- Biology Notes for UPSC IAS Prelims (Part II)
- Biology - Home
- Biology - Classification of Organisms
- Biology - Cell Division
- Biology - Virus
- Biology - Bacteria
- Biology - Fungi
- Biology - The Roots
- Biology - The Plant Stem
- Biology - The Plant Leaf
- Biology - The Flowers
- Biology - The Fruit
- Biology - Plant Diseases
- Biology - The Blood
- Biology - Blood Group
- Biology - Human Brain
- Biology - Skeleton System
- Biology - Endocrine System
- Biology - Endocrine Diseases
- Biology - Carbohydrate
- Biology - Proteins
- Biology - Fats
- Biology - Vitamins
- Biology - Minerals
- Biology - Genetic Terminology
- Organisms & their Chromosome Counts
- Biology - Viral Diseases
- Biology - Bacterial Diseases
- Branches of Biology
- Inventions & Discoveries in Biology
- Nobel Prize in Biology
Biology Part 2 Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Biology. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - Consider the following statements:
1. The DNA has four bases similar to the English letters A, G, T, and C.
2. DNA bases are used to store information.
Choose the correct answer from the codes given below:
Answer : C
Explanation
Information is passed from DNA to RNA by complementary pairing.
Q 2 - Deficiency of Vitamin B12 causes?
Answer : C
Explanation
Megaloblastic is a sort of anemia.
Answer : C
Explanation
N/A
Q 4 - Which among the following antibodies plays the role of defence mechanism?
Answer : A
Explanation
N/A
Answer : B
Explanation
Respiration through skin is known as Cutaneous respiration.
Q 6 - When the bark of a tree is removed in a circular manner near its base, the tree dries up soon because …
A - Water from soil cannot rise to the upper parts
Answer : A
Explanation
N/A
Q 7 - According to the cell theory:
A - A human being consists of trillions of cells
B - All organisms are made up cells
Answer : A
Explanation
According to the cell theory, all organisms are composed of one or more cells, and the cells are the fundamental unit in all living organisms.
Answer : C
Explanation
N/A
Q 9 - Consider the following statements:
1. The bones that enclose the brain and support the face and teeth is known as skull.
2. The backbone is made of cartilage.
Choose the correct answer from the codes given below:
Answer : A
Explanation
The backbone is made of vertebrae.
Q 10 - Which among the following is an ideal condition for the seeds preservation?
Answer : C
Explanation
N/A
Q 11 - Consider the following statements:
1. Multicellular organisms replace worn-out cells through cell division.
2. An enzyme namely telomerase is found in large quantities in cancerous cells that rebuild the telomeres and encouraging cell division to continue indefinitely.
Choose the correct answer from the given codes:
Answer : C
Explanation
N/A
Answer : D
Explanation
N/A
Q 13 - Which among the following is an important therapy for cholera?
Answer : C
Explanation
Cholera is a bacterial and infectious disease causing severe diarrhoea and dehydration
Q 14 - The phenomenon of emitting light naturally from the body by some of the living organisms is known as …
Answer : A
Explanation
Bioluminescence is the production and emission of light by a living organism; normally, some of the marine species have this property.
Q 15 - Who among the following has discovered Antibiotic?
Answer : A
Explanation
London based scientist, Alexander Fleming first discovered antibiotic (penicillin) in 1928.
Q 16 - Consider the following terms:
1. Homohabilis
2. Homo erectus
3. Homorudolfensis
4. Homocepranensis
Arrange the above given terms in chronological order:
Answer : A
Explanation
N/A
Q 17 - Consider the following statements:
1. It is believed that the earliest bipedal hominin is either Orrorin or Sahelanthropus.
2. It is believed that the earliest genus Homo is Homo erectus.
Choose the correct answer from the codes given below:
Answer : A
Explanation
It is believed that the earliest genus Homo is Homo habilis.
Q 18 - Which among the following is found either floating freely or attached with the endoplasmic reticulum?
Answer : C
Explanation
N/A
Q 19 - Consider the following statements:
1. RBCs have no nucleus.
2. RBCs contain a pigment namely haemoglobin.
Choose the correct answer from the codes given below:
Answer : C
Explanation
Haemoglobin gives red color to blood.
Q 20 - Consider the following statements:
1. DNA is double stranded molecule with a long chain of nucleotides.
2. RNA is a single stranded molecule with a smaller chain of nucleotides.
Choose the correct answer from the given codes:
Answer : A
Explanation
N/A
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