1. Unit 6 “Complex Inheritance”
10 Words

2. X or Y Chromosome; paired sex chromosomes determine an individual’s gender
XX = Girl
XY = Boy

3. Sex Chromosome
X or Y Chromosome; paired sex chromosomes determine an individual’s gender
XX = Girl
XY = Boy

4. Having 3 chromosomes in a slot when there should be only 2
*Trisomy 21 = Down Syndrome*

5. Having 3 chromosomes in a slot when there should be only 2
Trisomy
Having 3 chromosomes in a slot when there should be only 2
*Trisomy 21 = Down Syndrome*

6. homozygous parent organisms.
Complex inheritance pattern in which the heterozygous phenotype is intermediate between
those of the two
homozygous parent organisms.
*Red Flower + White Flower = pink*

7. homozygous parent organisms.
Incomplete Dominance
Complex inheritance pattern in which the heterozygous phenotype is intermediate between
those of the two
homozygous parent organisms.
*Red Flower + White Flower = pink*

8. Chromosome that is NOT a sex chromosome

9. Chromosome that is NOT a sex chromosome
Autosome
Chromosome that is NOT a sex chromosome

10. Individual heterozygous for a recessive disorder such as cystic fibrosis or Tay-Sachs Disease

11. Carrier
Individual heterozygous for a recessive disorder such as cystic fibrosis or Tay-Sachs Disease

12. Characteristic, such as red-green color blindness, controlled by genes on the X Chromosome

13. Sex Linked
Characteristic, such as red-green color blindness, controlled by genes on the X Chromosome

14. Complex inheritance pattern that occurs when neither allele is dominant and both alleles are expressed.
* Roan Cows *

15. Codominance
Complex inheritance pattern that occurs when neither allele is dominant and both alleles are expressed.
* Roan Cows *

16. Cell division in which the sister chromatids do NOT separate correctly, resulting in gametes with an abnormal number of chromosomes

17. Nondisjunction
Cell division in which the sister chromatids do NOT separate correctly, resulting in gametes with an abnormal number of chromosomes

18. Micrograph in which the pairs of homologous chromosomes are arranged in decreasing size

19. Karyotype
Micrograph in which the pairs of homologous chromosomes are arranged in decreasing size

20. Diagrammed family history that is used to study inheritance patterns of a trait through several generations and that can be used to predict disorders in future offspring

21. Pedigree
Diagrammed family history that is used to study inheritance patterns of a trait through several generations and that can be used to predict disorders in future offspring

22. The End