Genetics Exam Review

(**To get the curve on the test you MUST complete this entire review

and turn it in on Friday, March13th, 2015**)

Specific Assignments to Study:

  • Blood Typing Lab (pg 145-147 new book)
  • Punnett Squares Practice
  • Dihybrid Cross Practice – Mendel’s Pea Plants and Guinea Pig Practice
  • Genetics Problems
  • Pedigree Worksheets
  • Hemophilia in the Royal Family Lab
  • Harry Potter Pedigree
  • Karyotype Activity (List of 7 non-disjunction disorders)
  • Cracking the Code Video Day Starters
  • Any additional day starter questions
  • Protein Synthesis Worksheet
  • Protein Synthesis Mini- Lab (Bobulus Creatures)

Notes to Study:

  • All PowerPoint notes can be found on the Website.
  • Meiosis (6.1)
  • Genetic Terms (all vocab found in each unit section assignments)
  • DNA and Protein Synthesis (7.1)
  • Mendelian Genetics (7.2)
  • Non-Mendelian Genetics (7.3)
  • Karyotypes and genetic conditions (7.4)

Specific Questions (these should be answered on a separate sheet of paper)

Listed below are simply practice questions, the test will not include all topics and will include topics that aren’t listed in the sample questions. The test will cover all material from unit 7 and meiosis (6.1). Please review all notes and materials.

1. List 3 specific inherited traits (any 3).

  1. Tallness is dominant in tulip plants. Cross a heterozygous tall tulip plant with a short plant. What would be the potential offspring?
  1. Define homozygous, heterozygous, dominant, and recessive.
  1. What is the difference between a genotype and a phenotype?
  1. What is the probability that you will have a child that is a boy? Prove with a Punnett Square.
  1. What is the difference between codominance and incomplete dominance? Give an example of each.
  1. How many traits are needed to create a dihybrid cross?
  1. What are the 4 blood groups?
  1. What is Rh factor?
  1. What 2 things that determine blood type?
  1. Who is the universal blood receiver? Who is the universal blood donor?
  1. What are the 2 possible genotypes for “A” blood?
  1. How many pairs of chromosomes do humans have?
  1. Which chromosomes are autosomal? Which ones are sex chromosomes?
  1. What is a karyotype? How do we organize chromosomes?
  1. Write the notation for a female who has Downs Syndrome.
  1. What is a nondisjunctional disorder? Name 3 and give their karyotype notations.
  1. List 3 specific genetic disorders that are NOT chromosomal disorders and briefly explain each.
  2. On a pedigree, what does a square represent? A circle? An “X” crossed through a symbol? A horizontal line? A vertical line?
  1. What is DNA fingerprinting used for?
  1. Name and describe the three main step of protein synthesis:
  1. What is a polygenic trait?
  1. What is a linked gene?
  1. The phenotype variety for what type of trait is represented by a bell curve?
  1. Sponge bob and his pal Patrick love to go jellyfishing at Jellyfish Fields. The fields are home to a special type of green jellyfish known as goobers, and only really great jellyfishermen are lucky enough to catch some. Many of the jellyfish are Yellow (YY) or blue (yy) but some end up green as a result of incomplete dominance. What would happen if Spongebob and Patrick crossed two green jellyfish (aka goobers)?
  2. Give all the possible genotypes and phenotypes for the offspring
  3. What percentage would be yellow?
  4. What percentage would be blue?
  5. What percentage would be green?
  6. What would happen if they crossed a yellow jellyfish with a goober? Complete the Punnett Square to help you determine the probability for each color of jellyfish.
  7. Give all the possible genotypes and phenotypes for the offspring
  8. What percentage would be yellow?
  9. What percentage would be blue?
  10. What percentage would be green?
  11. In shorthorn cattle, the gene for coat color is an x-linked trait. Red coat (RR) color is co-dominant with white coat (rr) color. The heterozygous combination produces an animal with red and white spots. Draw a Punnett Square to show the possible genotypes and phenotypes of the following cross: a male with red coat color and a female with red and white spots.
  12. Explain why you will never see a male cow with red and white spots using the above information.
  13. Write all of the genotypes for blood types: