genetics review
DESCRIPTION
GENETICS REVIEW. ROUND 1 – 5 POINTS EACH ROUND 2 – 10 POINTS EACH ROUND 3 - 15 POINTS EACH. 1. Below is a picture of what type of mutation?. Normal. Mutated. 1. Below is a picture of what type of mutation?. Point Mutation. You will need to know: - PowerPoint PPT PresentationTRANSCRIPT
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GENETICS REVIEW
ROUND 1 – 5 POINTS EACH
ROUND 2 – 10 POINTS EACH
ROUND 3 - 15 POINTS EACH
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1. Below is a picture of what type of mutation?
Normal Mutated
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1. Below is a picture of what type of mutation?
Point Mutation
You will need to know:
How to read codons and translate them into amino acids
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2. Phenotypic Ratio:__________________
Genotypic Ratio: __________________
T
t
T t
T T
T t
T t
t t
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T
t
T t
T T
T t
T t
t t
You will need to know:
The difference between genotypes and phenotypes
How to find ratios vs. percentages
2. Phenotypic Ratio:__________________
Genotypic Ratio: __________________
3 : 1
1: 2 : 1
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3. Create a punnett square for an X-linked recessive trait. The mother is a carrier and the father has the recessive trait. Complete the Punnett.
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XB XbXB
Xb
Xb Y
You will need to know:
How to read and create punnett squares AND how sex-linked traits are inherited.
XB Y
Xb Xb Xb Y
3. Create a punnett square for an X-linked recessive trait. The mother is a carrier and the father has the recessive trait. Complete the Punnett.
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4. What is the genotype of the circled offspring?
TG Tg tG tg
TG
Tg
tG
tg
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4. What is the genotype of the circled offspring?
ttGG
You will need to know:
How to read a dihybrid cross
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5. What are the possible genotypes for someone with “B” blood?
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5. What are the possible genotypes for someone with “B” blood?
You will need to know:
The genotypes for the different blood types
lB lB or lBi
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6. What keeps siblings (that are not identical twins) genetically different from one another?
A. Mitosis
B. Mutations
C. Crossing Over
D. Blood Types
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6. What keeps siblings (that are not identical twins) genetically different from one another?
A. Mitosis
B. Mutations
C. Crossing Over
D. Blood Types
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ROUND 2
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1. When there are two alleles that are expressed equally it is called?
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1. When there are two alleles that are expressed equally it is called?
Co-dominance
You will need to know:
The definition of co-dominance AND an example
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2. All organisms have ATCG in their DNA. How are we all different then?
A. The sequences of the ATCG’s are different for each individual organism.
B. Because sometimes there is “U”
C. The ATCG stand for different things in different species.
D. The codons in other organisms code for different amino acids.
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2. All organisms have ATCG in their DNA. How are we all different then?
A. The sequences of the ATCG’s are different for each individual organism.
B. Because sometimes there is “U”
C. The ATCG stand for different things in different species.
D. The codons in other organisms code for different amino acids.
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3. When a dark blue flower is mixed with a no-pigment flower and it produces light blue
flowers, this is called _____________ dominance.
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3. When a red flower is mixed with a no-pigment flower and it produces pink flowers,
this is called _____________ dominance.
Incomplete
You will need to know:
The definition of Incomplete dominance AND an example
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_________________ cells are cells with half the number of chromosomes.
An example of these type of cells are:_____________________________
_________________ cells are cells with two of each type of chromosome. An example of these types of cells are:____________________________
4.
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_________________ cells are cells with half the number of chromosomes.
An example of these type of cells are:_____________________________
_________________ cells are cells with two of each type of chromosome. An example of these types of cells are:____________________________
4. HAPLOID
SEX CELLS
DIPLOID
BODY CELLS
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5. The end result of Meiosis is…….
A. 4 Diploid cells containing 23 Chromosomes
B. 4 Identical Haploid cells
C. 2 Identical Diploid cells
D. 4 Haploid cells that are not identical
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5. The end result of Meiosis is…….
A. 4 Diploid cells containing 23 Chromosomes
B. 4 Identical Haploid cells
C. 2 Identical Diploid cells
D. 4 Haploid cells that are not identical
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6. Height and skin color are examples of?
A. Incomplete Dominance
B. Co-dominance
C. Polygenic Inheritance
D. Simple Dominance
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6. Height and skin color are examples of?
A. Incomplete Dominance
B. Co-dominance
C. Polygenic Inheritance
D. Simple Dominance
You will need to know:
The definition of polygenic inheritance and examples
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A family has had six female offspring.
What are the odds (percentage wise) that their next child will be a girl?
WORTH 20 POINTS
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A family has had six female offspring.
What are the odds (percentage wise) that their next child will be a girl?
WORTH 20 POINTS
50%
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ROUND 3
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1. All the children in a family have AB blood.
Which of the following genotype combinations could the parents possess?
A. Both parents are AB
B. One parent is heterozygous A and the other is heterozygous B
C. One parent is homozygous A and the other is homozygous B
D. All of the above
E. None of the above
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1. All the children in a family have AB blood.
Which of the following genotype combinations could the parents possess?
A. Both parents are AB
B. One parent is heterozygous A and the other is heterozygous B
C. One parent is homozygous A and the other is homozygous B
D. All of the above
E. None of the above
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2. How is it possible to have two parents that do not have a genetic disorder give birth to a child
that does have it.
Show evidence that this can happen.
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2. How is it possible to have two parents that do not have a genetic disorder give birth to a child
that does have it.
Show evidence that this can happen.
If Both parents are carriers, then they can pass it to their child.
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3. What are the allele combinations that can be found in a person’s sex cells if their genotype is
AaBb?
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3. What are the allele combinations that can be found in a person’s sex cells if their genotype is
AaBb?
AB , Ab , aB , ab
You will need to know:
How to figure out allele combinations for gametes when creating a dihybrid cross
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S – sphereical
s – wrinkled
Y – yellow
y - green
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4. Name two things a doctor can discover by looking at a karyotype.
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4. Name two things a doctor can discover by looking at a karyotype.
Gender, and chromosomal abnormalities (like # or shape)
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5. What is the phenotype of the circled offspring?
P – purple
p - yellow
S - Speckled
s - striped
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5. What is the phenotype of the circled offspring?
P – purple
p - yellow
S - Speckled
s - striped
Purple and striped
You will need to know:
How to fill in a dihybrid cross
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6. Below is a ________________ of what you would find in a ____________ cell.
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6. Below is a ________________ of what you would find in a ____________ cell.
Karyotype
Haploid