Biotechnology and Its Applications

Bacillus thuringiensis (Bt) strains have been used for designing novel

• bio- metallurgical technique

• bio- mineralization processes

• bio- insecticidal plants

• biofertilizers

Which of the following pairs is correctly matched

• Central dogma- Codon

• Okazaki fragments - Splicing

• RNA polymerase -RNA primer

• Restriction enzymes - Genetic engineering

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

The Triticale is an intergeneric hybrid between

• wheat and maize

• maize and rye

• wheat and rye

• bajra and wheat

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

• Agrobacterium

• E. coli

• T.M.V.

• Bacillus anihracis

Which one of the following methods is commonly used to maintain the genetic traits of a given plant

• By propagating through seed germination

• By propagating through vegetative multiplication

• By generating hybrids through intergeneric pollination

• By treating the seeds with gamma radiations

Which one of the following is a correct statement

• "Bt" in "Bt-cotton" indicates that it is a genetically modified organism produced through biotechnology.

• Classical plant breeding involves fusion of two somatic cells carrying desired genes.

• The anticoagulant hirudin is being produced from transgenic Brassica napus seeds.

• Golden rice is a transgenic variety of rice rich in vitamin E.

Assertion: Flavr-Savr tomato was the first transgenic commercial crop that entered the market.

Reason: Roundup variety of soybean was prepared through breeding.

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

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

• If assertion is true but reason is false.

• If both assertion and reason are false.

Which of the following is the correct scientific name of wheat derived by binominal nomenclature?

• Triticum Vulgare

• Triticum aestivum

• Oryza sativa

• Zea mays

The genetic material in tobacco mosaic virus is

• ss DNA

• ss RNA

• ds RNA

• ds DNA