What is a mutation?
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D.N.AD.N.AObjective: SWBAT review for the Unit 4 Basic Unit of Life Quest Objective: SWBAT review for the Unit 4 Basic Unit of Life Quest
IOT obtain a mastery of 80% or above! IOT obtain a mastery of 80% or above!
What is a mutation?
All our cells contain a protein called P53 which controls cell division. When an individual has cancer, this protein stops working. Explain what occurs when an individual develops cancer.
A change in the DNA sequence (affects genetic code!)A change in the DNA sequence (affects genetic code!)
Cancer occurs when cells lose regulation of MITOSIS and cells begin to divide uncontrollably
Cancer occurs when cells lose regulation of MITOSIS and cells begin to divide uncontrollably
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ANNOUNCEMENTSANNOUNCEMENTS
Unit 4 Basic Unit of Life Quest 3 is on Friday!– DNA structure/function– Mitosis– Asexual Reproduction– Cancer
HW: Complete Review Packet
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D.N.AD.N.A
Take out your Unit 4 Review Packet
We will play jeopardy once the bell rings
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RULESRULES
2 TeamsMs. Nakamura will pick out a questionEach person will write their answer on their
white board (NO CHEATING)However many people in each team answer
answer the question correctly, will get a point!
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JeopardyJeopardyGenetic Genetic
Key Key TermsTerms
Punnett Punnett SquaresSquares
ProbabiliProbabilityty
Sex-Linked Sex-Linked TraitsTraits PedigreesPedigrees
$100 $100 $100 $100 $100
$200 $200 $200 $200 $200
$300 $300 $300 $300 $300
$400 $400 $400 $400 $400
$500 $500 $500 $500 $500
FINAL JEOPARDY
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Genetic Key Genetic Key TermsTerms
$500Answer
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Genetic Key Terms Genetic Key Terms for $500for $500
Question
Vocabulary term for genetic trait
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QuestionQuestion
Selections
What is genotype?
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Genetic Key Genetic Key TermsTerms
$400Answer
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Question
Genetic Key Terms for Genetic Key Terms for $400$400
Vocabulary term for physical trait?
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QuestionQuestion
What is phenotype?
Selections
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Genetic Key Genetic Key TermsTerms
$300Answer
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Question
DNA Structure for DNA Structure for $300$300
In order to exhibit the dominate trait, the genotype must be?
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QuestionQuestion
What is homozygous dominant /
heterozygous?
Selections
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Genetic Key Genetic Key TermsTerms
$200Answer
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In order for the recessive trait to be
displayed, what must the genotype be?
Question
Genetic Key Terms for for $200$200
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QuestionQuestion
What is homozygous recessive?
Selections
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Genetic Key Genetic Key TermsTerms
$100Answer
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The alternative forms of a gene are called?
Question
Genetic Key Terms for for $100$100
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QuestionQuestion
What are allelesSelections
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Punnett SquaresPunnett Squares
$500Answer
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Punnett Squaresfor Punnett Squaresfor $500$500
In fruit flies, R eyes (R), are dominant over white eyes (r). In a cross between two red-eyed fruit flies, approximately
25% of offspring had white eyes. These were the most likely genotypes of the
parents?
Question
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QuestionQuestionWhat are Rr and Rr?
Selections
RR Rr
Rr rr
R
R
r
r
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Punnett SquaresPunnett Squares
$400Answer
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In mice, the allele for Black eyes (B) is dominant; the allele for red eyes (b) is recessive. A scientist crossed a homozygous black-eyed mouse with a
red-eyed mouse. What would be the expected genotypes of this cross?
Question
DNA Replication for DNA Replication for $400$400
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Punnett SquaresPunnett SquaresWhat is Bb?
Selections
Bb Bb
Bb Bb
B B
b
b
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Punnett SquaresPunnett Squares
$300Answer
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In one plant, the allele for long stems (L) is dominant; the allele for short stems (l) is
recessive. A scientist crossed a heterozygous long-stemmed plant with a short-stemmed plant.
What would be the expected genotypes of the cross?
Question
Punnett Squares for for $300$300
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QuestionQuestionWhat is Ll and ll?
Stions
Ll ll
Ll ll
L
l
l
l
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Punnett SquaresPunnett Squares
$200Answer
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In horses, the allele for straight hair (H) is dominant to curly hair (h).
What are the genotypes of the parents that will produce offspring
with curly hair?
Question
Punnett Squares for for $200$200
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QuestionQuestionWhat is Hr and Hr
(both heterozygous)?
Selections
HH Hh
Hh hh
H
H
h
h
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Punnett SquaresPunnett Squares
$100Answer
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In this punnett square, which of the following is true about the offspring?
A.Half are short
B.All are short
C.Half are tall
D.All are tall
Question
DNA Replication for DNA Replication for $100$100
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QuestionQuestion
What is D) All are tall?
