What is the chromatin reticulum?
Chromatin is a complex of DNA, RNA, and protein found in eukaryotic cells. … DNA wraps around histone proteins, forming nucleosomes and the so-called “beads on a string” structure (euchromatin). punineep and 27 more users found this answer helpful. Thanks 16.
What is the difference between chromatin reticulum and chromosome?
The chromatin further condenses to form chromosomes. … This means chromatin is lower order of DNA organization whereas chromosomes are higher order of DNA organization.
What does chromatin look like?
Under the microscope in its extended form, chromatin looks like beads on a string. The beads are called nucleosomes. Each nucleosome is composed of DNA wrapped around eight proteins called histones.
Where is chromatin reticulum found?
Chromatin is a complex of macromolecules composed of DNA, RNA, and protein, which is found inside the nucleus of eukaryotic cells. Chromatin exists in two forms: heterochromatin (condensed) and euchromatin (extended).
Does chromatin have RNA?
Whether RNA itself plays a direct structural role in chromatin is, however, not known. Here, we report results indicating that RNA plays a general structural role in eukaryotic chromatin. Our results indicate that purified chromatin contains significant amounts of RNA (2%–5% of total nucleic acids).
What is the main function of ribosome?
Ribosomes have two main functions — decoding the message and the formation of peptide bonds. These two activities reside in two large ribonucleoprotein particles (RNPs) of unequal size, the ribosomal subunits. Each subunit is made of one or more ribosomal RNAs (rRNAs) and many ribosomal proteins (r-proteins).
What is the importance of nucleus class 9th?
The nucleus is the most important organelle in the cell. It contains the genetic material, the DNA, which is responsible for controlling and directing all the activities of the cell. All the RNAs needed for the cell are synthesised in the nucleus.