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Practice MCQ Questions and answers on Biology-GK

Learn and practice General Knowledge questions and answers on Biology with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-6 section-3

Each section contains 100 MCQs on Biology .
51
Which of the following micro-organism causes diseases like polio and chicken pox?
Discuss
Answer & Solution
Answer: Option D
Solution:
Serious diseases like polio and chicken pox are caused by viruses.
52
What kingdom does Amoeba belong to
Discuss
Answer & Solution
Answer: Option B
Solution:
Amoeba belongs to kingdom protista.
53
Which bacteria cause the greatest harm in the food industry?
Discuss
Answer & Solution
Answer: Option D
Solution:
Pathogenic bacteria cause the greatest harm in the food industry.
54
Bacteria divides by
Discuss
Answer & Solution
Answer: Option A
Solution:
Bacteria reproduce by binary fission. In this process the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two (replicates).
55
Important plant diseases like fire-blight and crown all are caused by
Discuss
Answer & Solution
Answer: Option B
Solution:
Important plant diseases like fire-blight and crown all are caused by bacteria.
56
In ________ cells the genetic material is without any nuclear membrane covering and is directly submerged in the cytoplasm.
Discuss
Answer & Solution
Answer: Option C
Solution:
In bacteria cells the genetic material is without any nuclear membrane covering and is directly submerged in the cytoplasm.
57
Cyanobacteria are also known as
Discuss
Answer & Solution
Answer: Option B
Solution:
Cyanobacteria, also known as blue-green bacteria, blue-green algae, and Cyanophyta, is a phylum of bacteria that obtain their energy through photosynthesis.
58
Branch of biology which deals with the study processing and preservation of food is called
Discuss
Answer & Solution
Answer: Option A
Solution:
Branch of biology which deals with the study processing and preservation of food is called Food technology.
59
A viral species is a group of viruses that has
Discuss
Answer & Solution
Answer: Option C
Solution:
A viral species is a group of viruses that has same ecological niche and same genetic information.
60
The litmus paper utilized in the chemical laboratories is made of :
Discuss
Answer & Solution
Answer: Option C
Solution:
Litmus paper is an acid/base indicator that changes color to identify bases and acids. Litmus is a dye made from naturally occurring substances, including lichens (fungi)– the most commonly used of which is the species roccella tinctoria.