Selections
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ProbabilityProbability
$500Answer
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Probability for $500Probability for $500
Question
In humans the allele for dimples (D) is dominant. A woman (DD) and a man (Dd) have four children. What is the predicted ration of the children with dimples to the children without dimples?
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QuestionQuestion
Selections
What is 1:0?
DD DD
Dd Dd
D D
D
d
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$400Answer
ProbabilityProbability
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In humans, thick lips (L) are dominant to thin lips. If a
homozygous dominant male has a child with a heterozygous dominant female, what is the probability that their offspring will have thick lips?
Question
Probability for $400Probability for $400
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QuestionQuestion
What is 100%?
Selections
LL LL
Ll Ll
L L
L
l
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ProbabilityProbability
$300Answer
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Question
Probability for $300Probability for $300The allele for white fur is recessive (w) to the allele for brown fur (W). A rabbit with the genotype (Ww) is crossed with a rabbit with the phenotype (Ww). What is the probability their offspring will have white fur?
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QuestionQuestion
What is 25%?
Selections
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In humans the allele for long eyelashes is dominant (L). A female who is
heterozygous for long eyelashes and a male with short eyelashes have a child. What is
the probability that their offspring will have short eyelashes?
Question
Probability for $200Probability for $200
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QuestionQuestionWhat is 50%?
Selections
Ll ll
Ll ll
L l
l
l
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ProbabilityProbability
$100Answer
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Each box in a punnett square represents what
percentage?
Question
Probability for $100Probability for $100
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QuestionQuestion
What is 25%?
Selections
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Sex-linked TraitsSex-linked Traits
$500Answer
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Sex-linked Traits for Sex-linked Traits for $500$500
Colorblindness is a sex-linked traits. Why is color-blindness found more in males than in females?
Question
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QuestionQuestion
What is the trait is located on the X chromosomes, of which men only have one of?
Selections
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Sex-linked traitsSex-linked traits
$400Answer
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Question
Sex-linked Traits for Sex-linked Traits for $400$400
What percentages can be expected when a female carrier for color blindness crosses with a male with normal color vision?
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QuestionQuestionWhat is 25% normal males, 25% colorblind males, 25% normal females, 25% carrier
females?
Selections
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Sex-linked traitsSex-linked traits
$300Answer
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Question
Sex linked traits for $300Sex linked traits for $300
If a woman who is a carrier for hemophilia has children with a man who has the disease, what is the probability one of their children will NOT have the disease?
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QuestionQuestion
What is 50%
Selections
XXh XhXh
XY XhY
X Xh
Xh
Y
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Sex-linked traitsSex-linked traits
$200Answer
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Question
Sex-linked Traits for $200Sex-linked Traits for $200
If a woman is a carrier for hemophilia, what is her genotype?
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QuestionQuestion
What is XXh?
Selections
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Sex-linked TraitsSex-linked Traits
$100Answer
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What chromosomes are sex linked genes located
on?Question
Sex-linked Traits for $100Sex-linked Traits for $100
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QuestionQuestion
What are X and Y chromosomes?
Selections
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PedigreesPedigrees
$500Answer
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Pedigrees $500Pedigrees $500
Predict the genotype of individual 14, in the
pedigree above. Show your work!
Question
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QuestionQuestion
Selections
ff ff
ff ff
f f
f
f
What is ff?
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PedigreesPedigrees
$400Answer
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The pedigree below shows a trait of colorblindness. Write the genotype
next to the symbol for each person in the pedigree
Question
Pedigrees $400Pedigrees $400
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QuestionQuestionFilled in circle (mom): XcXc
Empty Square (dad): XY
Filled in square (son): XcY
EmptySelections
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PedigreesPedigrees
$300Answer
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Question
Pedigrees $300Pedigrees $300How many people in this family have a trait?
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QuestionQuestion
What is 4?
Selections
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PedigreesPedigrees
$200Answer
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Question
Pedigrees for $200Pedigrees for $200
What are the symbols that represent a male and a female?
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QuestionQuestion
What is a circle – female and a square – male?
Selections
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PedigreesPedigrees
$100Answer
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What is a pedigree?
Question
Pedigrees for $100Pedigrees for $100
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QuestionQuestion
A map of family’s genotype use to trace a
disease or trait
Selections
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FINAL JEOPARDY FINAL JEOPARDY QUESTIONSQUESTIONS
The allele for red eyes (R) is dominant to brown eyes (r). Students crossed male and female flies that had red eyes and recorded the eye color of their offspring.
What are the most likely genotypes of the parent flies?
Answer
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ANSWERANSWER The allele for red eyes (R) is dominant to brown eyes (r). Students crossed male and female flies that had red eyes and recorded the eye color of
their offspring.
What are the most likely genotypes of the parent flies?– A. RR and rr– B. Rr and Rr– C. Rr and rr– D. RR and Rr
RR Rr
Rr rr
R
R
r
r