DNA는 생물의 비밀지도!
✔ 학습 목표
- DNA가 무엇인지 이해해요.
- DNA가 생물의 특징과 관련 있는 이유를 알아봐요.
- DNA 비교를 통해 생물 간의 관계를 탐구해요.
🧠 개념 한눈에 보기
- 🧬 DNA is like a secret map that tells how living things grow.
- 🧪 It holds genes that decide things like eye color or height.
- 🔬 Scientists compare DNA to learn how animals are related.
- 🧫 Every living thing has DNA—even mushrooms and birds!
📘 Extended Reading Passage
DNA stands for deoxyribonucleic acid. That’s a long word, but it means something simple—DNA is the code for life!
Your body is made of tiny parts called cells. Inside each cell is DNA. It looks like a twisted ladder.
This ladder is made of pieces called genes. Genes tell your body how to grow, what color your hair is, and even how tall you might become.
Scientists can take a small sample of DNA and read its sequence.
By comparing DNA, they can see which animals are related.
For example, birds and lizards may share similar DNA. Even mushrooms have DNA!
DNA helps us understand the identity of every living thing.
📊 비교표: Human DNA vs Mushroom DNA
| 항목 | Human DNA | Mushroom DNA |
|---|---|---|
| 핵 존재 여부 | 있음 | 있음 |
| 염색체 수 | 46개 | 보통 6~14개 |
| 복잡성 | 매우 복잡함 | 단순한 구조 |
| 공통 유전자 | 약 40% 일치 | 약 40% 일치 |
✏️ 미니 퀴즈
Q1. What does DNA do in a living thing?
A. It builds muscles
B. It gives instructions
C. It stores water
D. It creates light
Q2. Where is DNA found?
A. In the air
B. Inside bones
C. Inside cells
D. On the skin
Q3. Why do scientists compare DNA?
A. To change color
B. To grow plants
C. To find family links
D. To make food
✔ 정답 및 해설
- Q1 – B. It gives instructions → DNA tells the cell what to do.
- Q2 – C. Inside cells → DNA lives inside the nucleus of cells.
- Q3 – C. To find family links → Comparing DNA helps us find how animals are related.
🔤 어휘 정리표
| 영어 단어 | 영어 뜻 | 한글 뜻 | 예문 |
|---|---|---|---|
| DNA | code for life | 생명의 설계도 | DNA is the code for life. |
| gene | unit of heredity | 유전자 | Genes decide eye color. |
| compare | look at similarities | 비교하다 | We compare DNA to see who is related. |
| sample | a small part | 샘플, 시료 | We test a DNA sample. |
| sequence | order of parts | 염기서열 | DNA has a long sequence. |
| identity | who or what something is | 정체성 | DNA shows your identity. |
📌 교과 연계 정보
- 초등 과학 5~6학년: 생물과 유전, 생물의 특징 이해
- 중학교 과학 1학년: 유전의 기본 개념과 DNA 구조
- 영어: 생물 용어 학습 + 설명문 독해
※ 본 콘텐츠는 『초등 과학 6학년 – 생물의 세계』 및 『중학교 과학 – 생명과학 단원』과 연계됩니다.
💡 감성 마무리 문장
우리 몸 속 아주 작은 DNA 안에,
우리가 누구인지에 대한 비밀이 담겨 있어요.
🔗 관련 영상 보기
👉 Watch a kid-friendly DNA video
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