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sveta [45]
3 years ago
9

What is the role of a scientist

Biology
2 answers:
solong [7]3 years ago
6 0
One is to involve exercising curiosity in order to ask questions and seek answers about the universe.

konstantin123 [22]3 years ago
6 0
QUICK ANSWER

Scientists have numerous roles in society, all of which involve exercising curiosity in order to ask questions and seek answers about the universe. This involves using the scientific method to construct a testable question, make a prediction, perform tests and interpret the resulting data.

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Draw a DNA molecule that has five randomly spaced restriction sites for a spedific palindrome. How many fragments would be produ
Bond [772]

Answer:

Figures attatched

Explanation:

1. Restriction enzymes cut the DNA in specific places of a specific sequence. Each restriction enzyme has different sequences of recognition.

2. Palindromic sequences are sequences that can be read the same in both senses (3' and 5'), for that reason restriction enzymes can cut both DNA strands

Now, for the first image: if a molecule has 5 restriction sites that are known for a single restriction enzyme, the enzyme will cut the DNA 5 times. If you see the image, the number of fragments is the number of restriction sites +1. In this case, it is 5+1=6 DNA fragments.

In the case of two different palindromic sequences, two different restriction enzymes recognize different sequence. If just one enzyme is present, the only cutting site will be the one that has the palindromic sequence recognizable. So, the number of fragments will be 1+1=2 DNA fragments (figure 2)

7 0
3 years ago
Which of the following is common to the nervous, endocrine and respiratory systems?
Leno4ka [110]

Answer:

I think the answer is C. regulation.

Explanation:

I hope this helps! Correct me if I am wrong.

8 0
2 years ago
Why will the footprints left by Apollo astronauts last for centuries?
Nastasia [14]

Due, to know life on the moon there would be nothing to mess with the footprint, but the main reason why these footprints are going to last centuries is because "there is no weather." Since how there is no weather on the moon which means no wind there is no factors that could affect the footprint.

Hope this helps!

7 0
3 years ago
Read 2 more answers
Unlike perennials, annuals
bixtya [17]
The answer is C are limited to life in a single year
4 0
3 years ago
Read 2 more answers
Do y’all know what to do for this?
Rus_ich [418]

Answer:

It just seems like you're supposed to give four pieces of evidence of natural selection. If you're still confused, you can always ask your teacher.

Explanation:

7 0
2 years ago
Read 2 more answers
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