Question
Download Solution PDFEach polynucleotide of DNA is made up of small units called _____________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is
Key Points
- A nucleotide is the basic building block of nucleic acids, such as DNA and RNA.
- Each nucleotide in DNA consists of a deoxyribose sugar, a phosphate group, and one of four nitrogenous bases:
- Adenine (A)
- Guanine (G)
- Cytosine (C)
- Thymine (T)
- Polynucleotides are long chains of these nucleotides.
Additional Information
| Option | Explanation |
|---|---|
| Nuclear membrane |
The nuclear membrane, also known as the nuclear envelope, is not the correct answer. This is a double membrane structure that surrounds the nucleus in eukaryotic cells. It separates the contents of the nucleus from the rest of the cell. |
| Nuclei |
Nuclei are not the correct answer. It is the plural form of the nucleus. The nucleus is the large, membrane-bound organelle that contains the cell's genetic material in the form of DNA. It controls many of the functions of the cell by regulating gene expression. |
| Nucleus |
The nucleus is not the correct answer for the same reasons stated in option 3. It is an organelle within eukaryotic cells that houses the cell's genetic material but is not a component of the DNA itself. |
Last updated on Jul 16, 2025
-> More than 60.65 lakh valid applications have been received for RPF Recruitment 2024 across both Sub-Inspector and Constable posts.
-> Out of these, around 15.35 lakh applications are for CEN RPF 01/2024 (SI) and nearly 45.30 lakh for CEN RPF 02/2024 (Constable).
-> The Examination was held from 2nd March to 18th March 2025. Check the RPF Exam Analysis Live Updates Here.