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

General Science

jkssb biology set 1 mcqs

Download PDF

Topics

jkssb physics set 1 mcqs jkssb chemistry set 1 mcqs jkssb biology set 1 mcqs

Practice Questions

605 Total
Question 291 Discuss
Ask a Friend

Which among the following is the most abundant protein in the animal world

A
Insulin
B
Hemoglobin
C
Collagen
D
Trypsin

Answer & Explanation

Correct Option: C

Collagen is the main structural protein in connective tissues like skin, tendons, and bones.
Question 292 Discuss
Ask a Friend

A cross between a tall pea plant TT and a short pea plant tt results in all tall offspring in F1 generation This illustrates

A
Law of Segregation
B
Law of Dominance
C
Incomplete Dominance
D
Codominance

Answer & Explanation

Correct Option: B

The tall trait (T) is dominant over the short trait (t), masking it in the heterozygous state (Tt).
Question 293 Discuss
Ask a Friend

The main component of the cell wall of fungi is

A
Cellulose
B
Hemicellulose
C
Chitin
D
Pectin

Answer & Explanation

Correct Option: C

Fungal cell walls are made of chitin, while plant cell walls are made of cellulose.
Question 294 Discuss
Ask a Friend

Which of the following blood cells are responsible for the production of antibodies

A
Neutrophils
B
B-Lymphocytes
C
T-Lymphocytes
D
Monocytes

Answer & Explanation

Correct Option: B

B-cells produce antibodies (humoral immunity), while T-cells are involved in cell-mediated immunity.
Question 295 Discuss
Ask a Friend

The red light of the spectrum is most effective in photosynthesis because

A
It has the shortest wavelength
B
It is absorbed most by chlorophyll a and b
C
It has the highest energy among all visible light
D
It is not absorbed but reflected by plants

Answer & Explanation

Correct Option: B

Chlorophyll absorbs maximum light in the red and blue regions of the visible spectrum.
Question 296 Discuss
Ask a Friend

Which organ in the human body is responsible for the 'Urea cycle' or detoxification of ammonia

A
Kidney
B
Liver
C
Small Intestine
D
Pancreas

Answer & Explanation

Correct Option: B

The liver converts toxic ammonia (a byproduct of protein metabolism) into less toxic urea, which is then excreted by kidneys.
Question 297 Discuss
Ask a Friend

In the human eye the 'Yellow Spot' or Macula Lutea is the area of

A
Maximum visual acuity
B
No vision blind spot
C
Maximum sensitivity to dim light
D
Connection with the optic nerve

Answer & Explanation

Correct Option: A

The fovea centralis within the yellow spot contains a high concentration of cone cells, providing sharp central vision.
Question 298 Discuss
Ask a Friend

Which of the following is an example of a reflex action

A
Reading a book
B
Knee-jerk response
C
Riding a bicycle
D
Speaking a language

Answer & Explanation

Correct Option: B

Reflex actions are rapid, involuntary responses to stimuli controlled primarily by the spinal cord.
Question 299 Discuss
Ask a Friend

The 'Pace Maker' of the heart is located in which chamber

A
Left Atrium
B
Left Ventricle
C
Right Atrium
D
Right Ventricle

Answer & Explanation

Correct Option: C

The Sinoatrial (SA) node is located in the wall of the right atrium.
Question 300 Discuss
Ask a Friend

Minamata disease was caused by eating fish contaminated with

A
Cadmium
B
Lead
C
Methyl Mercury
D
Zinc

Answer & Explanation

Correct Option: C

It is a neurological syndrome caused by severe mercury poisoning, first discovered in Minamata City, Japan.
Previous Next