Which one of the following represents a palindromic sequence in DNA?
Which one of the following represents a palindromic sequence in DNA?
Options
(a) 5′ – GAATTC – 3′ 3′ – CTTAAG – 5′ (b) 5′ – CCAATG – 3′ 3′ – GAATCC – […]
Questions
Which one of the following palindromic base sequences in DNA can be easily
Which one of the following palindromic base sequences in DNA can be easily cut at about the middle by some particular restriction enzyme?
Options
(a) 5’…..CGTTCG…..3′ 3’…..ATGGTA…..5′ (b) 5’…..GATATG…..3′ 3’…..CTACTA…..5′ (c) 5’…..GAATTC…..3′ 3’…..CTTAAG…..5′ […]
The colonies of recombinant bacteria appear white in contrast to blue colonies
The colonies of recombinant bacteria appear white in contrast to blue colonies of non-recombinant bateria because of :
Options
(a) Insertional inactivate of alphaga-lactosidase in non-recombinant bacteria (b) Insertional inactivation of alpha-galactosidase in […]
Bacillus thuringiensis forms protein crystals which contain insecticidal protein.
Bacillus thuringiensis forms protein crystals which contain insecticidal protein.
Options
(a) binds with epithelial cells of midgut of the insect pest ultimately killing it (b) is coded by several genes including the gene […]
RNA interference involves
RNA interference involves
Options
(a) Synthesis of mRNA from DNA (b) Synthesis of cDNA from RNA using reverse transcriptase (c) Silencing of specific mRNA due to complementary RNA (d) Interference of RNA in […]
What is true about Bt toxin?
What is true about Bt toxin?
Options
(a) Bt protein exists as active toxin in the Bacillus (b) The activated toxin enters the ovaries of the pest to sterilise it and thus prevent […]
Transgenic plants are the ones:
Transgenic plants are the ones:
Options
(a) generated by introducing foreign DNA into a cell and regenerating a plant from that cell (b) produced after protoplast fusion in artificial medium (c) grown in […]
Some of the characteristics of Bt cotton are:
Some of the characteristics of Bt cotton are:
Options
(a) long fibre and resistance to aphids (b) medium yield, long fibre and resistance to beetle pests (c) high yield and production of toxic […]
Genetic engineering has been successfully used for producing:
Genetic engineering has been successfully used for producing:
Options
(a) transgenic mice for testing safety of polio vaccine before use in humans (b) transgenic models for studying new treatments for certain cardiac diseases […]
Consider the following statements (A-D) about organic farming
Consider the following statements (A-D) about organic farming: (A)Utilizes genetically modified crops like Bt cotton (B)Uses only naturally produced inputs like compost (C)Does not use pesticides and urea (D)Produces vegetables rich in vitamins and minerals. […]