Dictionary » S » Sequences

Sequences

sequence

The noun: the order in which subunits appear in a chain, such as amino acids in a polypeptide or nucleotide bases in a dNA or rNA molecule.

The verb: To find out in what order the subunits appear in the chain.


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Please check my answers.

... was used as evidence to support the idea? A. observations of nature B. laboratory experiments C. extensive fossil collocations D. genetic sequences I think the answer is A.

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by moondisyko
Fri Apr 04, 2014 9:00 pm
 
Forum: Evolution
Topic: Please check my answers.
Replies: 1
Views: 1207

cladograms

Here is a task: Look at the picture - you see three DNA sequences from three species that are related. Based on that sequence only, draw a cladogram that best represents their relatedness. http://i59.tinypic.com/2jbmgax.jpg My thoughts: Since species ...

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by leeroykincaid
Tue Feb 25, 2014 8:09 pm
 
Forum: Evolution
Topic: cladograms
Replies: 7
Views: 2022

Living or not? (viruses,viroids and prions).

... a distant cousin of Mimivirus. Of its 1,120 protein-coding genes, over 250 have no equivalent in Mimivirus. But, of the genes that are shared, the sequences average about 50 percent identity on the protein level. This means that Megavirus is similar enough that it can be compared to Mimivirus, ...

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by Sumanth001
Sun Dec 08, 2013 12:37 pm
 
Forum: Microbiology
Topic: Living or not? (viruses,viroids and prions).
Replies: 15
Views: 10402

The Selfish Gene

... selection-based evolution; I would agree with you that selection on the products of the genes is going to be more powerful than selection on the sequences alone. The first stages of biogenesis would have involved selection among small replicating molecules of some type(s) - they wouldn't have ...

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by Darby
Fri Nov 01, 2013 12:54 pm
 
Forum: Evolution
Topic: The Selfish Gene
Replies: 2
Views: 1948

Re: Does complementary DNA include only coding sequences ?

Right - another technique, like RACE, is usually needed to extend the sequence across UTRs. If the primers are designed against genomic sequence, they can include UTR sequence, but are unlikely to capture the entire UTRs.

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by jonmoulton
Tue Oct 29, 2013 3:14 pm
 
Forum: Genetics
Topic: Does complementary DNA include only coding sequences ?
Replies: 4
Views: 1938
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