Question 26.
Give scientific reasons.
Use of mutant strains has been increased in industrial microbiology.
Answer:
During industrial production of milk products, strict cleanliness and sterilization is essential as bacteria can be attacked by viruses. Hence, virus-resistant varieties of bacteria are developed. Recently, use of mutant varieties of bacteria has been increased. Artificially, some strains are developed that will help to avoid unnecessary steps or materials.
