Questions tagged [genomes]
The entirety of an organism's hereditary information.
17
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Which organism has the smallest genome length?
Which animal/plant/anything has smallest length genome?
- 371
13
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1
answer
707
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What limits chromosomal length?
What are the upper and lower limits for chromosome length? Are these limits different in different species or kingdoms? If there is any limit, which cellular or molecular factors are reasons?
- 2,274
5
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2
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Where can I find the genome of the L-strain coronavirus and the S-strain coronavirus?
I read an interesting article about two strains of the coronavirus:
https://www.newscientist.com/article/2236544-coronavirus-are-there-two-strains-and-is-one-more-deadly/
I would like to know how the ...
- 161
0
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2
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86
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How can I classify the 3 clades(S, G, V) of the coronavirus that are found on GISAID?
On GISAID they classified the corona using 4 clades(S, G, V, Other).
I would like to know exactly how these genomes were classified for my research.
So how do you classify a coronavirus genome as ...
- 161
11
votes
3
answers
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What is the strand specificity of a reference genome?
It's a simple question but I've come across many people who have this question, is the reference genome Positive of Negative strand? Indeed, I've had heated arguments over the same issue.
So here's ...
- 1,135
6
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1
answer
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Why is it harder to sequence plant genomes than animal genomes?
Plants seem to be less complex organisms than animals, but despite that there are less plant genomes sequenced. Is that because plant genomes are more complex, for example in terms of regulatory ...
- 219
5
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1
answer
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Variations in Genome Sizes
Why is there wide variation in genome size amongst groups of protists, insects, amphibians and plants, but less variation within groups of mammals and reptiles?
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4
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4
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Is our genome decaying (see "Genetic Entropy"), and, if so, is this evidence for our genome being "young"?
In the book Genetic Entropy & the Mystery of the Genome the author says that the genome cannot be old because the genome is "decaying". Decay is a very subjective term, but in this case he means ...
- 187
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2
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Why is the frog genome so much larger than a fish's?
As we have heard in the summaries of the human ENCODE project, 80 per cent of junk DNA appears to have an essential function. Many fish have a genome with only one tenth the size of a usual vertebrate ...
- 3,850
3
votes
1
answer
177
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Interbreedability between current humans and his ancestors
I want to know the first point of time in the past when genomes have diverged so far from modern human genomes so that they both (human and ancestors) are not interbreeadable anymore and can be seen ...
- 133
3
votes
2
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Why does the gc content deviate from 50% in prokaryotes
I have read quite some articles but I can't figure out the main reason for gc content deviation in prokaryotes. In eukaryotes I can understand it, because the genome isn't composed at random, like ...
- 2,410
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1
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What does genetically tractable strain mean?
I want to study the properties of Pyrococcus Furiosus in surving to gamma irradiation by exploiting the analysis of DNA sequencing data as a bioinformatics study. Before learning how to analyse this ...
- 443
3
votes
1
answer
93
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Is There An Initiative To Sequence The Genomes Of Critically Endangered Species?
I realize that there are many isolated efforts to sequence the genome of a particular endangered species such as the orangutan or the snow leopard. However is there a concerted effort to sequence the ...
- 1,713
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0
answers
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What are the causes of gene amplification in archaea?
I was studying this article about Genome Sequencing of a Genetically Tractable Pyrococcus furiosus Strain Reveals a Highly Dynamic Genome in order to try to extrapolate some features that could ...
- 443
1
vote
1
answer
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What is targeted gene disruption?
I am a bit confused about what targeted gene disruption means. I was reading this article in which they compare the Pyrococcus Furiosus genome with a genetically tractable strain P. Furiosus variant ...
- 443
0
votes
1
answer
134
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Simplest Biological Organism? [duplicate]
What is the simplest biological organism from which a DNA sample has been or could be obtained? Could the resulting DNA be processed and examined in such a way that the resulting information would ...
- 107
-1
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1
answer
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Estimate for number of genes changed in speciation between a megafauna parent and child species [closed]
At least in terms of a back-of-the-envelope calculation, what is a believable range for the number of gene changes between parent and child species to represent speciation between species of megafauna?...
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