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Nitella [24]
3 years ago
6

Question 2 (1 point) The cell theory consists of all of the following EXCEPT All cells come from pre-existing cells. All living

things are made up of one or more cells. Cells are the smallest units of life. Cells need energy to survive.
Biology
1 answer:
Zolol [24]3 years ago
7 0

Except: Cells need energy to survive.

That's the Answer.


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What is the main difference between the central nervous system (CNS) and the peripheral nervous system (PNS)?
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The CNS involves the brain and spinal cord and the PNS involves the body nerves.
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Which of the following is similar among all living organisms on Earth? social behavior, physical appearance, cellular function,
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It is all of them. To be alive we all kind of have to have a face or body, we all need cells to help us with our day to day activities and we all need to communicate with other humans so that would be social behavior. 
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Which is an example of an insertion mutation that changes all of the amino acids that follow the mutation?
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Answer:


2) CAG - TTC - ACG mutates to CAG - TTC - ACC - ACG

Explanation:

Insertions are mutations in which extra base pairs are inserted into a new place in the DNA. The number of base pairs inserted can range from one to thousands!

In option no. 1: We see that there is not addition of a single or more than one base, but the new base sequence is different from the original sequence at three places i.e: TTA - CAC - G

In option no. 2: The insertion of three bases ACC has been made exactly after TTC, the whole sequence and arrangement of bases remain same except this insertion.


In option no. 3: The first base of the sequence T is replaced with A, and all other sequence is same. This type of mutation is called substitution in which one base is replaced by other.


In option no. 4: The last base of the sequence C is deleted, and is not present in new sequence. This type of mutation is called deletion in which a base is removed from the sequence.


Conclusion: Therefore, the best option is 2, in which whole codon is inserted in the DNA base sequence.



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In the past 100 years the average temperature in the united states has increased by
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