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
olganol [36]
3 years ago
15

How can dna sythesis occur in both directions from a replication origin

Biology
1 answer:
rosijanka [135]3 years ago
3 0

at the replication fork, you have 2 DNAP's. One is on the leading strand and the other is on the lagging strand. Now you into a problem of DNAP's not moving in sync with each other. The synthesis on the leading strand is much faster than the lagging strand because the lagging strand needs to make an RNA primer and then extend the primer (okazaki fragment synthesis/maturation). So DNA synthesis will not be complete on one of the strands.  

There is a model that explains what happens during DNA replication. The model is called the Trombone model.  

You have 2 DNAP's linked together by a tau protein (2 tau proteins) and both tau proteins are bounded to beta clamp loader. This makes the holoenzyme complex.

You might be interested in
In Linnaeus time all life was divided into witch two kingdoms
lord [1]
Hi there!

In Linnaeus's time, all life was divided into animals & plants. 
5 0
3 years ago
Describe the components of ATP. What is the purpose of ATP in the cell? How is it recycled?
Brut [27]

Answer:

Adenosine triphosphate or ATP is the energy-providing molecule of the organisms which produce energy during the metabolic process. Therefore this is also considered as the energy currency of the cell.

As a biomolecule, it is made up of three components: a ribose sugar, adenine nitrogenous base and three phosphate groups. Its adenine base is attached to the 9th nitrogen atom of the 1′ carbon of the sugar. and three phosphate group are attached to the 5' carbon atom of the sugar.

High energy is stored in the three phosphate bonds which when broken down to adenosine diphosphate and monophosphate releases energy. New ATP is generated through the process of phosphorylation in mitochondria and chloroplasts in plants. The ATP production reaction is catalyzed by ATP synthase

8 0
3 years ago
Why do cells need to replicate their DNA?
ch4aika [34]

Answer:

Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell. ... Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA.

Explanation:

Cells must replicate their DNA before they can divide. This ensures that each daughter cell gets a copy of the genome, and therefore, successful inheritance of genetic traits. DNA replication is an essential process and the basic mechanism is conserved in all organisms.

<u><em>Laroi</em></u>

4 0
3 years ago
Read 2 more answers
What is one evolutionary advantage angiosperms have over gymnosperms?
leva [86]
 Angiosperms<span> contain both seeds and flowers, while </span>gymnosperms<span> only contain seeds. </span>
7 0
3 years ago
Read 2 more answers
__________ constitutes about 80% of circulating antibodies in plasma.
CaHeK987 [17]
I honestly think it Lymph,
4 0
3 years ago
Other questions:
  • During which stage of mitosis do the centrioles move to the opposite poles of the cell?
    13·1 answer
  • Heat _____. A. is a measure of energy B.cannot move through a vacuum C. is the internal energy of matter D. is the same as tempe
    6·2 answers
  • In which step of the scientific method would you need controls?
    9·1 answer
  • Which organisms appeared on earth first
    6·2 answers
  • Science differs from other disciplines such as history and the arts because science relies on?
    11·2 answers
  • The primary RNA transcript of the chicken ovalbumin gene is 7700 nucleotides long, but the mature mRNA that is translated on the
    9·1 answer
  • _____ discovered significant differences between organisms originally categorized under the Monera kingdom; thus, these organism
    7·2 answers
  • Part A - Identifying X-linked inheritance in pedigrees
    5·1 answer
  • 15. These photosynthetic organisms can live in extreme environments, sometimes harnessing energy from chemicals, and are among s
    6·1 answer
  • What is one of the four main points of darwins theory of evolution by natural selection​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!