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krek1111 [17]
3 years ago
13

2. Which of the following is not used to study plate tectonics:

Biology
1 answer:
nekit [7.7K]3 years ago
6 0

Answer:

c) sand dunes

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Why are enzymes important for a healthy body?
Aleksandr-060686 [28]

Answer:

Enzymes are involved in the formation and composition of every cell in the body. Thus they also control the working of every organ and even the brain - the control center. They are involved in the breakdown, absorption, distribution and circulation of various nutrients entering the body.

Explanation:

6 0
3 years ago
What is electrophoresis? Why does it allow scientists to separate pieces of DNA?
attashe74 [19]
Genetic fingerprinting – the analysis of DNA in order to identify the individual from which the DNA was taken to establish the genetic relatedness of individuals. It is now commonly used in forensic science (for example to identify someone from a blood sample) and to determine whether individuals of endangered species in captivity have been bred or captured from the wild. 
<span>•DNA sequencing – the determination of the precise sequence of nucleotides in a sample of DNA or even a whole genome e.g. the Human Genome Project. </span>

<span>The process of electrophoresis: </span>
<span>DNA is chopped, close to the VNTR regions, into fragments using restriction enzymes. The DNA fragments are placed on the agarose gel and a direct current is applied continuously to the gel. The DNA fragments are attracted to the anode. The shorter the fragment, the faster it moves. </span>
<span>The fragments are transferred onto an absorbent paper placed on top of the gel. The paper is heated to separate the 2 strands in each DNA molecule. Complementary probes which have a radioactive phosphorus isotope are and this pair up with the DNA strands. The paper is placed on an X-ray film and the film goes dark due to radiation emitted by the probes. Now we end up with a pattern of dark stripes on the film matching the positions reached by the fragments in the agarose gel.</span>
8 0
3 years ago
Which characteristic allows carbon to form chains and rings with other carbon atoms?
Vlad1618 [11]
<span>Carbon is the only element that can form many different compounds. Each carbon atom can form four chemical bonds to other atoms. This allows it to form rings and chains.</span>
3 0
2 years ago
During aerobic cellular respiration, one molecule of glucose is used to produce how many ATP molecules?
mart [117]
For the first question, I believe it's 36. For the second question, it is oxygen, as oxygen is essential for aerobic processes. For the last question, the summarized cellular respiration equation is the 2nd one.
3 0
3 years ago
Read 2 more answers
.What does a reviewer do during peer-review?
Gnesinka [82]
They check for mistakes and bias
4 0
2 years ago
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