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
Wewaii [24]
3 years ago
12

DNA can make exact copies of itself through replication because the nitrogen bases ALWAYS pair

Biology
1 answer:
Rainbow [258]3 years ago
7 0

*What does replication mean?

Replication means to make an exact copy of itself. Like clones, or identical twins.

*Why would a cell need to replicate (make copies) of its DNA?

Our cells are always dividing and making new cells. Replication occurs before a cell divides so that each new cell will have the exact DNA as the original (parent) cells. Replication ALWAYS occurs in the nucleus of the cell.


Because of DNA's structure it can be copied or replicated. Each strand of the DNA double helix has all the information needed to reconstruct the other half by base pairing. Adenine will bond with thymine and guanine will bond with cytosine.


In Eukaryotes, DNA replication occurs at hundreds of places in both directions at the same time. It has been found to only take 3 minutes for a strand of DNA to be copied.


Replication is also very accurate. 1 error per 10,000 paired nucleotides. The cell has enzymes that proofread DNA and repairs errors as it builds the new strands of DNA during replication.


GOAL OF DNA REPLICATION:


Parent (original) DNA will separate at the hydrogen bonds where the nitrogen bases are attached into 2 single strands. Imagine taking a ladder and sawing it down the middle through all the steps.


Those half strands will make templates for the new strands to be made.


Now the original nitrogen bases no longer have their pair next to them.


New nitrogen bases will come in and fill the spots following base pairing rules (A-T, G-C)


2 (two) new strands of DNA will be created identical to the original.


Each of the new strands will have HALF of the ORIGINAL, and HALF brand NEW.


You might be interested in
What the number 42 to u<br>​
Sergio039 [100]
The number 42 can be the 42 number ones
6 0
3 years ago
plants and animals that live in the ocean habitat must have adaptations which allow them to survive in very cold with a minimal
Ivanshal [37]
This is true. whats the question?
7 0
2 years ago
A person has an infection and his phagocytes respond appropriately by releasing pyrogens, thereby resetting the body's thermosta
timama [110]
Shivers, thereby producing heat
3 0
3 years ago
What abiotic and biotic factors characterize biones?
Vika [28.1K]
Biomes are described in terms of abiotic factors like soil type and climate, and biotic factors factors like plant and animal life. 1. Latitude and the heat transported by winds are two factors that affect global climate. 2. Other factors, among them an areas proximity to an ocean or mountain range also influence climate.
7 0
3 years ago
Which of these is not composed of organic chemicals examples?
MAXImum [283]
<span>The answer would be Minerals. I now this answer is right. </span>
7 0
3 years ago
Other questions:
  • "Explain if a person were to consume an apple where would digestion begin. Then explain in detail how the apple would begin to b
    7·2 answers
  • Which statement best describes the breakdown of food in the digestive system?
    13·1 answer
  • The somatosensory cortex is responsible for processing ________.
    5·1 answer
  • How did Stanley Miller experiment in 1953 influence scientific thinking about the Irgun of life
    12·1 answer
  • Number the steps of the binary fission process in the correct order. . Step 1 Cell wall or membrane forms. 2. Step 2 Cell grows
    10·2 answers
  • PPLLLZZZZ HELP ME!!! I AM TIMED!! WILL REWARD!!!
    14·2 answers
  • Why are cellular respiration and photosynthesis considered opposite reactions
    6·2 answers
  • What triggers the production of glucose-regulating hormones?
    15·1 answer
  • Which best describes the development of penicillin?
    8·2 answers
  • The relative amounts of each nucleotide base are tabulated here for four different viruses. Which virus has a double stranded RN
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!