instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Like mitochondria, plastids contain their own dna.
answer:
Like mitochondria, plastids contain their own what?

question:
How much is involved in the reaction does the coefficient in front of an element in a formula indicate.
answer:
What does the coefficient in front of an element in a formula indicate?

question:
Polysaccharides are polymers composed of many sugar building blocks called.
answer:
What are polymers composed of many sugar building blocks called?