Consider statements about scientists: 1. Gregor Mendel is the father of genetics. 2. Edward Jenner developed the smallpox vaccine. 3. Charles Darwin proposed the cell theory. Which are correct? MCQ with Answer and Explanation

Question

Consider statements about scientists: 1. Gregor Mendel is the father of genetics. 2. Edward Jenner developed the smallpox vaccine. 3. Charles Darwin proposed the cell theory. Which are correct?

A. 1, 2 and 3

B. 2 and 3 only

C. 1 and 2 only

D. 1 and 3 only

Answer: Option C

Solution (By JKExamLibrary)

Gregor Mendel, through his pea plant experiments, established the fundamental laws of inheritance, earning him the title 'father of genetics'. Edward Jenner pioneered the concept of vaccination by developing the first successful smallpox vaccine using cowpox material. Charles Darwin proposed the theory of evolution by natural selection, not the cell theory (proposed by Schleiden and Schwann). Thus, statements 1 and 2 are correct.

This question belongs to: Science Biology

Request complete Subject PDF

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Biology Questions

Question #1

Share Report

The vitamin that is required for the synthesis of melanin is:

A. Vitamin C

B. Vitamin B₆

C. Vitamin D

D. Vitamin A

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option A

Explanation:
Vitamin C is a cofactor for the enzyme tyrosinase, which is involved in melanin synthesis. Vitamin A is for vision, B₆ for amino acid metabolism, D for calcium.

This question belongs to: Science Biology

Question #2

Share Report

The term 'tonoplast' refers to the membrane surrounding the:

A. Chloroplast

B. Mitochondria

C. Vacuole

D. Nucleus

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option C

Explanation:
The tonoplast is the single membrane enclosing the central vacuole in plant cells. It regulates the movement of ions, sugars, and waste products into and out of the vacuole, maintaining turgor pressure. The nuclear membrane is the nuclear envelope, mitochondria have inner/outer membranes, chloroplasts have a double membrane.

This question belongs to: Science Biology

Question #3

Share Report

The polysaccharide that forms the major structural component of plant cell walls is:

A. Starch

B. Glycogen

C. Chitin

D. Cellulose

View Answer & Solution Discuss

Get Complete Subject PDF for Science

Correct Answer: Option D

Explanation:
Cellulose, a linear polymer of β-D-glucose units linked by β-1,4-glycosidic bonds, forms microfibrils that provide tensile strength to plant cell walls. Glycogen is animal storage, starch plant storage, chitin in fungi and arthropods. Cellulose is the most abundant organic polymer on Earth.

This question belongs to: Science Biology

Explore All Biology MCQs