Key Terms
Punnett Squares
Pedigrees
Complex Inheritance
Surprise!
100
The mating of two organisms.
A) Brood
B) Cell Division
C) Cross
D) Dihybrid
C) Cross
100
What percentage of offspring will show the dominant phenotype?
100%
100
The trait shown in the pedigree is most likely ___.
a) Dominant
b) Recessive
c) X-linked
b) Recessive (because it skips a generation).
100
In carnations, red and white are both dominant. The flower shown here has the genotype RW, and exhibits both dominant traits equally. This is an example of ____.
a) Codominance
b) Incomplete dominance
c) X-linked inheritance
d) Complete dominance
a) Codominance
100
Which of Mendel's Laws says that offspring inherit two copies of each allele, but only pass on one copy to their own offspring?
A) The Law of Inheritance
B) The Law of Segregation
C) The Law of Independent Assortment
D) Mendel's Law
B) The Law of Segregation
200
Alternate version of a gene.
A) Trait
B) Allele
C) Homozygote
D) Gamete
B) Allele
200
This cross shows a heterozygote being crossed with a _______ individual.
a) Homozygous recessive
b) Homozygous dominant
c) Heterozygous
a) Homozygous recessive
200
What is the relationship between I-1 and III-4?
Grandfather / Grandson
200
In mice, black fur (BB) and white fur (WW) are both dominant. A mouse with the genotype BW will have grey fur. This is an example of:
a) Codominance
b) Incomplete dominance
c) X-linked inheritance
d) Complete dominance
b) Incomplete dominance
200
In plants, GG ang Gg code for green leaves, while gg codes for yellow leaves. What is the recessive phenotype?
yellow leaves
300
A segment of DNA that provides instructions for making protein.
A) Gene
B) Trait
C) Allele
D) Chromosome
A) Gene
300
Brown eyes is dominant to blue eyes. Cross a blue eyed person with a homozygous dominant individual. List ALL possible genotypes.
100% Bb
300
The trait above is most likely ____.
a) Dominant
b) Recessive
c) X-linked
c) X-linked
300
Sarah has a blood type of IA i and her husband has a blood type of IB i. Their child has blood type IA IB. This is an example of:
a) Codominance
b) Incomplete dominance
c) X-linked inheritance
d) Complete dominance
a) Codominance
300
Which of the following is usually the most harmful type of mutation?
a) Gene Mutation
b) Frameshift Mutation
c) Deletion Mutation
d) Chromosomal Mutation
d) Chromosomal Mutation
400
The physical expression of an organism's genes.
A) Karyotype
B) Genotype
C) Genome
D) Phenotype
D) Phenotype
400
What is the genotypic ratio of the offpsring?
1:2:1
400
Which of the following is NOT a "pedigree rule"?
a) Recessive traits CAN skip a generation
b) X-linked traits usually show up more often in males
c) Dominant traits must be present in every generation
d) Recessive traits will not show up in every generation
d) Recessive traits will not show up in every generation
400
Human skin color is determined by over 150 different genes. Skin color is an example of ___.
a) Polygenic Inheritance
b) Codominance
c) Mendelian Inheritance
d) Incomplete Dominance
a) Polygenic Inheritance
400
What is the phenotypic ratio of the offspring?
3:1
500
A ____ mutation occurs when one nucleotide is SWAPPED with another nucleotide. Example: ATGC --> AAGC
a) deletion
b) frameshift
c) point
d) gene translocation
c) point
500
If Mom's genotype is AaBb, what would you write across the top of a Punnett square?
AB / Ab / aB / ab
500
If this pedigree is tracking a recessive trait, what would be the genotype of II-4?
Bb
500
The allele for color blindness is recessive and located on the X chromosome (Xb). What would be the genotype of a non-colorblind female who has a son with colorblindness?
XB Xb
500
Which of Mendel's Laws says that the genes for eye color and hair color will separate during gamete formation?
A) The Law of Inheritance
B) The Law of Segregation
C) The Law of Independent Assortment
D) Mendel's Law
C) The Law of Independent Assortment