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Unit 3 GENETICS; Part 1
Biology 3201
Mendelian & Modern Genetics
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Chapter 16
Suggested Time: 10 Hours of 44 hours for all of Unit 3
Genetics: Mendelian
1. Define the terms heredity and genetics.
2. Explain Mendel’s concept of unit characters and describe the unit theory of inheritance
3. explain the meaning of the following terms:
(i) trait
(viii) recessive
(ii) purebred
(ix) gene
(iii) P generation (parent
(x) allele
generation)
(xi) homozygous
(iv) F1 and F2 generation
(xii) heterozygous
(first and second filial
(xiii) product rule
generation)
(xiv) punnett square
(v) hybrid
(xv) genotype
(vi) monohybrid
(xvi) phenotype
(vii) dominant
4. Explain how Mendel’s experiments support:
a. principle of dominance
b. law of segregation
c. law of independent assortment
5. Predict the outcome of monohybrid and dihybrid crosses using Punnett Square or Product Rule
6. Predict the genotypic and phenotypic ratios in one factor (monohybrid) and two-factor (dihybrid) crosses
7. Explain the meaning of the following terms: (i) incomplete dominance (ii) co-dominance
(iii)
multiple alleles
8. Predict the outcome of monohybrid crosses for incomplete and codominance
9. Demonstrate the inheritance of traits governed by multiple alleles by predicting the genotypic and
phenotypic ratios in crosses involving human blood types (ABO groups)
10. Explain the significance of a test cross
11. Use a test cross to determine the unknown genotype of a dominant organism
Genetics: Modern Ideas
12. Explain how the work of Gregor Mendel and Walter Sutton led to the Chromosome Theory of Inheritance
13. State and explain the Chromosome Theory of Inheritance
14. Describe Morgan’s experiments with Drosophila and explain how his observations supported the
Chromosome Theory of Inheritance
15. Explain the concepts of gene linkage (linked genes) and crossing-over.
16. Explain how the discovery of gene linkage affected man’s understanding of Mendel’s Law of
Independent Assortment
17. State the Law of Independent Assortment in modern terms
18. Outline, in general terms, the Gene-chromosome Theory of Inheritance
19. Define sex-linkage (inheritance of certain characteristics (red-green colour blindness, hemophilia,
muscular dystrophy)
20. Explain why sex-linked effects are more common in males than females
21. distinguish between genotypes and phenotypes evident in autosomal and sex-linked inheritance
22. Explain the influence of polygenic traits on inheritance patterns.
23. Predict the outcome of monohybrid crosses for sexlinked traits
24. Analyze and interpret models of human karyotypes (Conduct Karyotyping Lab).
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Biology 3201
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Unit 3 GENETICS; Part 1 Mendelian & Modern Genetics