1. Cell Division Genetics Punnett Squares 5 pt 5 pt 5 pt 5 pt 5 pt 10 pt
Eleanor M. Savko
Cell Division
Genetics
Punnett
Squares
9/19/2018
Reproduction
Esta categoría
es muy difícil.
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2. Eleanor M. Savko
9/19/2018
This process occurs when the cell’s nucleus divides into two new nuclei, each with an exact copy of DNA s

3. Mitosis

4. This substance in the nucleus is shaped like a spiral staircase
(or twisted ladder)

5. DNA

6. During DNA replication, these nitrogen bases always pair up

7. Adenine with Thymine
(A) (T)
Cytosine with Guanine
(C) (G)

8. DNA replication occurs during this stage of the cell cycle

9. Interphase

10. This is the name of each identical strand of a chromosome

11. Chromatid

12. These are the factors that
control traits

13. Genes

14. The different forms of a gene are called

15. Alleles

16. This is what scientists call an organism that has different alleles for a trait than its parents

17. Hybrid

18. With regard to the terms “dominant and recessive”, what does Tt mean to a geneticist?

19. One dominant allele
and
one recessive allele

20. This term refers to an occurrence when alleles are neither dominant nor recessive

21. codominance

22. This is the likelihood
that a particular
event will occur.

23. Probability

24. This chart shows all the possible outcomes of a genetic cross.

25. Punnett
Square

26. This term describes an organism’s genetic makeup.

27. genotype

28. An organism with
two different alleles
for a trait can be
described as

29. heterozygous

30. What is the outcome of a cross between a homozygous black guinea pig (BB) and a homozygous white guinea pig (bb)?

31. 100% chance of offspring having black fur (Bb)

32. This process occurs when chromosome pairs separate to form new sex cells.

33. Meiosis

34. This is the number of chromosomes each sex cell contributes when they combine to produce offspring.

35. HALF the normal number of chromosomes
(haploid)

36. This blood type results from a cross between homozygous Type A and homozygous Type B.

37. Type AB

38. Sex-linked traits are more common in males than in females because

39. A recessive allele on the X chromosome will always produce the trait in a male(XY)

40. 1 cell dividing into 2 cells is an example of what type of reproduction?

41. Asexual Reproduction

42. Genetic disorders are caused by…

43. mutations

44. Color blindness is an example of a characteristic that results totally from __________ and is not influenced by _________?

45. heredity; environment

46. The basic function of chromosomes is…

47. Storing your genetic info

48. What is the probability that the offspring will have white fur?BB Bb bb

49. 25%

50. What is the probability of getting a hamster purebred for black fur from this cross?BB Bb bb

51. 75%

52. Why is meiosis important?
Final Jeopardy
Why is meiosis important?

53. Meiosis creates 4 haploid sex cells that combine to create a genetically diverse diploid cell.