Nucleus Division By Krishna, Aria, & Katie

Nuclear Envelope Also known as the nuclear membrane - surrounds the nucleus Consists of two lipid bilayers - hydrophobic ends face inwards and hydrophilic phosphate heads face outwards Inner nuclear membrane Outer nuclear membrane It also regulates what goes in and out of the nucleus through pores in the membrane Molecules, ions, and proteins

Chromosomes protein and one molecule of deoxyribonucleic acid (DNA) Instructional blueprints Without histones, DNA molecules would be too long to fit inside cells Problems may occur when DNA structures divide and reproduce ex. leukemia and down syndrome 23 pairs of chromosomes, or 46 total one copy of each chromosome is inherited from the female parent and the other from the male parent. XX = female XY = male single chromosome prokaryotes, which is sometimes called a genophore to distinguish it from eukaryotic chromosomes.

Nucleolus Ribosome synthesis Disappears upon cell division https://www.google.com/search?q=Nucleolus&safe=strict&rlz=1C1GGRV_enUS774&source=lnms&tbm=isch&sa=X&ved=0ahUKEwio9tqywvXXAhVi0oMKHZTlDjIQ_AUICigB&biw=1920&bih=949#imgrc=j8G0vdqjOJXYSM: - left Image https://www.google.com/search?safe=strict&rlz=1C1GGRV_enUS774&biw=1920&bih=949&tbm=isch&sa=1&ei=9vUnWpfQNYf4jwSWnJyIDA&q=prophase&oq=prophase&gs_l=psy-ab.3..0i67k1j0j0i67k1j0j0i67k1j0j0i67k1l2j0j0i67k1.52634.54548.0.54754.10.7.1.2.2.0.70.455.7.7.0....0...1c.1.64.psy-ab..0.10.476....0.reK3olYx4Co#imgrc=QUlDzjkhwHb60M: - Bottom Image https://www.google.com/search?safe=strict&rlz=1C1GGRV_enUS774&biw=1920&bih=949&tbm=isch&sa=1&ei=9vUnWpfQNYf4jwSWnJyIDA&q=prophase&oq=prophase&gs_l=psy-ab.3..0i67k1j0j0i67k1j0j0i67k1j0j0i67k1l2j0j0i67k1.52634.54548.0.54754.10.7.1.2.2.0.70.455.7.7.0....0...1c.1.64.psy-ab..0.10.476....0.reK3olYx4Co#imgrc=wYbTfcm9ZBy-WM: - Top Image

Genetic Central Control Also referred to as the Central Dogma Translation & Transcription https://www.google.com/search?q=central+dogma&rlz=1CAHPZS_enUS774&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjr2NX_ifPXAhUrzoMKHbH-AgcQ_AUICigB&biw=1366&bih=677&safe=active&ssui=on#imgrc=_vdBf6DyFlYILM: -Right Image https://www.google.com/search?q=central+dogma&rlz=1CAHPZS_enUS774&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjr2NX_ifPXAhUrzoMKHbH-AgcQ_AUICigB&biw=1366&bih=677&safe=active&ssui=on#imgrc=WkXVIFqjBifS4M: - Left Image - Information

References Cooper, G. M. (1970, January 01). The Nucleolus. Retrieved December 07, 2017, from https://www.ncbi.nlm.nih.gov/books/NBK9939/Function of The Nuclear Envelope/Nuclear Membrane. (n.d.). Retrieved December 07, 2017, from http://www.softschools.com/science/biology/function_of_the_nuclear_envelop e_or_nuclear_membrane/ What is the 'Central Dogma'? (2016, January 25). Retrieved December 07, 2017, from https://www.yourgenome.org/facts/what-is-the-central-dogma