Genetic variation among the gametes of one individual is most likely to increase if crossing over: (a)involves different species.
(b)happens after meiosis ll.
(c)involves sister chromatids.
(d)happens during meiosis l.

Connection compare and contrast genetic engineering to the process of natural selection. select all statements that are true.

Me brainliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula.5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects.8. describe the planets’ orbits around the sun.9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets.13. what causes the seasons?

Development has provided electrically for less money but what may be considered a cause of nuclear power