Mitosis
In order, what are the phases of mitosis?
PMAT!
In order, what are the phases of interphase?
G1: Cell growth
S: DNA synthesis
G2: Cell continues to grow and prepare for meiosis
What is the law of segregation?
Only one allele will be expressed in a given gamete
What is the result of mitosis?
Two identical daughter cells
What is the result of meiosis?
Four unique daughter cells
What is the law of independent inheritance?
Traits are inherited regardless of one another
What type of reproduction is mitosis?
Asexual
Define aneuploidy
An abnormal number of chromosomes
What is a dihybrid cross?
A cross of heterozygotes following two traits; 9:3:3:1 phenotypic ratio
What is the purpose of Cdks?
Cyclin dependent kinases; bind to cyclin to form MPF which phosphorylates proteins
What is the difference between meiosis I vs meiosis II?
I: Reductional division, homologous chromosomes are separated going from 2n > n
II: Equational division, sister chromatids are separated reducing the amount of DNA
Define epistasis
Expression of one gene is suppressed by presence of another
How many sister chromatids would be present after interphase in human cells (2n=46)?
After replication of DNA, 92 sister chromatids would be observed.
In what phase do sister chromatids separate from each other?
Anaphase II
Given AaBB x AaBb, what is the likelihood of the offspring presenting all dominant phenotypes?
3/4