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geniusboy [140]
3 years ago
14

Contrast a plant cell with an animal cell.how can you tell them apart

Biology
2 answers:
alisha [4.7K]3 years ago
4 0

a plant cell has a large centralised vacuole containing cell sap and has a cell wall and an animal cell contains centrioles while a plant cell does not. a plant cell contains chloroplast while an animal cell does not
gtnhenbr [62]3 years ago
4 0
A plant cell has a hard green cell wall while an animal cell has a soft cell membrane
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Many different types of mutations can occur within the body. An individual experiences a mutation that changes a base
Georgia [21]

Answer:

The type of mutation responsible for changing a base in the mRNA strand, without changing the coding aminoacid or protein, is called a <u>silent</u> mutation.

Explanation:

In a silent mutation occurs the change of a nitrogenous base in one of the codons that encodes an aminoacid, without changing the aminoacid or altering the structure or function of the protein to be synthesized.

In this type of mutations the change of the base does not mean the change of the aminoacid, because some aminoacids can be coded with more than one codon. In the case of Leucine, the codons that encode it are CUU, CUC, CUG or CUA, so even if a base changes, the final protein will be the correct one.

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  • <u><em>Missense</em></u><em>: the change of the base in the DNA chain implies the change of the codon in the mRNA and of the encoded aminoacid, in that way a structural and functional alteration of the synthesized protein occurs. </em>
  • <u><em>Nonsense</em></u><em>: the change in the nitrogenous base in the DNA leads to the coding of a termination codon, so that the protein is ultimately incomplete.</em>
  • <u><em>Insertion</em></u><em>: in this case there is the addition of more nitrogenous bases to the DNA chain, with respect to the original one.</em>
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CHIMPANZEES. RECKONED to be the most-intelligent animals on the planet, chimps can manipulate the environment and their surroundings to help themselves and their community. They can work out how to use things as tools to get things done faster, and they have outsmarted people many a time.

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