Download Genetics Review Questions March 2013

SBI 3U Genetics Review Questions March 2013
Mitosis and Meiosis
Cell cycle
0. What are the stages of the cell cycle. What happens in each stage of interphase?
1. Name the 4 stages of mitosis. Describe the position of the chromosomes in each stage that would help to
identify which stage of mitosis a cell is in.
2. What is interphase? What is happening to the cell during interphase?
3. Describe the differences between mitosis and meiosis, with respect to the types of cells involved, number of
divisions, number of cells resulting, chromosomes numbers in the parent, chromosome numbers in the
offspring.
4. Name the stages of meiosis. Describe the position of the chromosomes in each stage that would help to
identity which stage of meiosis a cell is in.
5. Recognize the different phases of both mitosis and meiosis.
6. What is the difference between haploid and diploid?
7. Why is meiosis necessary?
8. Other important terms: sister chromatids, centromere, gametes, synapsis and crossing over.
Sexual and Asexual Reproduction
9. Describe the difference between asexual and sexual reproduction. Give advantages and disadvantages of each.
10. Name and describe the 5 methods of asexual reproduction. Give advantages and disadvantages of each.
DNA
11. Identify the three components of a DNA molecule. Describe the types of bonds that hold these components
together.
12. Identify the structures of adenine, guanine, thymine, and cytosine. Which nucleotides pair-up?
13. What is the shape of a DNA molecule like? Describe it.
Mendel and Genetics
15. Who was the first to demonstrate the basis of heredity? What are his 2 laws? When is the 2nd law not true?
16. What is the difference between a genotype and a phenotype?
17. Define the following terms: viability, P generation, F generation, hybrid, gene, allele, genotype, phenotype,
homozygous, heterozygous, dihybrid.
18. Explain how different genotypes can give the same phenotype.
19. Know how to perform crosses using a Punnett Square, and read/construct/analyse a pedigree.
20. Describe the difference between incomplete dominance and codominance, sex linkage and multiple alleles.
Genetics and Technology
21. Describe (briefly) genetic screening, genetic counseling and genetic therapy.
22. Describe (briefly) the different prenatal screening procedures.
23. What was the purpose of the Human Genome Project? Dolly?
24. How are bacterial plasmids and restriction enzymes used in genetic technology?
24. What is a karytoype?
Review
* Notes from “PGD” article * The quizzes and homework.
* Practice for the test: do the review questions for each chapter and for the unit (New text: Biology Source 11)
Page 124-125, # 11, 12, 13, 15, 25, 27, 31, 36
Page 152-153, #8, 11, 19, 25, 28, 29, 33
Page 176-17 #3, 6, 7, 14, 16, 18, 20, 28
Unit Review page 179-183 # 15, 21, 40, 45, 52, 61, 66, 69