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 601 Discuss
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Which of the following describes the 'Law of Independent Assortment' correctly

A
Genes for different traits are inherited independently of each other
B
Genes for the same trait are always inherited together
C
Alleles segregate during gamete formation
D
Dominant genes always mask recessive genes

Answer & Explanation

Correct Option: A

This law applies to genes on different chromosomes or far apart on the same chromosome.
Question 602 Discuss
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Identify the 'Tricky' part: Which of the following is a 'Living' mechanical tissue

A
Parenchyma
B
Collenchyma
C
Sclerenchyma
D
Xylem

Answer & Explanation

Correct Option: B

Collenchyma provides flexibility and strength while remaining alive; sclerenchyma is dead at maturity.
Question 603 Discuss
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Which hormone is secreted by the 'Kidney' to stimulate RBC production

A
Renin
B
Erythropoietin (EPO)
C
Aldosterone
D
Angiotensin

Answer & Explanation

Correct Option: B

In response to low oxygen, the kidney releases EPO, which acts on the bone marrow.
Question 604 Discuss
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In the human circulatory system 'Capillary' walls are composed of which type of cells

A
Stratified epithelium
B
Simple squamous epithelium (Endothelium)
C
Cuboidal epithelium
D
Smooth muscle

Answer & Explanation

Correct Option: B

The single-cell thickness of the endothelium allows for efficient exchange of materials.
Question 605 Discuss
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Identify the 'Tricky' part: Which of the following is 'NOT' a part of a standard synapse

A
Pre-synaptic neuron
B
Synaptic cleft
C
Myelin sheath
D
Post-synaptic neuron

Answer & Explanation

Correct Option: C

A synapse is the junction between two neurons; myelin is an insulator on the axon.
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