20. Which of the following statements about binary fission is false? a. In both prokaryotic and eukaryotic cells, the outcome of cell reproduction is a pair of daughter
cells, which are genetically identical to the parent cell.
b. Karyokinesis is unnecessary in prokaryotes because there is no nucleus.
c. Replication of the prokaryotic chromosome begins at the origin of replication and continues in
both directions at once.
d. The mitotic spindle draws the duplicated chromosomes to the opposite ends of the cell followed
by formation of a septum and two daughter cells.

Give two examples of what would occur if one of the pairs did not match or had an extra chromosomes. explain how this might occur, and if it would be dangerous to the individual. fast.

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?

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.