Vocabulary
Genetic Principles
Using the Punnett Square
Miscellaneous
Fill in the blank
100
when an organism as two identical alleles for a trait
(BB or bb)
What is homozygous?
100
This man was the first to develop rules that accurately predict patterns of heredity
Who is Gregor Mendel?
100
Brown (B) fur is dominant over silver-blue fur (b) in minks.
If a homozygous brown mink is mated with a silver-blue mink, and 10 offspring are produced, how many will be expected to be silver-blue?
What is 0?
100
Brown eyes are dominant to blue eyes. If an individual has 1 of each allele (heterozygous) what will their phenotype be?
Brown eyes
100
When heterozygous individuals have an appearance somewhat in between the phenotypes of the two parental varieties it is know as _______.
What is incomplete dominance?
200
factor passed from parent to offspring
What is a gene?
200
In mice, white (W) fur color is dominant over brown (w) fur color. Two white mice reproduce a brown mouse - list their genetics.
What is heterozygous?
What is Ww x Ww?
200
A heterozygous tall plant is allowed to self-pollinate. The possible genotypes of the offspring are -
What are TT, Tt, tt?
200
Brown eyes are dominant to blue eyes. If an individual has 1 of each allele (heterozygous) what will their genotype be?
Bb
200
Used to represent recessive alleles
What is a lower case letter?
300
an inheritable characteristic
What is a trait?
300
Because of the principle of ________, short pea plants must have a homozygous recessive genotype.
What is dominance?
300
The allele combinations of the gametes produced
by an individual with a genotype, AaBb?
What is AB, Ab, aB, ab?
300
What inheritance pattern is shown in this pedigree?
Recessive! (could it be X linked or not?)
300
A ________ _______ predicts the outcome of a genetic cross by considering all possible combinations of gametes in the cross.
What is the Punnett square?
400
the actual genes of an organism such as
PP, Pp, or pp
What is a genotype?
400
When two alleles are expressed (multiple alleles) in heterozygous individuals.
What is co-dominance?
400
Possible alleles contained in the gametes of flowers with purple petals (purple is dominant to white)
What is P or p?
400
Could this trait be X-linked recessive?
No
400
When an organism has two identical alleles for a recessive trait, it is known as ________ _______.
What is homozygous recessive?
500
the outward expression of the genes such as purple or white flowers
What is a phenotype?
500
Genes on different chromosomes will most likely be randomly distributed during meiosis
What is independent assortment?
500
How many squares would the Punnett square contain for a dihybrid-cross between AaBb x AaBb?
What is 16 squares?
500
offspring will inherit one allele, for each trait, from each parent
What is the principle of segregation?
500
Organisms with two different alleles for a particular trait are said to be _________________.
What is heterozygous?