DNA and RNA - Worksheet | Distance Learning - Free Printable

Let me first examine the image closely to identify the nitrogenous bases shown and their labels.

The image shows two columns: DNA (Deoxyribonucleic acid) on the left and RNA (Ribonucleic acid) on the right. Each has four rows with structures labeled A, C, G, T (in DNA) and A, C, G, U (in RNA). The question asks to label the names of the nitrogenous bases.

From biology knowledge:
- In DNA, the four nitrogenous bases are:
- Adenine (A)
- Cytosine (C)
- Guanine (G)
- Thymine (T)

- In RNA, the four nitrogenous bases are:
- Adenine (A)
- Cytosine (C)
- Guanine (G)
- Uracil (U)

So for Q.3, the blanks should be filled with:
- DNA column (top to bottom): Adenine, Cytosine, Guanine, Thymine
- RNA column (top to bottom): Adenine, Cytosine, Guanine, Uracil

Now for Q.4, we need to fill in the blanks:

DNA side:
- A nucleic acid, called deoxyribonucleic acid
- The sugar in DNA is deoxyribose
- DNA is double stranded.

RNA side:
- A nucleic acid, called ribonucleic acid
- The sugar in RNA is ribose
- RNA is single stranded.

Let me double-check these facts to ensure accuracy.

Yes, confirmed:
- DNA = deoxyribonucleic acid, sugar = deoxyribose, double-stranded
- RNA = ribonucleic acid, sugar = ribose, typically single-stranded

Now I'll provide the final answer as requested.

Final Answer:
Q.3:
DNA column (top to bottom): Adenine, Cytosine, Guanine, Thymine
RNA column (top to bottom): Adenine, Cytosine, Guanine, Uracil

Q.4:
DNA: deoxyribonucleic acid, deoxyribose, double
RNA: ribonucleic acid, ribose, single