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Flura [38]
3 years ago
8

Which human activity does not affect the earth system?

Biology
2 answers:
Gekata [30.6K]3 years ago
7 0

Answer:

Use of solar energy or wind energy.

Explanation:

The human activity that does not affect the earth system can be conversion of solar energy, wind energy etc. Since solar energy is produced by sun, it causes no harm to the earth system. Same as wind energy which is collected from the blowing winds by the help of windmills.

ser-zykov [4K]3 years ago
5 0
Converting solar energy does not affect the earth system
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3 years ago
Which is an example of an insertion mutation that changes all of the amino acids that follow the mutation?
astra-53 [7]

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.



7 0
3 years ago
Read 2 more answers
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