Biology Practice Question and Answer
8 4 Q:
5f8fd4c1f28f4b47be4b9d1f 4 Q:
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616e8f627424fb16794d4c1a 4 Q:
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5efc05b830aa3b4ee606c3c5 Answer : 4. "Jones Salk "
Q: The total number of chromosomes in a human being is-
1446 05f8fd4c1f28f4b47be4b9d1f
5f8fd4c1f28f4b47be4b9d1f- 146true
- 248false
- 352false
- 4Indeterminatefalse
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Answer : 1. "46"
Q: What is the weight of human heart?
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5f7564734637db73283bbe03- 1100 gmsfalse
- 21000 gmsfalse
- 3800 gmsfalse
- 4300 gmstrue
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Answer : 4. "300 gms"
Q: Blood is an
1440 0616e8f627424fb16794d4c1a
616e8f627424fb16794d4c1a- 1Connective tissuetrue
- 2Epithelial tissuefalse
- 3Both of the abovefalse
- 4None of the abovefalse
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Answer : 1. "Connective tissue "
Q: Heart attack occurs due to :
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6389d246c878936066e81fc3- 1Bacterial attack on the heartfalse
- 2Stopping of heart beatfalse
- 3Lack of blood supply to the heart itselftrue
- 4Impairment of heart’s working due to unknown reasonsfalse
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Answer : 3. "Lack of blood supply to the heart itself"
Q: The function of Hemoglobin in the human body is to-
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5f0eddcc1090a0586540bc35- 1Carry oxygen to various tissuestrue
- 2Help excretionfalse
- 3Provide enzymes and hormonesfalse
- 4Provide amino acids for growthfalse
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Answer : 1. "Carry oxygen to various tissues "
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: Which of the following viruses causes Smallpox?
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60acc6b15c11632d824ab59a- 1Rhino Virusfalse
- 2Varicella Virusfalse
- 3Enter Virusfalse
- 4Variola Virustrue
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Answer : 4. "Variola Virus "
Q: Who discovered the polio vaccine –
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5efc05b830aa3b4ee606c3c5- 1Robert koachfalse
- 2Edward Generefalse
- 3Alexander Flemmingfalse
- 4Jones Salktrue
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Answer : 4. "Jones Salk "
Explanation :
(D) Jonas Salk
The polio vaccine was developed by Dr. Jonas Salk. He and his team conducted extensive research in the 1950s, leading to the development of the inactivated polio vaccine (IPV), which became widely used for the prevention of polio. The vaccine was a significant breakthrough in medical science and played a crucial role in the global effort to eradicate polio.
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