The chromosomes of a eukaryotic cell consist primarily of DNA attached to a protein core. They also contain RNA. … DNA wraps around proteins called histones to form units known as nucleosomes. These units condense into a chromatin fibre, which condenses further to form a chromosome.
Are chromosomes made of RNA and protein?
These highly organized structures store genetic information in living organisms. Small sections of the chromosome, called genes, code for the RNA and protein molecules required by an organism. … Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones.
Where is RNA found?
DNA vs. RNA – 5 Key Differences and Comparison
|Location||DNA is found in the nucleus, with a small amount of DNA also present in mitochondria.||RNA forms in the nucleolus, and then moves to specialised regions of the cytoplasm depending on the type of RNA formed.|
How many DNA is in a chromosome?
One chromosome has 2 strands of DNA in a double helix. But the 2 DNA strands in chromosomes are very, very long. One strand of DNA can be very short – much shorter than even a small chromosome. Strands of DNA are made by joining together the 4 DNA bases in strings.
What are the 4 types of chromosomes?
On the basis of the location of the centromere, chromosomes are classified into four types: metacentric, submetacentric, acrocentric, and telocentric.
Is chromatin made of DNA?
Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells. Each nucleosome is composed of DNA wrapped around eight proteins called histones. …