Question

describe the structure and function of chromosome (15 mark)
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Answer 1

Here is your answer

Structure of chromosome :-

A chromosome is a string of DNA wrapped around associated proteins that give the connected nucleic acid bases a structure. During interphase of the cell cycle, the chromosome exists in a loose structure, so proteins can be translated from the DNA and the DNA can be replicated. During mitosis and meiosis, the chromosome becomes condensed, to be organized and separated.

Function of chromosome :-

The chromosome holds not only the genetic code, but many of the proteins responsible for helping express it. Its complex form and structure dictate how often genes can be translated into proteins, and which genes are translated. This process is known as gene expression and is responsible for creating organisms. Depending on how densely packed the chromosome is at certain point determines how often a gene gets expressed.

I hope it helps you.

Answer 2

Structure:

• Composed of protein and DNA.

• Every chromosomes contains a single molecule of DNA spooled around protein cores.

• It is a single piece of coiled DNA containing many genes.

• Chromosomes also contain DNA- bound proteins , which serve to package the DNA and controls its functions.

Function:

• Chromosomes facilitate proper cell division and replication.

• The main function of the chromosome is to fit the DNA inside the nucleus.

• Chromosome also help in inheriting genes or DNA from parents to offsprings.

• Regulates the proteins of cells.

• Contain instructions to form new cells.