IB does this. The IB plans out a students high school courses over at least 2 years. Trust me, I'm in it! Hope that helps!
Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present. Never remove chemicals or other equipment from the laboratory. Chipped or cracked glassware is okay to use. Read all procedures thoroughly before entering the laboratory.
Is the answer
Answer:
Crossing over is a process in meiosis I where chromosomes randomly segregate which ensures both maternal and paternal chromosomes are passed on to each other.
Explanation: