BIO <3

• speciation -

  It is an evolutionary

  process that leads to the

  formation of a new and

  distinct species that is

  reproductively isolated

  from another species.
• Variation - means that some individuals have traits better suited to the environment than others.
• Natural selection - can lead to

  speciation, where one species gives rise to a new and distinctly different species.
• Cell cycle - is an ordered series of events involving cell growth and cell division that produces two new daughter cells.
• During Interphase the

  cell undergoes normal

  growth processes

  while also preparing

  for cell division.
• Mitosis - This is the stage of chromosome separation and the cell divides into two

  separate entities.
• The G0 phase, also known as the resting phase, is the phase of the cell

  cycle during which a cell is neither dividing nor preparing to divide.
• Resting phase - During this period the cell performs regulatory and its basic cellular functions
• Does cell cycle control matter? Yes
• G2 phase is also known as the growth

  phase. The cell again diverts its energy into synthesizing more protein and grows in size to get itself ready for the mitosis stage.
• Human beings contain approximately 30 trillion cells 
• • Chromatin basic material of DNA
• • Chromosome denser and coiled version of chromatin
• • Egg cells have 23 sets of chromosomes
• • Meiosis formation of gametes
• Telophase - formation of the cleavage furrow retraction of spindle fibers
• Karyokinesis - new nucleus are formed
• Cytokinesis - formation/complete development of 2 daughter cells
• Anaphase - centrioles break apart chromosomes to separate sister chromatids
• Centrioles - are tube-like structures
• xx is for female, xy is for male