The gel should be placed in the correct direction so that the DNA bands can move.
- DNA is negatively charged due to the presence of phosphate groups, so it can only move towards the positively charged anode, otherwise, it will not move.
- So, when gel electrophoresis is done the side of the gel where the wells have been created and DNA samples have been loaded is placed at the side of the cathode, whereas the other side is connected to the anode.
- When the current flows, the DNA fragments also move from negatively charged cathode to positively charged anode as per their mass and size.
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<span>The Rock Cycle is the process in which rocks are
formed, changed, and broken down. An igneous rock can either change into a
sedimentary or into a metamorphic rock; just the same that a sedimentary rock
can change into an igneous rock or metamorphic rock. Factors like heat, water,
and air can break and
form new types of rocks in a continuous cycle. <span>
<span>The rock
cycle never stops; it is a continuous process that occurs through time. A
mountain that is composed of<span> metamorphic rocks can easily be
washed away by streams and new sedimentary rocks can be formed through this
process. </span></span></span></span>
Answer: Increase in species numbers and diversity
Explanation:
Upwelling is an oceanographic phenomena in which the water from the bottom layers of the ocean usually above the seafloor get displaced and reach upto the surface layers with the effect of wind currents. The water carries away along with it the nutrients and the organic matter to the surface layers which allows the efficient growth of plant and planktonic diversity which favors the growth of sea animals like fishes and others. Hence, by this way the species diversity and numbers increases by the process of upwelling.
It should be natural selection since there is no external influence implied. (like environment or genetic mutations.)
Answer:
D. respiration
Explanation:
It is basically a process that takes place in the cells of organisms. It converts chemical energy from oxygen molecules or even nutrients into ATP.
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