Genetics 12 Nov Flashcards
(30 cards)
An organism’s physical appearance, or visible traits.
Phenotype
Having two identical alleles for a trait.
If X is a dominant allele and x is a recessive allele, homozygous is written as XX or xx.
Homozygous
Alleles
The different forms of a gene
An allele whose trait always shows up in the organism when the allele is present.
Dominant Allele
Heterozygous
Having two different alleles for a trait.
If X is a dominant allele and x is a recessive allele, heterozygous is written as Xx
Gene
A segment of DNA on a chromosome that codes for a specific trait.
A chart that shows all the possible combinations of alleles that can result from a genetic cross.
Punnett Square
Dominant Allele
An allele whose trait always shows up in the organism when the allele is present.
An organism that has two different alleles for a trait; an organism that is heterozygous (Xx) for a particular trait.
Hybrid
The scientific study of heredity.
Genetics
Genotype
An organism’s genetic makeup, or allele combinations.
Homozygous
Having two identical alleles for a trait.
If X is a dominant allele and x is a recessive allele, homozygous is written as XX or xx.
The passing of traits from parent to offspring.
Heredity
Recessive Allele
An allele that is masked when a dominant allele is present.
Phenotype
An organism’s physical appearance, or visible traits.
A segment of DNA on a chromosome that codes for a specific trait.
Gene
Trait
A characteristic that an organism can pass on to its offspring through its genes.
Punnett Square
A chart that shows all the possible combinations of alleles that can result from a genetic cross.
Heredity
The passing of traits from parent to offspring.
Probability
The likelihood that a particular event will occur.
An organism’s genetic makeup, or allele combinations.
Genotype
Genetics
The scientific study of heredity.
An allele that is masked when a dominant allele is present.
Recessive Allele
The different forms of a gene.
Allele
