Answer:
B. A group that is treated the same as other groups except for the variable being tested.
Fredrick Griffith, He did an experiment with virulent and non-virulent strains of pneumonia. He heat killed the virulent strain, making it harmless and then mixed it with the non-virulent strain. When he inoculated mice with the mixture, the mice died, This meant that the non-virulent bacteria had picked up some genetic material from the killed bacteria - they had been transformed.
Answer:
Answer is E.
Explanation:
Chromosomal inversion is a situation involving the segment of a chromosome where it is turned upside down and reinserted back into the chromosome. This usually occurs because of a breakage and rearrangement occurring within a single chromosome.
It is of a two types, these are
* Paracentric chromosomal inversion - a type where a segment not including the centromere is snipped out, inverted, and inserted back to its location on chromosome.
* Pericentric chromosomal inversion - is a type where a segment including the centromere is snipped out, inverted, and inserted back to its original location on chromosome.
The answer should be both
Gene flow — also called migration — is any movement of individuals, and/or the genetic material they carry, from one population to another. Gene flow includes lots of different kinds of events, such as pollen being blown to a new destination or people moving to new cities or countries.
