DNA and RNA - Worksheet | Distance Learning - Free Printable

Q.3: Label the names of the nitrogenous bases in DNA and RNA

The task is to identify and label the nitrogenous bases present in DNA and RNA. Let's analyze the image step by step:

#### DNA Nitrogenous Bases:
1. The base labeled with "A" is Adenine.
2. The base labeled with "C" is Cytosine.
3. The base labeled with "G" is Guanine.
4. The base labeled with "T" is Thymine.

#### RNA Nitrogenous Bases:
1. The base labeled with "A" is Adenine.
2. The base labeled with "C" is Cytosine.
3. The base labeled with "G" is Guanine.
4. The base labeled with "U" is Uracil.

#### Filled Labels:
- For DNA:
- Adenine (A)
- Cytosine (C)
- Guanine (G)
- Thymine (T)

- For RNA:
- Adenine (A)
- Cytosine (C)
- Guanine (G)
- Uracil (U)

Q.4: Fill in the blanks with suitable words to compare DNA and RNA

The task is to compare DNA and RNA based on their structure and composition. Let's fill in the blanks:

#### DNA:
1. A nucleic acid, called: Deoxyribonucleic acid (DNA).
2. The sugar in DNA is: Deoxyribose.
3. DNA is: Double-stranded.

#### RNA:
1. A nucleic acid, called: Ribonucleic acid (RNA).
2. The sugar in RNA is: Ribose.
3. RNA is: Single-stranded.

Filled Blanks:

| DNA | RNA |
|----------------------------------|----------------------------------|
| A nucleic acid, called: | A nucleic acid, called: |
| Deoxyribonucleic acid (DNA) | Ribonucleic acid (RNA) |
| The sugar in DNA is: | The sugar in RNA is: |
| Deoxyribose | Ribose |
| DNA is: | RNA is: |
| Double-stranded | Single-stranded |

Final Answer:

- Q.3:
- DNA: Adenine (A), Cytosine (C), Guanine (G), Thymine (T)
- RNA: Adenine (A), Cytosine (C), Guanine (G), Uracil (U)

- Q.4:
| DNA | RNA |
|----------------------------------|----------------------------------|
| Deoxyribonucleic acid (DNA) | Ribonucleic acid (RNA) |
| Deoxyribose | Ribose |
| Double-stranded | Single-stranded |

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\boxed{
\text{See explanations above for detailed answers.}
}
$$