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kolbaska11 [484]
3 years ago
7

What are the groupings of 3 bases in mRNA sequences called? What does it code for? NO LINKS OR I'LL REPORT

Biology
1 answer:
TiliK225 [7]3 years ago
8 0

Answer:

codons

each codon encrypts a specific amino acid

Explanation:

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Give four causes of mutation
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- DNA codes fail to match accurately.

- The environment.

- Disclosure to chemical or radiation. 

- <span> Mistake in the cellular machinery</span>
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3 years ago
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To trace our maternal lineage, we observe mutations that have accumulated in our mitochondrial dna (mtdna). in the dna isolation
Sergio [31]
In the coding region, natural selection tends to eliminate all of the mutations because of the high importance these regions have. The coding region contains genes that synthesize proteins and the changes in the DNA sequence can have devastating effects on the cell. Therefore, there are very few differences in the sequences of coding regions that can help us trace the lineage.
On the other hand, in the non-coding regions, the mutations often accumulate because they have little effect on the cell and the adaptive value of the organism. This enables us to trace up the lineage by comparing the sequences and seeing the differences in the sequences. 
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3 years ago
____ is required to start a chemical reaction.
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Activation energy is required to start a chemical reaction. Activation energy is the energy needed to allow the reactant to react. Activation energy is measured in Joules (J).
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Masteriza [31]

Answer:

Explanation:

1. Topoisomerase is an enzyme helps in over winding Or underwinding of DNA during replication. Helps in the topological correction. So non-functional topoisomerase leads to tangled DNA and prevents replication..

2. Primases are the enzymes helps in the synthesis of short RNA sequences used as primers in replication. Non functional primase leads to no primer synthesis.  

3. DNA Polymerase is an enzyme helps in the addition of new nucleotide to the growing strand in replication. Non functional DNA polymerase prevents the strand growing as no new nucleotides were added.  

4. Helicases are the enzymes helps in the separation of double strands into single and helps in each strand to be copied. Non functional helicase leads to prevention of unwinding of strands and replication inhibition.  

5. ligase is an enzyme that joins nicks(small gaps) in the DNA strand by creating ester bond. Non functional ligase leads to unjointed gaps of lagging strand.  

6. Single strand binding proteins(SSB's) are the small proteins that binds to the single strands of DNA and holds them in a place not to get together while replicating. Non functional SSB's leads to parental strands come back together and prevents replication.

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3 years ago
The pancreas produces all of the following digestive enzymes except:
ryzh [129]

Answer: the answer is C

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Pancreatic proteases (such as trypsin and chymotrypsin) - which help to digest proteins.

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2 years ago
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