1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lemur [1.5K]
3 years ago
9

Why does DNA look like a folded thread? HELP ME PLEASE!!!!

Biology
1 answer:
ololo11 [35]3 years ago
8 0

Answer:

During DNA packaging, long pieces of double-stranded DNA are tightly looped, coiled, and folded so that they fit easily within the cell. Eukaryotes accomplish this feat by wrapping their DNA around special proteins called histones, thereby compacting it enough to fit inside the nucleus

You might be interested in
How does a noncompetitive inhibitor decrease the rate of an enzyme reaction?
Wittaler [7]

Answer :B. By changing the shape of the enzyme's active site.

check the attachment

Explanation: This is a type of inhibition , in which a molecule binds to another part of the enzyme instead of the  active site.

On binding, it disrupts the  normal hydrogen bond and hydrophobic   interactions holding the enzyme molecule in its three dimensional shape, therefore distorting the conformation and   ACTIVE SITE of the  enzyme (changed it shape).

Since the active site is the precise location enzyme must bind with substrates for enzymatic reactions,this makes the enzyme not fit  for binding with the substrate, therefore  the efficiency  is reduced. No substrate-enzyme complex, and hence no substrate-product  complex for the release of  products, this brings down the turnover rate and eventually

<u>the rate of reaction of the enzyme</u>

Thus, the enzyme function is totally blocked, even in high concentration of the substrate,

Download docx
4 0
3 years ago
How does pinocytosis work
Scrat [10]

Answer:

Pinocytosis is the mechanism by which living cells consume liquid droplets. Endocytosis is the general mechanism by which cells ingest foreign substances and collect them in special membrane-bound vesicles within the cell. Pinocytosis is one form of endocytosis.

3 0
3 years ago
Select whether the description is a Bacteria, Archaebacteria, or Protist. Some will have more than one answer.
Rzqust [24]

Answer:

the major difference is that protists are eukaryotes while bacteria and archea are both prokaryotes. this means that prokaryotes do not have a nucleus, and contain circular DNA.

Explanation:

6 0
3 years ago
5. If an organism has 5 pairs of chromosomes and no crossing over occurs, how many different
Tom [10]

Answer:

In spite of the fact that he didn't have any acquaintance with it, Walther Flemming really noticed spermatozoa going through meiosis in 1882, yet he confused this cycle with mitosis. Regardless, Flemming saw that, dissimilar to during standard cell division, chromosomes happened two by two during spermatozoan improvement. This perception, continued in 1902 by Sutton's careful estimation of chromosomes in grasshopper sperm cell improvement, given conclusive insights that cell division in gametes was not simply customary mitosis. Sutton showed that the quantity of chromosomes was decreased in spermatozoan cell division, a cycle alluded to as reductive division. Because of this cycle, every gamete that Sutton noticed had one-a large portion of the hereditary data of the first cell.

Explanation:

3 0
3 years ago
What do you notice is the main difference between the structure of the connective tissues and the structure of the epithelium? m
AVprozaik [17]

Epithelial tissue lines the cavities and surfaces of organs and blood arteries throughout the animal body, whereas connective tissue supports, links, and divides many types of tissues and organs in the body. This is the main distinction between epithelial and connective tissue.

Cell arrangement: The physical properties of the Epithelial tissue affect how the connective tissue is organized. There are different arrangements of epithelial cells, such as squamous, cuboidal, and columnar, that organize as simple, stratified, pseudostratified, and transitional. Since epithelial cells form from ectoderm, mesoderm, and endoderm, this explains why epithelia line body cavities. Dense irregular connecting tissue is made up of messily organized tightly packed collagen bundles.

Learn more about Epithelial tissue

brainly.com/question/15183169

#SPJ4

3 0
1 year ago
Other questions:
  • Which scientific evidence would show that, for example two species of birds are closely related?
    8·1 answer
  • What are the characteristics of continental tropical air m
    9·1 answer
  • What type of seizure starts in the fingers and progressively spreads up the arm and extends to the leg?
    11·1 answer
  • Help needed please I beg of you
    13·1 answer
  • How does the container size affect a floating paper clip?
    11·1 answer
  • Which is one way that skin helps protect the body from infection?
    8·2 answers
  • Why do you think it can be difficult for scientists to determine whether an apparent relationship between species is an example
    5·2 answers
  • You have more ______ cells in your body than you have human cells.
    7·2 answers
  • Which part of a molecule does which part of a molecule dose sunlight 'excite'?
    11·1 answer
  • Carol and Sam were using the microscope in science class. They used a dropper to put some pond water on their microscope slide.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!