Vocab
This term describes having two different alleles for a trait.
What is Heterozygous?
The law stating alleles separate during gamete formation.
What is the Law of Segregation?
The genotype ratio of Aa × Aa.
What is 1 AA : 2 Aa : 1 aa?
The chance of getting a recessive offspring from Tt × Tt.
What is 25%?
Two tall plants produce a short offspring.
What is Tt × Tt?
The physical appearance of an organism.
What is phenotype?
This law explains why one allele can mask another.
What is the Law of Dominance?
The percentage of recessive offspring from Bb × Bb.
What is 25%?
If the chance of a dominant trait is ¾, this does NOT mean this exact outcome.
What is exactly 3 out of 4 offspring?
A dominant phenotype appears in all offspring. One parent is recessive.
What is TT × tt?
This term describes an organism that has two identical alleles for a trait.
What is homozygous?
This law explains why each trait is inherited independently of other traits, assuming the genes are on different chromosomes.
What is the Law of Independent Assortment?
A cross that produces 50% dominant and 50% recessive offspring.
What is Aa × aa?
A dominant trait appears in half the offspring. One parent is recessive.
What is Tt × tt?
This term refers to the genetic makeup of an organism and is written using letters, not physical traits.
What is genotype?
This principle explains why each gamete receives only one allele from each gene, ensuring offspring get a combination of alleles from both parents.
What is the principle of segregation?
These are different versions of the same gene that can produce variations in a trait.
What are alleles?
This stage of cell division explains Mendel’s Law of Segregation.
What is meiosis?