During gel electrophoresis, restriction enzymes are used to cut dna into fragments. those fragments are then added into a well cut from a slab of gel. an electric field is passed through the gel, causing the fragments to migrate to the positively-charged terminal at the other end of the gel.the dna fragments separate into bands on the gel because
The dna fragments separate into bands on the gel because it changes the rate of which they move. The shorter the dna fragment the faster it moves. The negatively-charged fragments and the positively-charged fragments will react differently to the electric charge. These changes cause the dna fragments to split off. Like if you are holding hands with some one, but then you start walking at a much faster pace then the person you are holding hands with. Eventually you would not be able to hold each others hand and would break off from one another.
The dna fragments separate into bands on the gel because it changes the rate of which they move. The shorter the dna fragment the faster it moves. The negatively-charged fragments and the positively-charged fragments will react differently to the electric charge. These changes cause the dna fragments to split off. Like if you are holding hands with some one, but then you start walking at a much faster pace then the person you are holding hands with. Eventually you would not be able to hold each others hand and would break off from one another.
for six years an artificial fertilizer is used on a apple orchard the orchard is next to a stream which empties in to a slat water bay during the last 5 years researchers have observed an increase in algae in the bay they have also sampled fish populations in the bay each year apex...
Explanation: with a great tolerance to a wide range of conditions the species would adapt and thrive which would allow it to reproduce and have all it needs to survive, grow, and take over.
A spring is a natural discharge point of subterranean water at the surface of the ground or directly into the bed of a stream, lake, or sea. Water that emerges at the surface without a perceptible current is called a seep. Wells are holes excavated to bring water and other underground fluids to the surface.
The seed consists of three components: embryo, endosperm (sometimes perisperm), and seed-coat. Both endosperm and embryo are the products of double fertilization, whereas the seed-coat develops from the maternal, ovular tissues. The seed habit is a significant advancement in the evolution of higher plants.
Anatomy of seed :-
Seed storage proteins provide a source of amino acids and reduced N necessary for germination and early growth of the seedling.
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