1. True or False Theoretically, any human body cell could be used to clone a human because all of the body cells (= somatic cells) in one individual human are genetically identical.
2. Name the stage of the cell cycle when new deoxyribonucleic acid is manufactured.
3. Name the stage of the cell cycle when a cell prepares to divide.
4. How will the process of mitosis affect the number of chromosomes in the newly formed nuclei?
5. Calculate the surface to volume ratio of a 3 inch cube.
6. Name the stage of meiosis when synapsis occurs.
7. Name the stage of meiosis when homologous chromosomes come together to form tetrads.
8. How many chromatids are present in a tetrad?
9. How many tetrads will be formed during meiosis of animal and plant cells?
10. How will the process of meiosis affect the number of chromosomes in the newly formed nuclei?
11. How many chromosomes are present in a human lung cell?
12. How many different kinds of chromosomes are present in a human lung cell?
13. How many chromosomes are present in a human sex cell?
14. How many different kinds of chromosomes are present in a human sex cell?
15. Name two kinds of gametes (= sex cells).
16. How many genes are present on a chromosome?
17. A gene carries information for the manufacture of:
18. Alleles are _?_ that influence the same characteristic.
19. What is the name of the longest chromosome present in a normal human cell?
20. How many alleles for blood type are present in the human population?
21. What is the phenotype of a person who has allele B and allele O for blood type?
22. What is the genotype of a person with Type O blood?
23. With respect to blood type alleles, how many different kinds of gametes can be formed by a person with Type O blood?
24. A female with Type AB blood and a male with Type O blood have several offspring. What percentage of these offspring will probably have Type A blood?
25. A female with Type B blood, and who is homozygous, and a male who has Type O blood have several offspring. Will any of their offspring probably have Type O blood?
26. Can a female with Type A blood and a male with Type B blood have any offspring with Type O blood?
27. Could a male with Type AB blood possibly be the father of a child who has type B blood and whose mother has Type A blood?
28. With reference to Question 27, can blood typing tell us, with 100% accuracy, who is the father of the child?
29. With respect to sex chromosomes, what is the genotype of a human male?
30. Hemophilia is a sex-linked trait. A female with hemophilia and a normal male have several offspring. What percentage of their male children will probably have hemophilia?
31. Name the stage of mitosis when double-stranded chromosomes are aligned on the equator of the spindle.
32. What is the name of each of the strands of a double-stranded chromosome?
33. What is the name of the location where the two strands of a double-stranded chromosome are attached?
34. Name the stage of meiosis when crossing-over is most likely to occur.
35. Name the stage of mitosis when chromosomes become shorter and thicker.
36. Name the stage of mitosis when chromosomes become longer and thinner.
37. Name the stage of meiosis when double-stranded chromosomes are moving away from each other.
38. Name the stage of meiosis when single-stranded chromosomes are moving away from each other.
39. How many functional human eggs are produced from one female germ cell?
40. How many functional human sperm are produced from one male germ cell?
41. Name the human body organ in which female germ cells are located.
42-45. Skin color in witches is due to incompleted dominance (= lack of dominance) of the alleles G for green and G' for yellow. The heterozygote is blue. 42. What is the genotype of a witch with blue skin? 43. What is the genotype of a witch with yellow skin? 44. With respect to alleles for skin color, list all of the types of gametes that could be produced by a witch with green skin. 45. Could a witch with green skin and a witch with yellow skin have any offspring with blue skin?
46. True or False Hemophilia, which is a sex-linked characteristic, is more likely to occur in females than in males.
47. Could a female with hemophilia and a male with hemophilia have any normal male offspring?
48. Could a female with hemophilia and a male with hemophilia have any normal female offspring?
49. Which parent donates the gamete that determines the sex of a child?
50. True or False Each human cell has numerous genes that can potentially influence the height of that individual.