Gregor Mendel
Gregor Mendel is known as the father of __________.
Genetics
In a cross between two heterozygous individuals for a single trait, this is the probability that an offspring will inherit two recessive alleles.
25%
True or false: A red flower being crossed with a white flower, producing a pink flower is an example of incomplete dominance.
True
This allele will be expressed even if there is only one present in the genotype. Gregor Mendel named a law after it
Dominant allele
What do the circles and squares represent?
Square- Male, Circle- Female
True or False: Gregor Mendel discovered that sometimes dominant and recessive traits blend together to create a new phenotype.
False
What are the allele combinations that would be found in the gametes of an individual with the genotype Aabb.
Ab and ab
A mom with AB blood has a child with a dad who has type o blood. What are the possible phenotypes of their offspring?
A blood or B blood
An allele that will only be expressed is there are 2 copies presents. The allele can "hide"
Recessive allele
Huntington's disease is an autosomal dominant trait. What would be the genotype of an unaffected individual
hh, homozygous recessive
If a child inherits one dominant allele and one recessive allele for a certain trait, this is the phenotype the child will show.
Dominant phenotype
In a monohybrid cross between two heterozygous parents, this is the expected genotype ratio in the offspring.
What is 1:2:1 (homozygous dominant, heterozygous, homozygous recessive)?
Labradors have three potential phenotypes: black (BB), brown (BC), or cream (CC). A mother had a litter of 12 puppies, and 3 of them were cream. What are the most likely genotypes of both parents?
BC and BC.
The physical appearance of a trait.
Phenotype
Describe the shape and shading of the pedigree symbol that represents a female who is affected by albinism
A shaded circle
The law that describes how traits are inherited independently of one another.
The law of Independent Assortment
If a parent is homozygous recessive for a trait and the other parent is heterozygous, this is the probability that an offspring will display the dominant phenotype.
50%
A mother with type A blood (AO) is crossed with a father with type B blood (BO). What is the genotypic ratio of the offspring?
1 AB: 1 AO: 1 BO: 1 OO
A pair of letters that represent the specific alleles present in its DNA
Genotype
Mother had a recessive genetic disorder, cystic fibrosis, and dad is unaffected. What must be the genotype of all unaffected children?
Heterozygous
Gregor Mendel's law that explains that only one allele is passed on from each parent to their offspring.
The law of segregation
In a dihybrid cross between a corgi with the genotype TTbb (long tail, blonde fur) and a parent with the genotype ttbb (short tail, blonde fur), what is the probability the offspring will have a long tail and blonde fur
T- long tail/t- short tail
B- Black hair/b- blonde hair
100%
In owls, color is a codominant trait. Black owls (BB) and white owls (WW) are homozygous. Speckled owls are heterozygous. What is the probability that a speckled owl and a black owl have a black offspring?
50%
A family tree that tracks which members of a family have a particular trait, used to study inheritance patterns of traits through generations.
Pedigree
If two unaffected parents have a child with a genetic disorder, what must the inheritance pattern of the trait be?
Autosomal recessive