Final Exam New Content Set 4 Flashcards
genetics of simple dominant traits
To express the trait, you only need one dominant allele.
genetics of simple recessive traits
Identical alleles for the trait require both recessive ones for expression.
genetics of gender determination
X and Y chromosomes determine sex: females inherit two X chromosomes, males one X from their mother and one Y from their father
genetics of sex-linked traits
Sex-linked traits are inherited through sex chromosomes, with males more prone to be affected, while females can carry them. Males express these traits with a single X chromosome carrying the gene.
genetics of two-factor matings (dihybrid crosses)
parents with different alleles breed. One parent has two dominant alleles, while the other has two recessive alleles. The F1 offspring are all heterozygous.