General Science Jkssb Biology Set 1 Mcqs (605 MCQs) | JKSSB & SSC Quiz

General Science

jkssb biology set 1 mcqs

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Practice Questions

605 Total
Question 331 Discuss
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Chromosomes are made up of

A
DNA only
B
DNA and Proteins
C
RNA and Proteins
D
DNA and Lipids

Answer & Explanation

Correct Option: B

Eukaryotic chromosomes consist of DNA wrapped around histone proteins to form chromatin.
Question 332 Discuss
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The primary objective of the Human Genome Project was to

A
Cure all genetic diseases by 2005
B
Sequence the entire three billion base pairs of human DNA
C
Create genetically modified humans
D
Identify the DNA of all extinct species

Answer & Explanation

Correct Option: B

Completed in 2003, the HGP aimed to map and sequence all human genes.
Question 333 Discuss
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Which of the following is a symptom of Iodine deficiency in the diet

A
Night blindness
B
Goitre
C
Scurvy
D
Beriberi

Answer & Explanation

Correct Option: B

Iodine is essential for thyroid hormone production; its lack causes thyroid enlargement known as goitre.
Question 334 Discuss
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Identify the correct order of the stages in Mitosis

A
Prophase Anaphase Metaphase Telophase
B
Prophase Metaphase Anaphase Telophase
C
Metaphase Prophase Anaphase Telophase
D
Telophase Anaphase Metaphase Prophase

Answer & Explanation

Correct Option: B

The sequence is PMAT: Prophase, Metaphase, Anaphase, and Telophase.
Question 335 Discuss
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Statement I Blood pressure is measured with a Sphygmomanometer Statement II Normal systolic blood pressure in a healthy adult is 80 mmHg

A
Only Statement I is correct
B
Only Statement II is correct
C
Both are correct
D
Neither is correct

Answer & Explanation

Correct Option: A

Systolic is 120 mmHg; 80 mmHg is the normal Diastolic pressure.
Question 336 Discuss
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The total volume of air a person can expire after a maximum inspiration is called

A
Tidal Volume
B
Vital Capacity
C
Residual Volume
D
Total Lung Capacity

Answer & Explanation

Correct Option: B

Vital Capacity = Tidal Volume + Inspiratory Reserve Volume + Expiratory Reserve Volume.
Question 337 Discuss
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Which of the following is a non-reducing sugar

A
Glucose
B
Fructose
C
Sucrose
D
Maltose

Answer & Explanation

Correct Option: C

Sucrose is a non-reducing sugar because its glycosidic bond involves the anomeric carbons of both glucose and fructose.
Question 338 Discuss
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The enzyme 'Carbonic Anhydrase' contains which metal ion at its active site

A
Iron
B
Magnesium
C
Zinc
D
Copper

Answer & Explanation

Correct Option: C

Carbonic anhydrase is a metalloenzyme that requires a Zinc cofactor to function.
Question 339 Discuss
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The process of 'Hemodialysis' utilizes the principle of

A
Active Transport
B
Diffusion
C
Phagocytosis
D
Coagulation

Answer & Explanation

Correct Option: B

Waste moves from high concentration (blood) to low concentration (dialysis fluid) across a semi-permeable membrane.
Question 340 Discuss
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Which among the following is not a primary nutrient for plants

A
Nitrogen
B
Phosphorus
C
Potassium
D
Iron

Answer & Explanation

Correct Option: D

NPK are primary macronutrients; Iron is a micronutrient required in smaller quantities.
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