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Cells & Cells & ReproductionReproduction
Heredity Heredity DefinedDefined
Just GeneticsJust GeneticsCurious Curious CrossesCrosses
PredictablePredictable PunnettsPunnetts
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The organelle that controls all of the
cell’s activitiesWhat is the nucleus?
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The type of The type of reproduction that reproduction that requires 2 parentsrequires 2 parents
What is sexual reproduction?
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What is asexual reproduction?
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The type of reproduction The type of reproduction that creates very little that creates very little diversity (differences) diversity (differences)
in a species?in a species?
2 differences between 2 differences between plant and animal cellsplant and animal cells
What is plant cells have cell walls, a square shape, one large vacuole and
chloroplasts?
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(s)
The 3 major ideas of The 3 major ideas of Cell TheoryCell Theory
What are:
-all living things are made of cells
-all cells are produced from other cells
-cells are the basic unit of structure & function in living things?
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A section of DNA that A section of DNA that controls a certain traitcontrols a certain trait
What is a gene?
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The study of heredityThe study of heredity
What is Genetics?
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An inherited physical An inherited physical characteristiccharacteristic
What is a trait?
Different forms of a geneDifferent forms of a gene
What are alleles?
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Daily Double
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The passing of traits from The passing of traits from parents to offspringparents to offspring
What is heredity?
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He is credited as being the He is credited as being the first to explain the process first to explain the process
of heredityof heredity
Who is Gregor Mendel?
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He created a tool that He created a tool that scientists use to predict scientists use to predict the outcome of genetic the outcome of genetic
crossescrosses
Who is Reginald Punnett?
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This is used to show all This is used to show all possible combinations of possible combinations of
parents’ allelesparents’ alleles
What is a Punnett Square?
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Two ways environmental Two ways environmental factors can affect eyesightfactors can affect eyesight
What are:
Light exposure, overuse, injury etc.?
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What is “R”?
Right-handedness is Right-handedness is dominant to left-dominant to left-
handedness.handedness.
This represents the This represents the dominant allele.dominant allele.
The probability of a homozygous The probability of a homozygous right-handed person (RR) and a right-handed person (RR) and a left-handed person (rr) having a left-handed person (rr) having a
child that is left-handed.child that is left-handed.
What is 0%?
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Right-handedness is dominant Right-handedness is dominant to left-handedness.to left-handedness.
This is the genotype of a This is the genotype of a heterozygous personheterozygous person
What is Rr?
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Right-handedness is dominant Right-handedness is dominant to left-handedness.to left-handedness.
This is the phenotype of a This is the phenotype of a heterozygous personheterozygous person
What is right-handed?
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If you cross a white cow and a If you cross a white cow and a black cow, you get offspring that black cow, you get offspring that
are both black and white. are both black and white.
That means black and white coat That means black and white coat colors must be thiscolors must be this
Daily DoubleWhat is codominant?
The reason a colorblind The reason a colorblind person can never be hybridperson can never be hybrid
What is a hybrid would have Cc (normal vision)?
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Color-blindness is a recessive Color-blindness is a recessive trait.trait.
Brown eyes (B) are dominant to Brown eyes (B) are dominant to blue eyes (b).blue eyes (b).
The probability for the offspring The probability for the offspring in the Punnett Square below in the Punnett Square below
What is 75% chance of brown
eyes & 25% chance of blue
eyes?
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Right-handedness (R) is dominant Right-handedness (R) is dominant to left-handedness (r).to left-handedness (r).
The probability for the offspring The probability for the offspring of parents who are homozygous of parents who are homozygous left-handed and heterozygous left-handed and heterozygous
right-handedright-handed
What is 50% chance of right-handed and 50% chance of left-handed?
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In mice, black fur (B) is dominant In mice, black fur (B) is dominant to white fur (b).to white fur (b).
The genotypes that could result The genotypes that could result from a cross between 2 from a cross between 2
heterozygous miceheterozygous mice
What are BB, Bb, and bb?
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Brown eyes (B) are dominant to Brown eyes (B) are dominant to blue eyes (b).blue eyes (b).
The reason the offspring of a The reason the offspring of a purebred brown-eyed person must purebred brown-eyed person must
have brown eyeshave brown eyes
What is the offspring must get at least one “B”, which would give them
brown eyes?
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The reason you don’t need a The reason you don’t need a Punnett Square to determine the Punnett Square to determine the offspring of asexual reproductionoffspring of asexual reproduction
What is asexual reproduction produces offspring identical to the parent?
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