Biology Questions Practice Question and Answer
8 Q: Which of the following is true?
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5f4cd4ff9b1d69402e95b706- 1DNA is the genetic material in all the virusesfalse
- 2RNA is the genetic material in all the virusesfalse
- 3DNA is the genetic material in most of the organismtrue
- 4RNA is the genetic material in most viruses and bacteriafalse
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Answer : 3. "DNA is the genetic material in most of the organism "
Q: The total number of chromosomes in a human being is-
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5f8fd4c1f28f4b47be4b9d1f- 146true
- 248false
- 352false
- 4Indeterminatefalse
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Answer : 1. "46"
Q: It causes clotting of blood –
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5ee35cfb55d51a0f6482c48f- 1Thrombintrue
- 2Hemoglobinfalse
- 3Pectinfalse
- 4All of the abovefalse
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Answer : 1. "Thrombin "
Explanation :
The substance that causes the clotting of blood is:
(A) Thrombin
Thrombin is an enzyme that plays a crucial role in the blood clotting process. It is responsible for converting fibrinogen, a soluble plasma protein, into insoluble fibrin threads. These fibrin threads form a mesh that helps in the clotting of blood, particularly at the site of injury or wound. Therefore, option (A) Thrombin is the correct answer.
Q: In which part of the body is the disorder related to diabetes?
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5f8ff42a7793eb35d7274f4c- 1Kidneyfalse
- 2Pancreatictrue
- 3liverfalse
- 4Spleenfalse
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Answer : 2. "Pancreatic "
Q: The unit of genes is?
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5ee83a5da08a50198d8cfde5- 1genefalse
- 2celltrue
- 3Faunafalse
- 4DNAfalse
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Answer : 2. "cell"
Q: Which of the following blood group is a universal donor?
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5f7564e1e487e60dcecaaf2c- 1AB positivefalse
- 2AB negativefalse
- 3O positivefalse
- 4O negativetrue
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Answer : 4. "O negative"
Q: Respiration occurs in orthopods?
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60363a60a0666c3c8506163a- 1Gilesfalse
- 2Tracheafalse
- 3Bumlangsfalse
- 4All of themtrue
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Answer : 4. "All of them"
Q: A person having blood type B could safely donate blood to persons with blood types
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5f29112b921df8082891ec8e- 1A and ABfalse
- 2B and ABtrue
- 3A and Ofalse
- 4B and Ofalse
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