Answer: The correct answer is : The state of the DNA that is transferred from one organism to another is Naked DNA.
Griffith's experiment went like this:
* Rough strain
* do not cap
Smooth strain
* capsule
* virulent (pathogenic) avirulent
Through DNA-mediated transformation, bacteria enter the DNA
Smooth strain (capsule) -> killed the mouse
Rough strain (no capsule) -> no effect on mouse
Heat killed smooth strain -> no effect on mouse
Heat killed smooth strain + living rough strain mixed -> killed the mouse
<span>They are both invertebrates.</span>
Cryptzoology is not considered a science, because some don't take it seriously, and scientists do not have a perfect explanation for it. So it is considered a psuedoscience.
By injecting Mesenchymal Stem Cells with ability to express high amount of Akt or protein kinase B in myocardium, researchers witnessed restored cardiac function and inhibition of ventricular remodeling. The effect was seen after two weeks of administration of cells. The culture containing hypoxic Akt-MSCs (conditioned medium) inhibits apoptosis or cell death induced due to hypoxia. Also, it triggers in vitro contraction of cardiomyocytes, the cardiac cells specifically responsible for contraction function.
The desired functional improvement can occur in short time which is less than 72 hours, the reason for which was hypothesized as paracrine action of cells. Hypothesis was proved by upregulation of genes that code for factors responsible for above mentioned effects (apoptosis and contraction). The factors are FGF-2, VEGF, HGF etc.
Learn more about stem cells -
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Answer:
33
Explanation:
Gametes (sperm or egg) have half the chromosome of a diploid cell. That's why they are haploid cells.
If chromosomes come from a cell with 66 chromosomes, sperm will have 66/2 = 33.
That's why us humans have 46 chromosomes, but our egg or sperm has only 46/2 = 23 chromosomes.
