Group+9


 * Assignment 1: **

1. What is DNA? - Deoxyribonucleic acid, a molecule that carries genetic information, found in the nucleus of cells.

2. How is DNA organized inside the cells? - The two parallel strands in each DNA are twisted around each other to form a double helix. A molecule of DNA is wrapped around proteins to form a chromatin thread. Chromatin threads are tightly coiled into chromosones inside the cell nucleus.

3. What is gene? - A small segment of DNA that contains information (instruction) to make a single protein. Each protein is responsible for determining a particular characteristic of an organism.

4. What is the basic unit of DNA and what is it made up of? - The basic unit of DNA is called nucleotide. Each nucleotide is made up of a sugar called deoxyribose, a phosphate group, and anitrogen-containing base.

5. State the rules of base pairing. - Adenine (A) always pairs with Thymine (T). - Cytosine (C) always pairs with Guanine (G). - (A) and (T) are complementary bases. - (C) and (G) are complementary bases.

// Complete the assignment in your respective group pages. //

Assignment 2:

1. Explain the process of transcription.
 * DNA must be unziped to expose the template DNA strand.
 * The message of the gene on the template DNA must be copied into a RNA molecule called messanger RNA [mRNA].
 * This copying proccess in known as transcription.

2. Explain the process of translation.
 * After transcription, mRNA detatched itself from DNA template and carries the message out of the nucleus into cytoplasm.
 * The DNA molecule revert back into its duble helix structure.
 * A ribosome helps to convert, (translate) the message in the mRNA into a protein molecule.
 * This is called translation.