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Goshia [24]
3 years ago
5

For each of the traits described below, indicate if it is true only in archaea, only in bacteria, in both archaea and bacteria o

r in neither group.
Biology
1 answer:
timofeeve [1]3 years ago
7 0
I found the full exercise on the internet. Below are the traits and answer:

1) The cells do not contain ribosomes. - both archaea and bacteria 

2) Most of the microorganisms in the group have a cell wall. - both archaea and bacteria

3) When proteins are being made, the first amino acid is a methionine. - 

only in archaea (in bacteria is a derivate of it N-formylmethionine)

4) They have mitochondria. - in neither group

5) The fatty acids found in the cytoplasmic membrane have branching chains. only in archaea (f<span>atty acids in bacteria have straight chains)</span>

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2. Copy/paste and align the first 5 bases of all introns. Which bases are conserved near intron start ("donor site")?
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Answer:

This question is incomplete

Explanation:

Introns are non-coding regions of a DNA that removed by RNA splicing prior to translation. Alignment is usually done between sequences to see and understand the identity and similarity between two or more sequences.

A region/base is said to be conserved if there is  NO change in any base in that particular region. A multiple sequence alignment (MSA) can be used to align the donor sites of all the introns to see the bases that have not "changed" (and still remained in there exact position) hence conserved across all the donor sites.

NOTE: The donor site of an intron is the 5' end, thus the first five bases in the 5' end are to be used here

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The structure of aba is shown below. why was this a suitable substitution for a cys residue? under what circumstances would it n
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How many times does a child have to be vaccinated against tuberculosis​
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