Nondisjunction during meiosis results in an abnormal number of chromosomes in one or more gametes. in some cases of nondisjunction, a single chromosome fails to separate. in others, none of the chromosomes separate. suppose an egg is produced in which none of the chromosomes separate during meiosis ii. what is the chromosome number of the zygote that results if this egg is fertilized by a normal sperm?

20 point pls brianliest 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?