Which of the following statements is/are correct for transduction?

• It is observed in Gram positive and Gram negative bacteria.

• Bacteria should be in state of competence

• Transfer of DNA by a bacteriophage takes place.

• Packaging of both host and phage DNA takes place

Which of these components is/are not present in Gram negative bacteria?

• Teichoic acid

• Pseudomurein

• Lipopolysaccharide

• Mycolic acid

The metrics described by whittaker which takes into account the number of species and their eveness is

• Shannon index

• Beta diversity

• Species richness

• Simpson index

194.

The heterocysts in the cyanobacterium are

• site of photosynthesis

• reserve food storage

• enactive enzymes

• nitrogen-fixation

Study the following Coloumns and match correctly.

Column I	Column II
A. Siphonogamy and  zooidogamy	1. Amphibians of plant kingdom
B. Living fossil	2. Arachis
C. Liverworts	3. Ginkgo
D. Double fertilisation	4. Cycas 5. Laminaria

The correct answer is

• A - 4; B - 5; C - 2; D - 1

• A - 2; B - 4; C - 1; D - 3

• A - 4; B - 3; C - 2; D - 1

• A - 4; B - 3; C - 1; D - 2

Statement I - Virus free plant can be produced from virus infected plant by means of meristem culture.

Statement II - Virus fails to grow during the growth of host tissues in the artificial medium.

• Statement I is correct, but Statement II is incorrect

• Statement II is correct, but Statement I is incorrect.

• Both Statement are correct

• Both statements are incorrect

The marine organism showing spinning movements and responsible for killing fishes by producing toxins belong to the following kingdom in Whittaker's classification.

• Monera

• Protista

• Fungi

• Animalia

Study the following Columns

Column I	Column II
A. Takhtajan	1. Five Kingdom classification
B. Linnaeus	2. Phylogenetic classification
C. Warming	3. Artificial classification
D. Carl Woese	4. Classification of communities based on relation of water 5. Six kingdom classification

The correct match is

• A - 2; B - 3; C - 4; D - 5

• A - 4; B - 1; C - 5; D - 3

• A - 5; B - 2; C - 1; D -4

• A - 5; B - 4; C - 2; D -3

Study the following Columns.

Column I	Column II
A. Solitary cyme	1. Solanum
B. Monochasical cyme	2. Ipomea
C. Cymule	3. Datura
D. Polychasial cyme	4. Jasmine 5. Nerium

The correct match is

• A - 3; B - 4; C - 5; D - 2

• A - 3; B - 1; C - 4; D - 5

• A - 1; B - 3; C - 5; D - 4

• A - 3; B - 1; C - 5; D - 2

The name of this class is based on sexual structure as the site of karyogamy and meiosis in

• Phycomyctes and Actinomycetes

• Deuteromycetes and Zygomycetes

• Ascomycetes and Basidiomycetes

• Basidiomycetes and Actinomycetes