The scientific study of heredity
Augustinian monk and botanist whose experiments in breeding garden peas led to his eventual recognition as founder of the science of genetics (1822-1884)
specific physical characteristic that varies from one individual to another
section of DNA that codes for a specific trait
a genotype with two different alleles.
different forms of a gene
principle of dominance
Mendel’s second conclusion, which states that some alleles are dominant and others are recessive
specialized cell involved in sexual reproduction
process in sexual reproduction in which male and female reproductive cells join to form a new cell
term used to describe organisms that produce offspring identical to themselves if allowed to self-pollinate
parental generation, the first two individuals that mate in a genetic cross
the first generation of offspring obtained from an experimental cross of two organisms
the second generation of offspring, obtained from an experimental cross of two organisms; the offspring of the F1 generation
The likelihood that a particular event will occur
a chart that shows all the possible combinations of alleles that can result from a genetic cross
genetic makeup of an organism
The physical traits that appear in an individual as a result of its gentic make up. What an organism looks like.
Scientific term for having two different alleles for a trait
Scientific term for having two identical alleles for a trait
Scientific term for having two dominant alleles for a trait
Scientific term for having two recessive alleles for a trait
creates a blended phenotype; one allele is not completely dominant over the other
situation in which both alleles of a gene contribute to the phenotype of the organism
(genetics) cell division that produces reproductive cells in sexually reproducing organisms
term used to refer to a cell that contains a complete set of chromosomes
an organism or cell having only a half set of chromosomes
pair of identical chromosomes
a genotype with two of the same alleles.
the study of genetics
For aliens the allele for a star antennae is dominant to the allele for no star. If a pure dominant alien is crosses with a hybrid alien, what would the genotypes of the offspring be?
SS and Ss
In aliens, Q=the allele for a smooth face and q= the allele for face spikes. Give the genotypes for the offspring from Qq x Qq
QQ, Qq, qq
In aliens, Q=the allele for a smooth face and q= the allele for face spikes. Give the phenotype ratio for the offspring.
3 smooth face: 1 face spikes
In a group of 12 people, 9 can roll their tongues and 3 cannot. Which phenotype is dominant?
In a group of 12 people, 9 can roll their tongues and 3 cannot. What is the ratio?
3 tongue rolling:1 cannot roll tongue