<span>For the first step, you must isolate the cells from the media. The cells contain the DNA so you keep the cells and pellet.
The next step would be a cell lysis which causes the cells to open and the DNA to come out. At this point you would keep the supernatant, as the pellet is the cell membrane and other parts of the cell.
The chelex is to bind to transition metal ions. This would cause and DNases in the cell to become inactive because the metal ion is their cofactor. The pellet in this case would contain the chelex and the DNA would still be in the supernatant.</span>
Answer:
The energy trapped in fossil fuels came from the energy plants converted during photosynthesis. This trapped energy is. chemical ... are using energy for
Explanation:
Answer:
Prezygotic barriers:
1. Habitat isolation
2. Behavioral isolation
Explanation:
Pre-zygotic barriers are the barriers which do not allow the formation of the zygote in the organisms.
The two mechanisms of the pre-zygotic barriers are the:
1. Habitat isolation: the Flycatchers do not share the same habitat which is also mentioned in the question that they live on different islands.
2. The behavioural isolation: the Flycatchers could have evolved the different mating rituals as a result of which the could not interbreed.
Thus, Habitat isolation and Behavioral isolation are correct.
The possible answers are
1. Abiotic environmental
2.Biotic environmental
3.Genetic
<span>4.Pathogenic
</span>
The correct answer is 2.
There are two groups of environmental factors, the abiotic factors like temperature and biotic factors that refer to the effects that living beings have on each other.
<span>The flesh-eating bacteria, Vibrio vulnificus is a living organism affecting another organism by attacking its healthy flesh, therefore this effect is classified as a biotic environmental factor.</span>
Answer:
- Algae preform both photosynthesis and cellular respiration when incubated in the light.
- Algae preform only Calvin cycle of photosynthesis and cellular respiration when incubated in the dark.
Explanation:
Algae do perform photosynthesis and cellular respiration during light just like other plant specie. They use chlorophyll a or b as pigments to collect light energy and drive the process of photosynthesis.
We know that photosysnthesis is basically a two step process i.e light reactions and dark reactions (dark reaction is also called Calvin cycle). So, in dark algae only performs Calvin cycle and shuts off the light harvesting steps of photosynthesis. However, cellular respiration keeps going throughout the life of algae without being affected. We can say that algae share these characteristics with the green plants.
Hope it helps! :)
