Answer:
B) All DNA molecules will migrate up the gel toward the positive electrode.
Explanation:
Because the DNA has a negative charge - regardless the size-, all DNA molecules will migrate towards the positive electrode, at the top of the gel. This is due to the Coulomb's physic law "force of the interaction between the charges is attractive if the charges have opposite signs".
Instead of migrate down the gel , the DNA will do migrate up the gel (opposite direction).
Answer: A chromosomes
Explanation: A chromosomes has a large strand of dna and is made up of many genes.
Water logged? If the soil does not stick together the soil will seperate and water will have easier access to enter
Answer:
Computer automation is used mostly by industry in factories. However, it is also useful in science. Machines can be used to run automated tests and complete simple tasks. One example of a machine used in science is the robotic arm that is used to handle radioactive samples.
Explanation: