Genetics Test Prep Quiz

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Genetics Test Prep Quiz
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Rules

• Each student starts with 100 points.
• You can bet as much as little as possible on each
  question based on what you think you may know
  about the subject.
• The person next to you will keep your score.
• Get several pieces of extra credit paper in which
  to write your answers.
• You can use the same piece of scratch paper
  multiple times.
• No sharing answers.
• If you are caught cheating, you will receive a
  zero on this quiz!

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Rules

• Scoring
• Simply add or subtract each players wager from
  total.
• Keep a running total.
• Players must wager at least 10 points per
  question (but can wager more).
• Over 200 points A
• 150-199 points B
• 100-149 points C
• 50-99 points D
• Under 50 points F
• If you run out of point to bet with, you are
  done!

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Example Question

• Category Genetic Terms
• Question What to we call alternative forms of
  the same gene?
• Answer Alleles

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Question 1

• Category Gregor Mendel
• Question How many traits (total) did Mendel
  observe in his study of pea plants
• Answer 7

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Question 2

• Category Mendelian Terms
• Question The hybrid offspring of the P
  generation are called the __________.
• Answer F1 Generation

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Question 3

• Category Mendelian Genetics
• Question If you cross a true breeding purple
  flowered pea plant with a true breeding white
  flowered plant to produce an F1 generation. You
  then allow the F1 to self-pollinate. Assuming the
  inheritance pattern is simple dominant/recessive,
  what will be the phenotypic ratio of the F2?
• Answer 3 purple 1 white

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Question 4

• Category Genetics Terms
• Question The specific location of a gene on a
  chromosome is called a ________.
• Answer Locus

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Question 5

• Category Genetics Terms
• Question If an organism has a genotype (Aa) for
  a specific trait, it is said to be ___________
  for that trait.
• Answer Heterozygous

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Question 6

• Category Mendels experiments
• Question Mendel knew that by looking at a
  dominant phenotype, you could not tell what the
  genotype was of that organism by looking at the
  dominant phenotype (TT or Tt). He came up with
  the Test Cross to determine the genotype of his
  pea plants with dominant characteristics. He
  crossed pea plants with dominant phenotypes with
  peas plants with this genotype to determine the
  genotype of the dominant plants?
• Answer Homozygous recessive (tt)

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Question 7

• Category Dihybrid Crosses
• Question If you perform a dihybrid cross and get
  a 9331 phenotypic ratio in the next
  generation, what is the genotype of each parent?
• Answer Heterozygous for both traits

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Question 8

• Category Probability
• Question The _________ rule states that the
  probability that two or more independent events
  will occur together is the product of their
  individual probabilities (the rule of and)
• Answer Multiplication

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Question 9

• Category Probability
• Question If you cross two individuals that are
  heterozygous for one trait. What is the
  probability that there offspring will be
  heterozygous for that trait as well?
• Answer ½ or 50

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Question 10

• Category Inheritance Patterns
• Question If you cross a true breeding red
  flowered plant with a true breeding white
  flowered plant and all of the F1 comes out pink.
  You then allow all of the F1 to self-pollinate
  and you get a phenotypic ratio in the F2 of (1
  Red 2 Pink 1 White). What is the inheritance
  pattern?
• Answer Incomplete dominance

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Question 11

• Category ABO Blood typing
• Question In humans, type A blood is ________ to
  type B blood, creating the AB blood type.
• Answer Co-dominant

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Question 12

• Category ABO Blood Typing
• Question If a women with type A blood has a
  child with type B blood. What his her genotype
  and what are the possibilities of the fathers
  genotype?
• Answer Mother IAi
• Father IBIB or IBi or IAIB

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Question 13

• Category Genetic Terms
• Question In________, a gene at one locus alters
  the phenotypic expression of a gene at a second
  locus. This occurs in coat colors in mammals.
• Answer Epistasis

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Question 14

• Category Genetics Terms
• Question Quantitative variation usually
  indicates _______________, an additive effect of
  two or more genes on a single phenotype. An
  example is human skin coloring.
• Answer Polygenic Inheritance

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Question 15

• Category Genetics Terms
• Question A ________ is a family tree that
  describes the interrelationships of parents and
  children across generations
• Answer Pedigree

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Question 16

• Category Genetics Terms
• Question __________are heterozygous individuals
  who carry the recessive allele but are
  phenotypically normal (i.e., pigmented)
• Answer Carriers

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Question 17

• Category Genetics Testing
• Question In ________, the liquid that bathes the
  fetus is removed and tested for genetic
  disorders.
• Answer Amniocentesis

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Adding it up

• Add up your partners final total on a clean piece
  of extra credit paper and turn it in to me with
  their name on it.
• Make sure you show them the score.
• Grading (Again)
• Over 200 points A
• 150-199 points B
• 100-149 points C
• 50-99 points D
• Under 50 points F