inheritance patterns Flashcards
what is blending theory
- offspring phenotypes are a blend of the parental traits
what is Mendel’s particulate theory of inheritance
- traits are inherited as “particles” with offspring receiving a particle from each parent
what is a monohybrid cross
cross parental varieties with contrasting traits for a single character
what does diploid mean
two copies of each gene
what does haploid mean
having a single copy of each gene
what is Mendel’s law of segregation
2 copies of a gene separate during gamete formation , each gamete receives only one copy
what is Mendel’s law of independent assortment
copies of different genes assort independently (meiosis)
what were 2 successes of Mendel’s experiment
- true breeding lines = offspring identical to the parent
- large sample sizes = able to see clear patterns
how do bacteria exchange genes
conjugation - sex pilus brings two together, genetic material passed through cytoplasmic bridge (conjugation tube)
what is usually transferred in conjugation in prokaryotic inheritance
plasmids