Jeopardy

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This
IS
Jeopardy
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(No Transcript)
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Punnett Squares
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Vocab. Review
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Fill-In
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Genotypes
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Punnett Squares 2
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Mixed
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Punnett Spuares
Vocab. Review
Fill-In
Genotypes
Punnett Squares 2
Mixed
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What will the ratio of brown-eyed children to
blue-eyed children from two heterozygous
brown-eyed parents be? Make your own Punnett
Square below.
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31 ratio brown to blue or 75 brown 25 blue
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In humans, curly hair is dominant over straight
hair. A woman homozygous for hair curl marries a
man with straight hair. What are the chances of
a child with curly hair?

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100 curly
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What percentage of offspring would be expected
to have short whiskers from the cross of a
long-whiskered seal, that is heterozygous with a
short whiskered seal.
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50 Long 50 Short
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In purple people eaters, one-horn is dominant and
no horns is recessive. Draw a Punnett Square
showing the cross of a purple people eater that
is hybrid for horns with a purple people eater
that does not have horns. What is the percentage
of offspring with horns and without horns?
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50 with horns 50 without
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A. BB- blue, Bb- blue, bb- green B. 75 C. 25
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To diagram the history of a trait from one
generation to the next, you could make a
______________.
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pedigree
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To diagram the possible combinations of gene
pairs you could use a _______________.
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Punnett Square
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Specific characteristics and features are called
___________.
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traits
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A trait that covers up another is called?
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dominant
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A method of reproduction that requires only 1
parent.
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Asexual Reproduction
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An organism with one dominant gene and one
recessive gene for a trait is known to be?
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heterozygous
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An organism with two dominant genes for a trait
is known to be?
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Homozygous or pure breed
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A method of reproduction that requires 2 parents.
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Sexual Reproduction
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In a pedigree a shaded square or circle means
________.
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That the trait is present.
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Genetic variability is an advantage of __________
reproduction.
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Sexual
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Heterozygous or Homozygous
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Ho He
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Heterozygous or Homozygous
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He Ho
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Heterozygous or Homozygous
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Ho He
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Heterozygous or Homozygous
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He Ho
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Heterozygous or Homozygous
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Ho Ho Ho Ho
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Rr-round rr-oval 50, 50
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You are starting a dairy and you are trying to
breed cows in order to increase your population
of red and white Holsteins. You know that the
red and white coat color is from a recessive gene
(bb). The black and white coat color is dominant
(BB or Bb). If the bull is homozygous black and
white and the cow is heterozygous black and
white, what will the phenotypes of the offspring
be? Will you get any red and white offspring?
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Black No
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You own a 10,000 head Blank Angus ranch that is
used for breeding purposes. The black coat color
is dominant (BB or Bb) and the red coat color is
recessive (bb). It is important that your
cattle maintain their black coat color in order
for you to sell your breeding animals to other
Black Angus ranchers. A black cow is mated to a
black bull. A heifer with a red coat color is
delivered. What did the cow and bull genotypes
have to have been in order for a red offspring to
be produced?
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Cow- Bb Bull- Bb (Would result in a 25 chance of
having a red calf)
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In a certain species of mouse pointed ears are
dominant over round ears. Cross two
Heterozygous mice and predict the of
offspring that would be round?
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25
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Daily Double!!
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1. Ram- ww 2. Ewe- Ww 4. Ww- white ww- black
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Yellow, yellow, blue
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B. Sexual reproduction produces more diversity.
Asexual reproduction only produces clones.
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• Which of these is due entirely to inheritance in
  humans?
• eye color b. endurance
• c. reading skill d. broken bones

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Eye color
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Luke is interested in his familys history, so he
drew his family tree. Luke knows that a persons
physical characteristics are carried in their
genes. Approximately what percentage of genes did
Luke get from his Grandma Mary? What
percentage of genes did Luke get from his mother
Betty?
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25 from Grandma Mary 50 from Mother Betty
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• Paramecia usually reproduce asexually. Fish
• Usually reproduce sexually. Suppose the
• Environmental conditions in the lagoon change.
• What advantage will the fish population have
• Over the paramecium population?
• Sexual reproduction produces offspring that
• are identical to the parents.
• B. Sexual reproduction decreases the genetic
• variability in the fish populations.
• C. Sexual reproduction limits the spread of
• harmful characteristics in fish populations.
• D. Sexual reproduction allows populations to
• Adapt to new conditions over fewer generations.

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D. Sexual reproduction allows populations to
Adapt to new conditions over fewer generations
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Final Jeopardy
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