Protein coding features can emerge de novo in non coding transcripts, resulting in emergence of new protein coding genes. Studies across many species show that a large fraction of evolutionarily novel non-coding RNAs have an antisense overlap with protei
Mutations occur with varying frequency and at different locations within the entire genome of an organism. In multicellular organisms, the DNA is packaged by certain proteins, including the so-called histones. Modifications of these proteins affect how tightly the genetic material is packed. Researchers...
"As an organism grows from a single fertilized egg to form all the different tissue types, these oncogenes, including Src, evolved to control these normal events," said Erik Lundquist, professor of molecular biosciences and associate vice chancellor for research at the University of Kansas. "To ...
节选后的文章对于“evolve”表述得并不明确，而且个人认为节选的文章具有误导性，不能明确选出该标题 ...
The latest research on robots is often described as if it were a step on the inexorable march toward a robot apocalypse straight out of the Terminator films. While there are risks in developing artificial intelligence that need to be taken seriously, rea
—How long do new species take to evolve? In bacteria, the very meaning of "parent" and "child" gets complicated. Bacteria are single-celled organisms that predominantly replicate asexually, by dividing. When a cell splits in two, "the parent kind of becomes the children," said ...
We serendipitously discovered that a previously generated two-gene operon (the single-copy transgene oxSi487, ref.11 Fig. 1a and Supplementary Fig. 1a) has an exceptional capacity for retaining changes in gene expression for many generations. This transgene referred to here as T encodes a bicistr...
A virus is made up of biomolecules, contains genes in the form of DNA or RNA, and can reproduce. Is a virus a living organism? Why or Why not? Explain in detail. Why do RNA viruses evolve faster than DNA viruses? What are examples of DNA and RNA viruses?
Although we know this is at times possible, the brain’s main priority is to keep the organism or the body as a whole, functional and alive. The cognitive-behavioural dimension When the gut communicates with the brain, it is purposeful, and it demands an immediate reaction. Intense emotions...
James Mallet and other proponents of ecological speciation have hypothesized that ordinary populations within ordinary animal species may be poised to speciate as easily as a single population might evolve a new adaptation—'speciation is easy' (Mallet, 2008; Schluter, 2009; Doebeli, 2011). Here ...