Higher-order folding involves association of the dna with a nuclear ___, which contains large amounts of _ and ___.

1 answer:

4 0

Higher-order folding involves association of the DNA with a nuclear scaffold, which contains large amounts of Histone H1 and Topoisomerase II.

<h3>What is Histone?</h3>

Histones are highly basic proteins abundant in lysine and arginine residues that provides structural support for a chromosome. They are found in eukaryotic cell nuclei. They act as spools around which DNA winds, which gives the chromosome a more compact shape, to create structural units called nucleosomes. Nucleosomes in turn are wrapped as 30-nanometer fibers that form tightly packed chromatin. There are five types of histones namely H2A, H2B, H3, H4 and H1 linker histone. Within a nucleosome, they exist as two dimers of (H2A-H2B) and a complex of (H32-H42) eventually forming an octamer.

<h3>What is Topoisomerases?</h3>

Topoisomerases are nuclear enzymes which play essential roles in DNA replication, transcription, chromosome segregation, and recombination.

To learn more about Histone and Topoisomerases, click the given link brainly.com/question/27293176

#SPJ4

You might be interested in

Differences in traits such as hair texture are determined by differences in -

k0ka [10]

Answer:

genes or genetic traits

Explanation:

Differences in traits such as hair texture are determined by differences in<u> genes or genetic traits</u>. These genes determine what physical characteristics a human will possess. They are determined by the parents of an offspring and vary from person to person

5 0

3 years ago

Phylogenetic tree of ginseng

Shalnov [3]

Can you explain more?? please. /////:/

5 0

3 years ago

Genes have many regulatory sites that control gene expression, one of these is called the enhancer.

madam [21]

Answer:

a) The enhancer site is a distal control site many nucleotides upstream from the promoter site, and activates the initiation complex of transcription.

Explanation:

Enhancers are the regulatory DNA sequences that are generally located quite away from the coding regions of a gene. These sequences are mostly present upstream of promoter sequences. Enhancers regulate the gene expression by stimulating the formation of an active transcription initiation complex and thereby, increase the rate of RNA synthesis. Enhancers also serve as the binding site for specific regulatory proteins. These proteins bound to the enhancers then activate transcription by interacting with the proteins bound to the promoters.

8 0

3 years ago

How does the plot of act 1 of Henrik Ibsen’s A Doll’s House parallel the plots of more traditional plays?

allochka39001 [22]

<span>B. As in most traditional plays, the plot of act 1 of A Doll’s House is designed to provide exposition and build up the tension of the play.
</span>
The plot of act 1 of Henrik Ibsen’s A Doll’s House parallel the plots of more traditional plays by designing to provide exposition and build up the tension of the play.

4 0

4 years ago

How do shoebills respond to changes in external temperature when it's too cold

grigory [225]

The adaptation of shoebills responds to changes in external temperature when it's too cold in their environment.

<h3>What changes occur to Shoebills in cold?</h3>

Shoebills have adapted long toes with no webbing which helps them to balance on the swampy vegetation while stalking prey. There are few predators of shoebill storks. Young and eggs may be taken by nest predators but shoebill storks can defend their young and build nests in areas unreachable to many predators. Shoebills eat big fish such as lungfish and catfish This bird eats crocodiles and they hunt like bosses of the swamp. The Shoebill will stand there motionless like a statue. Some birds fluff up their feathers and open up their wings to catch a breeze that helping them cool.

So we can conclude that If the temperature is very cold then the Shoebill can't go outside.

Learn more about it shoebills here: brainly.com/question/11408596

#SPJ1

3 0

1 year ago

Higher-order folding involves association of the dna with a nuclear _____, which contains large amounts of _____ and _____.

Higher-order folding involves association of the dna with a nuclear ___, which contains large amounts of _ and ___.