Re: tiger shark

On Sep 27, 3:41 pm, Chris Thompson <the_thomps...@xxxxxxxxxxxxx>
wrote:
Great Dayne <ihavethecode...@xxxxxxx> wrote innews:a0caf7f2-9aa5-46a8-9852-d15ec88c3304@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:







http://www.digitaljournal.com/article/190214/Humans_and_Sharks_are_Rela
ted_

Humans and Tiger Sharks have many things in common in a study of shark
and humans genes done by Singapore Researchers.

And according to recent research, this kinship is evident in our DNA,
as at least one shark species possesses several genes that are nearly
identical to those in humans.
Researchers at the Institute of Molecular and Cell Biology in
Singapore have found that that the elephant shark's genome is very
similar to humans and many things common with it than the teleost
(bony skeleton) fishes, which are closer to humans on the evolutionary
tree.
"This was a surprising finding, since teleost fish and humans are more
closely related than the elephant shark is to humans," says lead
author Associate Professor Byrappa Venkatesh.
Venkatesh and his team determined that sets of genes on chromosomes,
as well as genetic sequences are highly similar in the elephant shark
and human genomes.
They also compared with other animals like puffer fish, chickens, mice
and dogs to see whether they resemble human genomes.
They published their findings in the journal PLoS Biology.
The researchers identified 154 genes in humans that matches comparably
with mice, dogs and elephant sharks. The mice and dogs have been found
similar to human genome before, because mammals exhibit similar
characteristics. But to see Tiger Shark resembling humans is a big
surprise for the researchers.
The study showed that sharks and humans do share certain physiological
and biochemical processes. One of them is sexual process.
"A common feature between the elephant sharks, other sharks and humans
is that in all, the fertilization occurs internally, whereas in
teleost fishes, fertilization occurs externally," Venkatesh says.
Many genes compare similarly between sharks and humans involved in the
production of sperm. Both species produce sperm that appears to have
receptors on the tip that allow fusing with a female egg.
Other bony fishes do no have such receptors. Their sperm enter eggs
via a pore called micropyle, which both sharks and humans lack.
Besides this similarity the researchers also found that the shark and
the human immune systems are similar. Sharks have all four types of
blood cells found in mammals.
Sean Van Sommeran, executive director of the Pelagic Shark Research
Foundation in California was not surprised about the shark-human genes
similarities.
"Sharks copulate like mammals and females give birth to live young, so
sharks do have features in common with mammals. It makes sense that
these would show up in the genome."
But he should give credit to the researchers for finding this and
making the results public.
Venkatesh will study further about the elephant shark genome, which he
says are easy to study and relatively small, wants to see how the
immune system develops will help understand the human’s immune
system.
Since sharks are the oldest living jawed creatures with a backbone,
studies on them may even uncover how humans and other mammals
evolved.
It is interesting to find how sharks and humans are related and have
many things in common.

Um. Live birth in humans and live birth in sharks is NOT the same thing.

I knew you robotards would focus on the wrong thing.

First off, they are similar in that they have live birth, but not that
the live birth
is the exact same.

Now and most importantly, the part you glossed over, the DNA evidence
doesn't match your so called evolutionary tree, your nested
hiererarchy.

Evolution is a fraud.

.

Relevant Pages

  • Re: tiger shark
    ... and humans genes done by Singapore Researchers. ... and dogs to see whether they resemble human genomes. ... The study showed that sharks and humans do share certain physiological ...
    (talk.origins)
  • tiger shark
    ... Humans and Tiger Sharks have many things in common in a study of shark ... and humans genes done by Singapore Researchers. ...
    (talk.origins)
  • Re: tiger shark
    ... Singapore have found that that the elephant shark's genome is very ... similar to humans and many things common with it than the teleost ... "A common feature between the elephant sharks, ... genome of the elephant shark, Callorhinchus milii, a chimaera, makes it ...
    (talk.origins)
  • Re: tiger shark
    ... and humans genes done by Singapore Researchers. ... and dogs to see whether they resemble human genomes. ... The study showed that sharks and humans do share certain physiological ...
    (talk.origins)
  • Re: tiger shark
    ... Humans and Tiger Sharks have many things in common in a study of shark ... and humans genes done by Singapore Researchers. ...
    (talk.origins)
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