Download Guided Practice Station Materials

STATION 1: Complete Dominance
1. What does Genotype mean? Provide an example.
2. What does Phenotype mean? Provide an example.
3. What is COMPLETE Dominance?
4. What genotypes do you use for complete dominance?
5. How many phenotypes does complete dominance
have?
6. In a genetics laboratory, two heterozygous green plants
are crossed. If green is dominant over yellow, what are
the expected phenotypic results? SHOW YOUR WORK!!!
A. 100% green
B. 75% green, 25% yellow
C. 50% green, 50% yellow
D. 25% green, 75% yellow
Phenotypes
Key (1 pt)
Genotypes
Parents (1 pt)
Punnett Square (1 pt)
Ratios (1 pt)
Genotype:
______________ = ______________
__________ x ___________
______________ = ______________
______________ = ______________
Phenotype:
STATION 2: Incomplete Dominance
1. What does homozygous mean? Provide an example
genotype. Provide at least 2!
2. What are other vocabulary words used to describe
“homozygous”?
3. What does Heterozygous mean? Provide an example
genotype. Provide at least 2!
4. What are other vocabulary words used to describe
“heterozygous”? Provide at least 2!
5. What is INCOMPLETE dominance?
6. What genotypes do you use for incomplete dominance?
7. How many phenotypes does incomplete dominance
have?
8. What does the heterozygous phenotype look like?
9. Some flowers show incomplete dominance. If RR = red
and R’R’ = white, which phenotypic ratio would be
expected in the offspring of two pink flowers?
a. 1 red : 2 pink : 1 white
b. 0 red : 4 pink : 0 white
c. 3 red : 0 pink : 1 white
d. 4 red : 0 pink : 0 white
Phenotypes
Key (1 pt)
Genotypes
Parents (1 pt)
Punnett Square (1 pt)
Ratios (1 pt)
Genotype:
______________ = ______________
__________ x ___________
______________ = ______________
______________ = ______________
Phenotype:
STATION 3: Codominance
1. What is Co-dominance?
2. What genotypes do you use for co-dominance?
3. How many phenotypes does co-dominance have?
4. What does the heterozygous phenotype look like?
5. Some flowers exhibit a co-dominant trait. They can have
purple spots, white spots, or both purple and white spots.
What type of offspring would result if a purple spotted cat
mated with a purple and white spotted cat?
A. 100% white spots
B. 100% white and purple spots
C. 50% white spots and 50% purple spots
D. 50% purple spots and 50% white and purple spots
Phenotypes
Key (1 pt)
Genotypes
Parents (1 pt)
Punnett Square (1 pt)
Ratios (1 pt)
Genotype:
______________ = ______________
__________ x ___________
______________ = ______________
______________ = ______________
Phenotype:
STATION 4: Multiple Alleles
1. What are multiple alleles?
2. What is a common example of multiple alleles?
3. What are the 3 alleles for blood type?
4. Which alleles are dominant?
5. Which allele is recessive?
6. What are the 6 possible genotypes for blood type?
7. What are the 4 possible phenotypes for blood type?
8. What are the two ways to get blood Type A?
9. What are the two ways to get blood Type B?
10. What is the only possible way to get blood Type AB?
11. What is the only possible way to get blood Type O?
12. A parent with Type A blood and a parent with Type O
blood have a child. Which of the following is a possible
genotype of their offspring?
A. IAI A
B. IAIB
C. IBi
D. ii
Phenotypes
Key (1 pt)
Genotypes
Parents (1 pt)
Punnett Square (1 pt)
Ratios (1 pt)
Genotype:
______________ = ______________
__________ x ___________
______________ = ______________
______________ = ______________
Phenotype:
STATION 5: Sex linked
1. What is Sex-linked inheritance?
2. What is the genotype for a female?
3. What is the genotype for a male?
4. Which sex chromosome carries the gene? (Hint: which
chromosome does the work..?)
5. If a male is recessive for a trait, what is his genotype?
6. If a female is recessive for a trait, what is her genotype?
7. What is a carrier?
8. Can males be carriers for sex-linked traits? Explain your
answer.
9. What are two common sex-linked traits?
10. Colorblindness is a sex-linked recessive trait. A mother with
normal color-vision and a colorblind father have a colorblind daughter. Which of the following statements is
correct?
A. All of the daughters will be colorblind
B. The mother is a carrier of the colorblindness gene
C. All of their sons will have normal vision
D. All of their sons will be colorblind
Phenotypes
Key (1 pt)
Genotypes
Parents (1 pt)
Punnett Square (1 pt)
Ratios (1 pt)
Genotype:
______________ = ______________
__________ x ___________
______________ = ______________
______________ = ______________
Phenotype:
STATION 6: Pedigrees
1. What does a pedigree show?
2. How can you tell a pedigree is sex-linked?
3. How can you tell a pedigree is Autosomal?
4. How can you tell a pedigree is Autosomal Dominant?
5. How can you tell Autosomal Recessive?
6. Use the diagram below to answer the question that
follows. The pedigree shows the inheritance of hemophilia
across 2 generations.
a. Autosomal or Sex-linked?
b. Dominant or recessive?
c. How many generations?
d. What is the genotype of individual #6?
a. XHXH
b. XHXh
c. XHY
d. XhY
STATION 7: Karyptypes
1. What does a karyotype show?
2. How can you tell it is a boy?
3. How can you tell it is a girl?
4. How can you tell if the child has Down’s Syndrome?
5. How can you tell if the child has Klinefelter’s Syndrome?
6. How can you tell if the child has Turner’s Syndrome?
7. How can you tell if the child is a Hemaphrodite?
8. What is shown in the karyotype below:
A. Normal male
B. Normal female
C. Hemaphrodite
D. Klinefelter’s syndrome male