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

This option is correct because 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 is 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; and ligases are called 'molecular stitchers' because of their ability to catalyse the joining of two large molecules by forming a new chemical bond.

Keep practicing — related questions