During recombination in E. coli, ________ recognize(s) regions of sequence similarity and promote(s) strand invasion, while ________ bind(s) to a Holliday junction promoting strand migration.

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#Question id: 14802

#Section 5: Bioprocess Engineering and Process Biotechnology

Column I                                                                                  column II

A. Hydrophobic interaction chromatography (HIC)          1. gradient stepwise

B. Ion exchange chromatography                                       2. isocratic

C. Gel filtration chromatography                                         3. stepwise

D. Affinity chromatography                                                  4.  Gradient stepwise

A       B       C      D

1        2       3       4

3        1       2       4

1       4        2       3

1       3        4       2

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#Question id: 2954

#Section 3: Genetics, Cellular and Molecular Biology

Cyclin concentrations are highest during which periods of the cell cycle?

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#Question id: 86

#Section 2: General Biology

Examine the cyclic D-monosaccharide shown below. The ring structure is the ________ and the linear form of this monosaccharide must be a/an ________.

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#Question id: 10522

#Section 6: Plant, Animal and Microbial Biotechnology

Mechanical barriers provide a first line of defence against insect pests and pathogens, these mechanical barriers developed by plants;

COLUMN A	COLUMN B
A. Thorns	i) It can be found on the stem and petioles of roses and are formed by the epidermis
B. Spines	ii) Found on a lemon tree (Citrus sp.) are modified branches, as can be seen by their position in the axil of a leaf
C. Prickles	iii) Found on shoot and leaves of tomato (Solanum lycopersicum) are derived from epidermal cells
D. Trichomes	iv) which are characteristic of cacti (Opuntia spp.) in the New World, are modified leaves

Match correctly following combination of barrier developed by plants ;

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#Question id: 14414

#Section 2: General Biology

How Aldehydes work as effective antimicrobial agent?