‘DNA’ is one of the important topics on which students can be asked to write a paragraph in exams in school. DNA is the code of life, carrying the instructions for how living beings grow, look, and function. Please check the various versions (in 100 words, 150 words, 200 words, and 300 words) provided below for the paragraph.
Paragraph on ‘DNA’ in 100 Words
DNA is like a tiny instruction book inside every living thing. It tells our bodies how to grow, what color our eyes will be, and even how we look like our parents. DNA is made up of tiny building blocks called genes. These genes decide our traits, like hair color and height. DNA is so small that we need a microscope to see it. It is shaped like a twisted ladder, called a double helix. Scientists study DNA to learn more about people, animals, and plants. DNA also helps doctors understand diseases and find cures. It is very important!
Paragraph on ‘DNA’ in 150 Words
DNA is the instruction manual for all living things. It tells our bodies how to grow, what we look like, and how our cells work. DNA is found inside tiny parts of our body called cells. It is made of special building blocks called genes. These genes decide things like eye color, hair color, and height. DNA looks like a twisted ladder, which is called a double helix. Even though it is super tiny, DNA holds so much important information! Scientists use DNA to understand how life works. DNA can also help doctors find diseases and even solve crimes.
Paragraph on ‘DNA’ in 200 Words
DNA is a special code that tells our bodies how to grow and function. Every living thing—people, animals, and plants—has DNA. It is found inside tiny parts of our bodies called cells. DNA carries instructions that decide what we look like, such as our eye color, hair type, and height. These instructions are stored in small units called genes. DNA is shaped like a twisted ladder, called a double helix. Even though it is very tiny, it contains a lot of important information.
Scientists study DNA to learn how living things are related and how they change over time. Doctors use DNA to understand diseases and develop medicines. DNA can also help solve mysteries, like finding out who was at a crime scene. Each person’s DNA is unique, except for identical twins. That’s why DNA can be used to identify people. Without DNA, life wouldn’t exist!
Paragraph on ‘DNA’ in 300 Words
DNA is like a special set of instructions that tells our bodies how to grow, work, and look. Every living thing—humans, animals, and even plants—has DNA. It is found inside tiny building blocks of life called cells. Even though DNA is too small to see without a microscope, it carries important information about our traits, like our hair color, eye color, and height. These instructions are stored in tiny parts of DNA called genes. DNA is shaped like a twisted ladder, which scientists call a double helix.
Each person has unique DNA, except for identical twins, who have the same DNA. This is why DNA is used to identify people. Scientists also use DNA to study how living things are related. By comparing DNA, they can learn about family history, discover new species, and understand how life changes over time.
DNA also helps doctors find and treat diseases. Some illnesses are passed down from parents through DNA. By studying DNA, doctors can understand health problems and even create medicines. DNA is also used in solving crimes by matching evidence to a person.
Without DNA, life as we know it wouldn’t exist. It is the secret code that makes every living thing unique and special!
MCQ’s on ‘DNA’
1. What does DNA do in living things?
A) It gives energy
B) It provides instructions for growth and traits
C) It controls the weather
D) It makes food
2. What shape is DNA?
A) A straight line
B) A circle
C) A twisted ladder (double helix)
D) A triangle
3. Where is DNA found in the body?
A) In the bones
B) In the cells
C) In the heart
D) In the blood only
4. What are the small units that makeup DNA?
A) Proteins
B) Genes
C) Muscles
D) Vitamins
5. Why do scientists study DNA?
A) To control the weather
B) To learn about living things and solve problems
C) To change eye colors
D) To create new food
6. How does DNA help doctors?
A) It makes people stronger
B) It helps them understand diseases
C) It removes all illnesses
D) It controls body temperature
7. How is DNA used in crime investigations?
A) To make criminals confess
B) To identify people from evidence
C) To predict crimes
D) To change fingerprints
8. What makes people look like their parents?
A) The environment
B) Their DNA
C) Their favorite food
D) Their hobbies
9. Who has identical DNA?
A) Everyone in a family
B) Best friends
C) Identical twins
D) All humans
10. What would happen if DNA didn’t exist?
A) Life would not exist
B) People would be taller
C) Animals would talk
D) The world would be colder
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