Biotechnology and Its Applications

The term genetic engineering is used for :

• blotting technique

• RNA reaction technique

• protein synthesis technique

• recombinant technique

Humulin is a :

• form of chitin

• human insulin

• digestive enzyme

• antibiotics

Genetically engineered human insulin is called

• humulin

• haematin

• hybridoma

• hybrid

Micro-organism which act as a vehicle for foreign gene transfer in higher plants

• Agrobacterium

• E. coli

• T.M.V.

• Bacillus anihracis

Assertion : "Rosie", the first transgenic cow, produced human protein-enriched milk.

Reason : The milk contained the human alpha­ for human babies than natural cow milk.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both the assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both the assertion and reason are false.

Which of the following pairs is correctly matched

• Central dogma- Codon

• Okazaki fragments - Splicing

• RNA polymerase -RNA primer

• Restriction enzymes - Genetic engineering

The substrate for photorespiration is :

• glycolate

• acetyl Co-A

• pyruvic acid

• glucose

Which is Indian dwarf wheat?

• T. dicoccum

• T. sphaerococcum

• T. turgidum

• T. aestivum

Cultivation of Bt cotton has been much in the news. The prefix Bt means

• "Barium-treated" cotton seeds

• "Bigger thread" variety of cotton with better tensile strength

• produced by "biotechnology" using restriction enzymes and ligases 

• carrying an endotoxin gene from Bacillus thuringienesis.

Restriction enzymes are used in genetic engineering, because they

• can degrade harmful proteins

• can join different DNA fragments

• can cut DNA at specific base sequence

• are nucleases that cut DNA at variable sites