MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Chromatin

Subunit of ch...

Question

Subunit of chromatin composed of a short length of DNA wrapped around a core of histone proteins is called

A

Nucleosome

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

B

Chromatin fiber

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

Chromosome

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

None of the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Nucleosome
Double-stranded DNA loops around histones twice, forming the nucleosome, which is the building block of chromatin packaging. DNA can be further packaged by forming coils of nucleosomes, called chromatin fibres. These fibres are condensed into chromosomes.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Pick the incorrect statements among the following:
(i) A typical nucleosome contains 400 bp of DNA.
(ii) The positively charged DNA is wrapped around the negatively charged histone octamer to form a structure called nucleosome.
(iii) Histones are rich in the basic amino acid residues like asparagine and valine.
(iv) The packing of chromatin at higher level requires an additional set of proteins that collectively are referred to as non-histone chromosomal proteins.

Q. Assertion :Histones are basic proteins of major importance in packaging of eukaryotic DNA. DNA and histone comprise chromatin forming bulk of eukaryotic chromosome. Reason: Histones are of five major types

H 1

H 2 A

H 2 B

H 3

H 4

.

Q. Assertion :DNA is associated with proteins. Reason: DNA binds around histone proteins that form a pool and the entire structure is called as a nucleosome.

Q. The DNA is wrapped around histone octamer and it appears as beads-on-string when seen under electron microscope. These beads in chromatin fibre further

Q. Histone proteins help in wrapping up the DNA.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Nucleus

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon