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
kap26 [50]
1 year ago
12

During replication, nucleotide bases are added to DNA strands in a ___ direction(s).

Biology
1 answer:
Alborosie1 year ago
3 0

Nucleotide bases are added to DNA strands in a 5' to 3' direction.

What is DNA replication?

When a cell divides, DNA copies itself through a process called replication.

  • Generally speaking, DNA replication involves uncoiling the helix, strand separation by rupturing the hydrogen bonds between the complementary strands, and synthesis of two new strands through complimentary base pairing.
  • The origin of replication, which is a precise location in the DNA, is where replication starts.
  • From the point of origin, DNA replication is bidirectional.
  • The two parent DNA strands unwind and split apart at the origin of replication to generate two "Y-shaped" replication forks in order to start DNA replication.
  • These unwinding enzymes are known as DNA helicases.
  • The real location of DNA copying is at these replication forks.
  • Proteins that destabilize helices bind to the single-stranded areas to prevent the two strands from rejoining.
  • To reduce stress on the helical molecule during replication, enzymes known as topoisomerases cause breaks in the DNA and then reunite them.
  • The hydrogen bonding of free DNA nucleotides with those on each parent strand results in the formation of new complementary strands as the strands continue to unwind and split in both directions around the entire DNA molecule.
  • The new nucleotides are joined by DNA polymerases using phosphodiester bonds as they align themselves opposite each parent strand using hydrogen bonds.
  • Deoxynucleotide triphosphates, which are made up of a nitrogenous base called deoxyribose and three phosphates, are the actual nucleotides that are aligning through complementary base pairing.
  • Two of the phosphates are withdrawn to provide energy for bonding as the phosphodiester bond forms between the 3' OH of the previous nucleotide in the DNA strand and the 5' phosphate group of the next nucleotide.
  • In the end, two identical DNA molecules are created when each parent strand acts as a template for the synthesis of a complementary copy of itself.

Hence, nucleotide bases are added to DNA strands in a 5' to 3' direction.

To learn more about DNA replication click on the link

brainly.com/question/21265857

#SPJ1

You might be interested in
How does fever indicate that your body immune system it's doing its job?
photoshop1234 [79]
Ur body heats up to kill the bacteria in ur body
7 0
3 years ago
Character displacement differs from resource partitioning because character displacement _________. A. is a fundamental differen
mr_godi [17]

Character displacement differs from resource partitioning because character displacement  is directly linked to the evolution of genotypes that have allowed alternate resource use

<h3>What is genotypes ?</h3>

An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual carries in a specific gene or genetic region are also referred to as the genotype. The number of copies of each chromosome found in that species, also known as ploidy, determines how many alleles a person can have for a certain gene.

In diploid organisms like humans, there are two complete sets of chromosomes, which means that each person has two alleles for each gene. Homozygous refers to a genotype when both alleles are the same. Heterozygous refers to a genotype when there are two distinct alleles.

Phenotype, the observable qualities and attributes of an individual or creature, is influenced by genotype.

To learn more about genotypes  from the given link:

brainly.com/question/12396620

#SPJ4

4 0
1 year ago
What is the mRNA sequence?
Charra [1.4K]

Answer:

please upload the DNA sequence

Explanation:

8 0
3 years ago
Read 2 more answers
What enables a gene to code for different versions of a trait in different organisms?
polet [3.4K]
Any answer choices?......

8 0
3 years ago
The _______ is responsible for absorbing the most UV radiation. a. troposphere b. stratosphere c. mesosphere d. thermosphere
Burka [1]

Answer;

-Stratosphere

The Stratosphere is responsible for absorbing the most UV radiation.

Explanation;

-The stratosphere is the second layer of the atmosphere as you go upward lying between the troposphere and the mesosphere.

-The stratosphere layer also called the ozonic atmospheric envelope, is important to human's life as it contains the ozone layer which absorbs the harmful ultraviolet radiations which emitted from the Sun , and also it is convenient for flying of the planes .

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these factors is an advantage to using credit cards?
    13·2 answers
  • Mrna _____.
    10·1 answer
  • How are unicellular and multi cellular organisms alike/how are they different
    10·1 answer
  • Name two types of evidence used to support the theory of evolution. Explain how scientists use each type of evidence to provide
    9·1 answer
  • Which piece of information would be useful to someone studying evolution, but also to someone trying to identify and classify an
    10·2 answers
  • What does each letter in the acronym F.O.I.L. stand for?<br> F<br> O<br> I<br> L
    7·2 answers
  • 1. The babies of a blue fish and a red fish all have blue and red spots for skin color. This is an example of which of the follo
    9·1 answer
  • Help?!!!!!!!!????!????
    10·1 answer
  • I am thinking of an animal that kind of looks like a raccoon, and starts with an A. With just that information: what is the comm
    10·2 answers
  • 1.What might happen to the Spotted and Barred Owls if humans don't interfere?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!