Multiple Choice Questions

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Which is Indian dwarf wheat?

  • T. dicoccum

  • T. sphaerococcum

  • T. turgidum

  • T. aestivum


B.

T. sphaerococcum

Triticum aestivum is an Indian dwarf wheat. It is endemic to Southern Pakistan and North- western India.


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Match Column I with Column II and choose the correct option.

Column I Column II
1. Totipotency A. breeding crops with higher levels of nutrients
2. Micropropagation B. plant grown from hybrid protoplast
3. Somaclone C. producing a large number of plants through tissue culture
4. Somatic hybrid D. capacity to generate a whole plant from an explan
5. Biofortification E. Plants genetically identical to the original plant

  • 1 - D; 2 - C; 3 - E; 4 - B; 5 - A

  • 1 - A; 2 - E; 3 - B; 4 - D; 5 - C

  • 1 - C; 2 - B; 3 - E; 4 - D; 5 - A

  • 1 - D; 2 - E; 3 - A; 4 - D; 5 - C

  • 1 - D; 2 - E; 3 - A; 4 - D; 5 - C


The substrate for photorespiration is :

  • glycolate

  • acetyl Co-A

  • pyruvic acid

  • glucose


What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in boll worm?

  • Moist surface of midgut

  • Alkaline pH of gut

  • Acidic pH of stomach

  • Body temperature


Which of the following statements about transgenic animals is/are false?

(i) Transgenic animals are designed to study how genes are regulated.

(ii) They are specially made to serve as models for human diseases.

(iii) Transgenic Cow, Rosie was created to produce the human protein a-1-antitrypsin.

(iv) Transgenic mice are used to test the safety of vaccines.

  • (iii) only

  • (i) and (iii) only

  • (ii) only

  • (ii) and (iii) only

  • (ii) and (iii) only


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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.


Select the wrong statement

  • Human insulin is being commercially produced from a transgenic species of Escherichia coli.

  • The genetically modified bacillus thuringiensis is used as biopesticide on the commercial scale

  • Human protein, alpha-1 -antitrypsin is used to treat emphysema

  • The first transgenic cow, Rosie, produced alpha lactalbumin, enriched milk

  • The first transgenic cow, Rosie, produced alpha lactalbumin, enriched milk


Which one of the following is used extensively in biochemical and genetic work?

  • Saccharomyces

  • Aspergillus

  • Claviceps

  • Penicillium

  • Penicillium


Which of the following glucose transporters is insulin-dependent?

  • GLUT II

  • GLUT III

  • GLUT IV

  • GLUT I


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A person affected with phenylketonuria, lacks an enzyme that converts the amino acid phenylalanine into

  • Valine

  • Proline

  • Histidine

  • Tyrosine

  • Tyrosine


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