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zhuklara [117]
2 years ago
7

What occurs at step 1 in the diagram

Biology
1 answer:
Mashutka [201]2 years ago
8 0

Answer:

Enzymes cut the isolated DNA into fragments

Explanation:

These enzymes are called restriction enzymes. Each enzyme identifies a unique sequence and cuts the DNA in a unique way (some within the sequence some outside the sequence) and also leaving either blunt or hanging ends. An example of a restriction enzyme is the famous EcoRI

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Explanation:

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2. Primases are the enzymes helps in the synthesis of short RNA sequences used as primers in replication. Non functional primase leads to no primer synthesis.  

3. DNA Polymerase is an enzyme helps in the addition of new nucleotide to the growing strand in replication. Non functional DNA polymerase prevents the strand growing as no new nucleotides were added.  

4. Helicases are the enzymes helps in the separation of double strands into single and helps in each strand to be copied. Non functional helicase leads to prevention of unwinding of strands and replication inhibition.  

5. ligase is an enzyme that joins nicks(small gaps) in the DNA strand by creating ester bond. Non functional ligase leads to unjointed gaps of lagging strand.  

6. Single strand binding proteins(SSB's) are the small proteins that binds to the single strands of DNA and holds them in a place not to get together while replicating. Non functional SSB's leads to parental strands come back together and prevents replication.

4 0
3 years ago
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saveliy_v [14]

Answer:single replacemt

Explanation:

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2 years ago
Compare and contrast the independent and dependent variables in an experiment. Give an example of each.
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I am 95% sure

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