Download Mendelian Genetics

Review of Mitosis and Meiosis
1. Crossing over/Genetic Recombination occurs in:
A. mitosis
B. meiosis
C. Both
D. Neither
2. When does synapsis and crossing over occur?
A. Prophase I
B. Prophase II
C. Metaphase I
D. Metaphase II
3. Independent assortment occurs in:
A. mitosis
B. meiosis
C. Both
D. Neither
4. How is ploidy reduced in meiosis?
Mendelian Genetics
1. Which heredity hypothesis predicts that discrete characters will be observed?
What does this mean?
2. Define:
Character:
Trait:
Homozygous:
Heterozygous:
Discrete:
Indescrete:
True-Breeding:
P Generation:
F1 Generation:
F2 Generation:
3. How are each of the generations created?
P generation:
F1 Genteration:
F2 Generation:
4. Define:
Test Cross:
5. What is the best known genotype to use in a test cross?
6. Define:
Genes:
Allele:
Locus (pl. Loci):
Dominant trait:
Recessive trait:
Phenotype:
Genotype:
7. What is Mendel’s Law of Segregation (Mendel’s First Law)?
8. What phenotypic and genotypic ratios can be expected in the F1 and F2
generations from a monohybrid cross between homozygous dominant and
homozygous recessive individuals in the P generation? (WW x ww) Show the ratios
by using a Punnett Square.
9. What phenotypic and genotypic ratios can be expected in the F1 and F2
generations from a dihybrid cross between homozygous dominant and homozygous
recessive individuals in the P generation (for both traits)? (WWRR x wwrr) Show
the ratios by using a Punnett Square.
10. What is Mendel’s Law of Independent Assortment (Mendel’s Second Law)?
11. Define:
Complete Dominance:
Incomplete Dominance:
Multiple alleles:
12. How does the ABO blood type system show that multiple alleles are used for
blood?
13. Define:
Polygenic Inheritance:
Pleiotropy:
14. How can sickle-cell disease be both beneficial and detrimental to a person’s
health? Relate it to region and genotype.
15. What are the four points which explain Mendel’s observed data?
1.
2.
3.
4.