Answer:
b. The DNA fragments move towards cathode under electric field through the matrix.
Explanation:
Gel electrophoresis is a molecular biology technique used to separate DNA fragments based on size using electric current. The electric current passes through a GEL (agarose gel is commonly used) matrix. Due to the fact that DNA is negatively charged, they tend to move towards a positively charged electrode called ANODE.
However, the smaller the size of the DNA fragment, the faster and farther it moves along the matrix. Gel electrophoresis is indeed a technique used to check how progressive a restriction enzyme has been able to digest DNA molecule into fragments.
Earthquakes produce three types of seismic waves: primary waves, secondary waves, and surface waves. Each type moves through materials differently. In addition, the waves can reflect, or bounce, off boundaries between different layers.
Answer:
Plants are organisms that produce their own food through photosynthesis. Plants also absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient.
Explanation:
25
2000-150=1850 1850/72 = 25.69 and cant hold more than 25
Answer:
Evolution often happens over long periods of time. The fact that Earth can change over time inspired the idea that organisms can also change. Earth's great age makes it possible for significant changes to have occurred.
Explanation: