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Biology Mcqs

Study the fundamentals and advanced topics of life sciences with our topic-wise Biology MCQs designed for academic and competitive exam preparation. These multiple-choice questions cover cell biology, genetics, human physiology, microbiology, plant biology, ecology, evolution, biotechnology, enzymes, DNA & RNA, and biological classifications. Ideal for students, educators, and candidates appearing in PPSC, FPSC, CSS, NTS, SPSC, BPSC, KPSC, ETEA, AJKPSC, and other testing bodies. Also beneficial for exams related to science teaching, medical entry tests, and public sector recruitment in health departments.

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1 Biology Mcqs

In a normal human body, what is the approximate total number of red blood cells (RBCs)?

  • 15 trillion
  • 20 trillion
  • 25 trillion
  • 30 trillion
0 Comments
Correct Answer: D. 30 trillion

Explanation:

Red blood cells (RBCs), also called erythrocytes, are the most abundant type of ... Read More Details

2 Biology Mcqs

Which structure in a cell contains the genes?

  • Genetics
  • Saliva
  • Marrow
  • Chromosome
0 Comments
Correct Answer: D. Chromosome

Explanation:

Genes are the basic units of heredity that carry the instructions for the ... Read More Details

3 Biology Mcqs

Which floral part produces pollen grains in a flower?

  • Sepal
  • Petal
  • Anther
  • Ovary
0 Comments
Correct Answer: C. Anther

Explanation:

In flowering plants, reproduction occurs through the production of male and female gametes. ... Read More Details

4 Biology Mcqs

Which of the following fruits develops from an inflorescence?

  • Apple
  • Guava
  • Pineapple
  • Grape
0 Comments
Correct Answer: C. Pineapple

Explanation:

Fruits are classified based on how they develop from flowers. Most fruits, like ... Read More Details

5 Biology Mcqs

How are genes inherited from parents distributed in a child?

  • More are from the father
  • More are from the mother
  • An equal number from each parent
  • There is never a constant number from the parents
0 Comments
Correct Answer: C. An equal number from each parent

Explanation:

A child inherits genes from both parents, and the contribution is exactly equal. ... Read More Details

6 Biology Mcqs

Which of the following is an edible underground stem?

  • Ginger
  • Sweet Potato
  • Sugarcane
  • Radish
0 Comments
Correct Answer: A. Ginger

Explanation:

In plants, stems are usually above ground and help support leaves, flowers, and ... Read More Details

7 Biology Mcqs

Trachoma is a disease that affects which part of the body?

  • Brain
  • Spinal cord
  • Larynx
  • Eye
0 Comments
Correct Answer: D. Eye

Explanation:

Trachoma is a contagious infectious disease that primarily affects the eyes, specifically the ... Read More Details

8 Biology Mcqs

The study of the liver and its diseases is called ?

  • Mycology
  • Angiology
  • Hepatology
  • Otology
0 Comments
Correct Answer: C. Hepatology

Explanation:

The liver is a vital organ in the human body responsible for many ... Read More Details

9 Biology Mcqs

Golden Rice is rich in which vitamin?

  • Vitamin A
  • Vitamin B
  • Vitamin C
  • Vitamin K
0 Comments
Correct Answer: A. Vitamin A

Explanation:

Golden Rice is a genetically modified variety of rice that has been developed ... Read More Details

10 Biology Mcqs

What is the safe moisture content for the storage of cereals?

  • 10%
  • 14%
  • 16%
  • 17%
0 Comments
Correct Answer: B. 14%

Explanation:

Proper storage of cereals is crucial to prevent spoilage, maintain quality, and avoid ... Read More Details

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