Get out a sheet to write down what you
need to study for your mini-test on
Thursday over Genetics.
This game will go on the website tonight
We will be reviewing again tomorrow during
class.
Please come see me for tutorials if you don’t
get something and need it re-explained in
further depth.
GENETICS
REVIEW
ROUND 1 – 5 POINTS EACH
ROUND 2 – 10 POINTS EACH
ROUND 3 - 15 POINTS EACH
1. What are the 23rd pair of human
chromosomes called AND what do they
determine?
1. What are the 23rd pair of human
chromosomes called AND what do they
determine?
Sex
Chromosomes,
They
determine
Gender
You will need to know:
The difference between autosomes
and sex chromosomes
2.
How many phenotypes are found amongst
the offspring?
T
t
T
TT
Tt
T
TT
Tt
2.
How many phenotypes are found amongst
the offspring?
T
ONE
t
T
TT
Tt
T
TT
Tt
You will need to know:
The difference between genotypes and phenotypes
3. When Mendel crossed the pure-bred tall
plant with the pure-bred short plant, all the
offspring were tall because….?
A. No recessive alleles were passed down
B. The offspring were pure-bred tall
C. They all had heterozygous genotypes
D. The short allele is dominant
3. When Mendel crossed the pure-bred tall
plant with the pure-bred short plant, all the
offspring were tall because….?
A. No recessive alleles were passed down
B. The offspring were pure-bred tall
C. They all had heterozygous genotypes
D. The short allele is dominant
You will need to know:
How alleles are passed down from parents
4.
Create a punnett square in which 100% of the
offspring are heterozygous. (use any letter)
4.
Create a punnett square in which 100% of the
offspring are heterozygous. (use any letter)
T
T
t
t
Tt
Tt
Tt
You will need to know:
How to read and create punnett squares
Tt
5. What is the genotype of the circled offspring?
5. What is the genotype of the circled offspring?
ttGG
You will need to know:
How to read a dihybrid cross
ROUND 2
1.
The most accurate description of an
organism with genotype AaBb is?
A. Homozygous Dominant
B. Heterozygous Recessive
C. Homozygous Recessive
D. Heterozygous
1.
The most accurate description of an
organism with genotype AaBb is?
A. Homozygous Dominant
B. Heterozygous Recessive
C. Homozygous Recessive
D. Heterozygous
You will need to know:
The difference between homozygous and heterozygous
2. Below is a picture of what type of mutation?
2. Below is a picture of what type of mutation?
Point Mutation
You will need to know:
The difference between a point mutation and a frameshift mutation
3. An offspring that comes from parents with
different forms of a trait is called a __________?
3. An offspring that comes from parents with
different forms of a trait is called a __________?
A Hybrid
You will need to know:
The difference between a hybrid and a pure-bred
4. When a red flower is mixed with a nopigment flower and it produces pink flowers, this
is called _____________ dominance.
4. 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
5.
When there are two alleles that are
expressed equally it is called?
A. Incomplete Dominance
B. Co-dominance
C. Polygenic Inheritance
D. Multiple Alleles
5.
When there are two alleles that are
expressed equally it is called?
A. Incomplete Dominance
B. Co-dominance
C. Polygenic Inheritance
D. Multiple Alleles
You will need to know:
The definition of co-dominance AND an example
WORTH 20 POINTS
Mendel’s Law of Segregation applies most
specifically to events occurring in the production
of….
A. Offspring
B. Zygotes
C. Gametes
D. Chromosomes
WORTH 20 POINTS
Mendel’s Law of Segregation applies most
specifically to events occurring in the production
of….
A. Offspring
B. Zygotes
C. Gametes
D. Chromosomes
You will need to know:
What the Law of Segregation means
ROUND 3
1.
This dihybrid cross shows you that pea
shape and pea color…?
A. are homozygous
B. are linked
C. are inherited independently
D. have the same alleles
1.
This dihybrid cross shows you that pea
shape and pea color…?
A. are homozygous
B. are linked
C. are inherited independently
D. have the same alleles
You will need to know:
What the Law of Independent Assortment means
2.
Height and skin color are examples of?
A. Incomplete Dominance
B. Co-dominance
C. Polygenic Inheritance
D. Simple Dominance
2.
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
3. What are the allele combinations that can be
found in a person’s sex cells if their genotype is
AaBb?
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
4. What are the possible genotypes for someone
with “B” blood?
4. What are the possible genotypes for someone
with “B” blood?
lB lB or lBi
You will need to know:
The genotypes for the different blood types
5. What is the phenotype of the circled offspring?
P – purple
p - yellow
S - Speckled
s - striped
5. What is the phenotype of the circled offspring?
Purple and
striped
P – purple
p - yellow
S - Speckled
s - striped
You will need to know:
How to fill in a dihybrid cross