Chromotin Chromosome Sex Determining Mechanism Chromosomal mechanisms (XY) Two sex chromosomes of different sizes,X is larger Females are XX,males are XY Males determine the sex of the offspring
✓Sex Determining Mechanism Chromosomal mechanisms (XY) ❖ Two sex chromosomes of different sizes, X is larger ❖ Females are XX, males are XY ❖ Males determine the sex of the offspring Chromotin & Chromosome
Chromotin Chromosome Sex Determining Mechanism Chromosomal mechanisms (XY) Y chromosome TDF:testis-determining factor SRY:sex-determining region of Y chromosome PAP SRY Yp Centromere AZFa(USP9 Y and DBY) AZFb(RBM) AZFc (DAZ) PAR
✓Sex Determining Mechanism Chromosomal mechanisms (XY) Y chromosome ❖ TDF：testis-determining factor ❖ SRY：sex-determining region of Y chromosome Chromotin & Chromosome
Cellular Basis of Genetics >Chromotin Chromosome >Cell Cycle >Mitosis >Meiosis
Cellular Basis of Genetics ➢Chromotin & Chromosome ➢Cell Cycle ➢Mitosis ➢Meiosis
Cell cycle The cell cycle can be regard as the life cycle of an individual cell.It can be divided into two phase. Mitosis(or cell division)-Which results in the production of two daughter cells. Interphase-The interval between divisions during which the cell undergoes its functions and prepares for mitosis
✓ The cell cycle can be regard as the life cycle of an individual cell. It can be divided into two phase. ◆ Mitosis (or cell division) –Which results in the production of two daughter cells. ◆ Interphase-The interval between divisions during which the cell undergoes its functions and prepares for mitosis. Cell cycle
Interphase 9 Hours 10 G: Hours Cell grows and DNA replication carries out norma and chromosome metaboltsm; duplication organelles duplicate Cell G2. Cell grows and prepares Cycle for mitosis s Telotnase 发 Metaphase 4 Hours 1 Hour Mitosis (M Phase)
Cell Cycle