STUDY GUIDE
DNA, RNA, MITOSIS, AND MEIOSIS
1. A cell makes a copy of its DNA during the stage of the cell cycle called mitosis is called
_______.
2. In a DNA molecule, what base pairs always bond?
3. In a RNA molecule, what base pairs always bond?
4. You can’t see the cells in your body because most of them are very______.
5. The sex cells produced by meiosis have ________ the number of chromosomes as the
parent cells.
6. Chromosomes carry ____ from parents to offspring.
7. _____RNA carries coded messages from the nucleus to the cytoplasm.
8. Mitosis is the stage of the cell cycle during which the cells nucleus ______.
9. What happens during cytokinesis in animal cells?
10. A DNA molecule is shaped like a ______.
11. Each rung of the DNA ladder is made of______.
12. During what stage of the cell cycle does replication occur?
13. What is copied during replication?
14. What are chromatids?
15. What forms around the chromatids during mitosis?
16. The stage of the cell cycle that follows mitosis is called____.
17. The regular cycle of growth and division that cells undergo is called ____.
18. All organic compounds contain the element _______.
19. Enzymes are important because they ______.
20. A substance that cannot be broken down into simpler elements in a(n) ____.
21. When two or more elements combine chemically, they form a(n) ______.
22. Walter Suttton discovered that the sex cells of grasshoppers have ______ the number of
chromosomes found in the body cell.
23. What happens to chromosome pairs during meiosis?
24. When sex cells combine to produce offspring, each sex cell will contribute_____.
25. What does messenger RNA do during protein synthesis?
26. What do transfer RNA molecules do during protein synthesis?
27. Where does protein synthesis take place?
28. Which nitrogen base in RNA is NOT part of DNA?
29. Identify the stages of the cell cycle represented by drawings 1-5.
30. Which drawings represent parts of mitosis?
31. List drawings 1-5 in their correct order, beginning with the drawing that represents
interphase.
32. Identify structure A and state what it is made of.
33. Identify structures B and C.
34. Identify Structure D and state where it is made.
35. Identify structure E and describe its function.
36. A cell’s nucleus divides to form two identical nuclei during the stage of the cell cycle
know as _________.
37. The final stage of the cell cycle, during which the cytoplasm divides, is called ____.
38. During cytokinesis in plant cells, a(n) -_____ forms across the middle of the cell.
39. ____ is the process by which a cell makes an exact copy of its DNA.
40. Cells are the basic units of structure and _____ in living things.
41. The nucleus of a cell has thin strands of _______ that contain genetic material.
42. Unlike in an animal cell, the genetic material in a bacterial cell is not found in a______.
43. DNA and RNA belong to the group of organic compounds known as _____.
44. Small molecules called _______ make up proteins.
45. When two or more elements combine chemically, they form a _____.
46. The process in which a parent cell divides twice to produce sex cells is called____.
47. ______ RNA adds amino acids to a growing protein.