 

Which of the following is manufactured by fermentation process? 

 An example of transgenic plant is _____________. 

 The first transgenic organism used in transgenic bacterium produced human ____________. 

 The amount of ___________ in cells always equals the amount of guanine. 

 _____________ can be best studied during metaphase stage of divisions.