Question
Sequence the principal stages of biological nitrogen
fixation in their correct order of occurence- (A). Formation of infection thread (B). Rhizobium multiply to colonise. (C). Curling of root hair (D). Differentiation of cortical cells into nitrogen fixing cells Choose the correct answer from the options given below.Solution
The sequence for nitrogen fixation by Rhizobium in legumes involves: (B) Rhizobium multiply to colonize: Bacteria colonize the root surface. (C) Curling of root hair: Root hairs curl in response to bacterial signals.
Cold test of fat is a measure of:
M.S. Swaminathan was an Indian:
______ is a protein in milk that contains all the essential amino acids:
Natural vinegar is produced from alcohol by:
Match the following:
The source of enzyme alpha- amylase is:
Options:
1. Yeast
2. Bacteria
3. Mold
4. Virus
_________bacteria causes blackening of pickle.
Human insulin is being commercially produced from a transgenic species of:
"Processing of food is a segment of manufacturing industry that transforms animal, plant and marine material into intermediate or finished value added f...
Which of the following is a factor that affects the storage stability of food?
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