Multiple choice

Match the column – I with column – II and select the correct option.

 
Column – I
Column – II
A. Explant 1. Molecular stitchers
B. Probe 2. Fragment of DNA or RNA
C. Restriction endonucleases 3. Plant part for tissue culture
D. Ligases 4. Molecular scissors

  1. A - 4, B - 3, C - 2, D - 1

  2. A - 2, B - 1, C - 4, D - 3

  3. A - 2, B - 1, C - 3, D - 4

  4. A - 3, B - 2, C - 4, D - 1

  5. A - 1, B - 2, C - 3, D - 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Explant is any portion taken from a plant that will be used to initiate a culture. Probe is a fragment of DNA or RNA, which are used for hybridization. Restriction endonucleases are molecular scissors that recognise short DNA sequences usually 4–8 bp in length and cut the phosphodiester bond within or close to their target sites to generate a double-stranded break. Ligases are called 'molecular stitchers' because of their ability to catalyse the joining of two large molecules by forming a new chemical bond.

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