<span>Once a hypothesis has been formed, it must be
tested. This is done by conducting a controlled
experiment. </span>
It is a half- circle. in pedigree charts circles represent females and squares for males
Slit2 overexpression promoted angiogenic effects in both a laser-induced CNV mouse model and HUVECs and promoted the biological activity of endothelial cells.
- Recent research has provided novel but contrary insight into the function of Slit2-Robo signaling in angiogenesis.
- Although the role of Robo in choroidal neovascularization (CNV) has been studied, the effect of its ligand, Slit2, on CNV development is unclear.
- Laser-induced CNV in Slit2 transgenic and wild-type mice was used to study the effects of endogenous Slit2 on angiogenesis in vivo.
- Fluorescein angiography was performed to evaluate the leakage area of each lesion.
- Plasmid-based gene transfer technology was used to increase Slit2 expression and to study its effects on human umbilical vein endothelial cells (HUVECs) in vitro.
- Laser treatment led to more CNV and vascular leakage in Slit2 transgenic mice compared with wild-type mice.
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Density-dependent limiting factors cause a population's per capita growth rate to change—typically, to drop—with increasing population density. ... Density-independent factors affect per capita growth rate independent of population density. Examples include natural disasters like forest fires.
Answer:
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As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
-mayo clinic - source
Explanation:
