1. Vocabulary Review Chapter 14 & 15

2. Mendel’s true breeding generation P or parental generation

3. Alternative forms of a gene alleles

4. Genetic makeup of an organism genotype

5. Type of inheritance in which hybrids are a mixture of parental phenotypes Incomplete dominance

6. Type of inheritance where both alleles are expressed in distinguishable ways Codominance

7. Type of inheritance where three or more genes affect the phenotype polygenic

8. Genes that tend to be inherited together Linked

9. When members of homologous pairs of chromosomes fail to separate during meiosis Nondisjunction

10. Organisms that are normal but transmit recessive alleles to offspring Carrier

11. Pairs of alleles segregate independently during meiosis Law of Independent Assortment

12. Organism’s observable traits or their appearance Phenotype

13. Probability that an offspring will be heterozygous if parents are both heterozygous 50%

14. When both alleles are the same for a trait it is called this Homozygous

15. AABBCC X aabbcc Probability these parents would produce AaBbCc 1 or 100%

16. AABbCc x AaBbCc probability these parents would produce AAbbCC 1/32

17. If two alleles at a locus differ, the dominant allele will determine the organism’s phenotype Law of Dominant & Recessive Heredity

18. Cross determined by two traits Dihybrid Cross

19. Sutton, Boveri and others were responsible for this theory Chromosome Theory of Inheritance

20. A gene located on a sex chromosome Sex-linked gene

21. Inactivated X chromosome in a cell is called a Barr Body

22. When genes are exchanged during meiosis it is called this Crossing-over

23. Plants can have multiple sets of chromosomes; a state called this Polyploidy

24. When a gene is moved and joins a nonhomologous chromosome it is called this Translocation

25. An abnormal number of chromosomes is called this Aneuploidy

26. Aneuploidy where there is one extra chromosome in a karyotype Trisomy

27. Trisomy 21 Down Syndrome

28. What were caused in fruit flies in Thomas Hunt Morgan’s lab Mutations

29. Difference in phenotype based on whether the allele is inherited from the mother or father Genomic Imprinting

30. When a chromosomal fragment is lost it is called this Deletion

31. An aneuploid situation in which the organism has only one copy of a gene Monosomy

32. Probability that a heterozygous to heterozygous dihybrid cross will produce both dominant traits 9/16

33. Chart showing members of a family showing which members show a particular trait Pedigree

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