Answer:
<em>it's </em><em>not</em><em> </em><em>my</em><em> </em><em>fau</em><em>lt</em><em> </em><em>if</em><em> </em><em>you</em><em> </em><em>are</em><em> </em><em>wrong</em><em> </em><em>or</em><em> </em><em>not</em><em> </em><em>it's </em><em>your</em><em> </em><em>test</em>
The correct answer here is "cell membrane". Generally it makes sure that nothing enters or leaves the cell, except by its highly guarded "gates", such as ion channels, that let some particles through - but they're very picky about whom to let in!
Answer:Before the reaction, there are 4 oxygen atoms,and after the reaction, there are 4 oxygen atoms.The same is true for hydrogen atoms.So, atoms are not created or destroyed.This supports the claim that matter is conserved during a chemical reaction.
Explanation:
Answer:
The amino acid sequence resulting from the DNA code TACGGGGCGATTGG is Methionine (starting codon), proline, arginine and STOP codon.
Explanation:
DNA is the molecule that contains four nitrogenous bases in its structure, whose sequence determines the order and amount of amino acids that a protein will have.
For protein synthesis to occur, DNA must be transcribed into mRNA, which leaves the cell nucleus for translation to occur in the ribosomes. The sequence of nitrogenous bases of the mRNA is organized into triplets or codons, which determine:
- <em>Initiation of protein synthesis.
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- <em>Sequence and number of amino acids that a protein contains.
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- <em>End or stop of protein synthesis.
</em>
For the given DNA sequence, the corresponding amino acids are:
- DNA TACGGGGCGATTGG
- mRNA AUGCCCCGCUAACC
- Codons AUG-CCC-CGC-UAA-CC
- Amino acids Met - Pro - Arg - STOP
The last two cytosine molecules are not translated because they do not form a codon and because the previous codon completed protein synthesis.
Answer:
True
Explanation:
If an organism is better suited for its environment, it will be more likely to survive.