Assertion : Saccharomyces cerevisiae produces acetic acid.

Reason : Trichoderma polysporum produces blood cholestrol lowering agent.

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

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

• If assertion is true but reason is false.

• If both assertion and reason are false.

Select the correct statement.

• Acetobacter aceti produces citric acid

• Saccharomyces cerevisiae is used as clot buster

• Penicillium notatum restrict the growth of Staphylococci

• Methanogens are found in aerobic conditions

First clinical gene therapy was given in 1992 to a 4 years old girl for

• adenine deficiency

• growth deficiency

• adenosine deaminase deficiency

• adenosine deficiency

The first bioherbicide developed in 1981 was based on

• Phytophthora palmivora

• Phytophthora infestans

• Bacillus thuringiensis

• Azadirachta indica

Assertion: A gene from Bacillus thuringiensis is incorporated in plant genome to increase their yield.

Reason: Bacillus thuringiensis has Bt toxin producing gene, which kills the larva of insects

• 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.

One of the major difficulties in the biological control of insect pest is that

• the predator develops a preference to other diets and may itself become a pest

• the predator does not always survive when transferred to a new environment

• the method is less effective as compared with the use of insecticides

• the practical difficulty of introducing the predator to specific areas.

In transgenics, expression of transgene in target tissue is determined by

• enhancer

• transgene

• promoter

• reporter.

In the following table identify the correct matching of the crop, its disease and the corresponding pathogen.

• Crop	Disease	Pathogen
  Citrus	Canker	Pseudomonas rubrilineans

• Potato

  Late blight

  Fusarium udum

• Brinjal

  Root-knot

  Meloidogyne incognita

• Pigeon

  pea Seed gall

  Phytophthora infestans

49.

Which one of the following is a correct statement?

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

• Somatic hybridization involves fusion of two complete plant cells carrying desired genes.

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

• "Flavr Savr" variety of tomato has enhanced the production of ethylene which improves its taste.

In which one of the following combinations (a-d) of the number of chromosomes is the present day hexaploid wheat correctly represented

• Combination	­ Mono­soic	Haploid	Nullisomic	Trisomic
  (a)	21	28	42	43

• (b)

  7

  28

  40

  42

• (c)

  21

  7

  42

  43

• (d)

  41

  21

  40

  43