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pychu [463]
3 years ago
10

UHH...help please? ^^ TANKS!!

Biology
1 answer:
blagie [28]3 years ago
3 0
The answer is choice A
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Why is insertion/deletion of three bases less deleterious than insertion/deletion of one or two bases.
Ede4ka [16]

Answer:

Explanation:

Insertion/deletion of 3 base which is a condon will be less fathal because only one amino acid will be missing from the protein of which the gene codes for.

If one codon is deleted it will still be the same but might cause a disease for example in cystic fibrosis one amino acid, 508th Phenly alanine is missing in the CFTR protein. They severity of diseases caused by Insertion or deletion is increased as the number of condon are more.

However, if only one or two is deleted/inserted then all the codons will shift causing them to be in different groups which may form a totally different amino acids as seen in frameshift mutation. This is more dangerous.

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3 years ago
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Hitman42 [59]
There are several differences between the two, but the biggest distinction between them is that
—————————————————————
eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead.
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In a short sentence explain why biodiversity is SO important?
lorasvet [3.4K]

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Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play.

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3 years ago
PLEASE HELP!!!!!
Brut [27]

Answer:

hmm thats a hard one

Explanation:

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3 years ago
Where does the RNA cap go? The tail?
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Answer:

The post-transcriptional modifications in the mRNA produced as a result of the transcription in eukaryotes provide many advantages to the mRNA.

The two post-transcriptional modifications are the addition of  7-methylguanosine cap at 5' end of mRNA called capping whereas the addition of the poly(Adenyl) tail at 3' end called tailing.

The advantages of capping are:

1. Protection of nascent mRNA from the degradation.

2. Recognition by transcription factors helps in translation.

The advantages of tailing are:

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2. Transcription termination

3. Export of the mRNA from the nucleus  

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