<span>Roanoke Island is best known for its historical significance as the site of Sir Walter.</span>
Answer:
Option-1
Explanation:
DNA sequencing refers to the method which analyses the DNA and determines the sequence of nucleotide.
The Sanger method uses the same things used during the DNA replication process but an additional thing is also there called the dideoxynucleotides attached with fluorescent dye.
When thus ddNTP binds to the growing chain, then the replication process stops as ddNTP lacks the -OH group at 3'position.In the given question, since only 3 bands shows the result but one band does not it means that the florescent label has not been recognized as ddNTP label.
Thus, the problem lies in the florescent label and therefore option-1 is correct.
Helmut is about to give a presentation to his class, but he's very nervous. He feels he might explode or pass out. When the members see Helmut in front of them, they are unlikely to be able to know how nervous he feels.
<h3 /><h3>How to make a good presentation</h3>
It is essential that the speaker is confident about what he will present to his audience, so it is ideal to carry out research on the topic, base his ideas on reliable sources and carry out his presentation in a safe way.
You can also use presentation support materials to generate more interaction, such as visual aids such as posters and slides to make the presentation more dynamic.
Nervousness during a presentation for many people is a common reaction, so the ideal is to consciously manage your anxiety, demonstrating to your audience your effort and knowledge about the topic.
Find out more information about presentation here:
brainly.com/question/25562972
The correct answer is that all of these are true events.