BIOLOGY - BIOLOGY PrimaseisanRNApolymerase

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
BIOLOGY - Primase is an RNA polymerase - Growth is a balance of cell birth and death - Normally DNA synthesis is occurring during S-phase, except during DNA repair - Chromosomes are unreplicated in G1 ( | ) - Chromosomes replicate in G2 ( X ) - The amount of DNA in a nucleus doubles during S-Phase, however the number of chromosomes remains constant. Mitotic Cell Division - Chromosomes are only visible during Metaphase - Not all chromosomes look the same during cell division - DNA is loosely packed by being wound around histone proteins, all bound together by the nuclear membrane - Microtubules radiate from centrosomes outside of the nucleus - NEED TO REMEMBER WHAT EACH KIND OF CYTOSKELETON IS MADE OF AND DOES DNA packaging - doule helix is wrapped around an octomer of histone proteins to form nucleosomes. - Selenoid – twisted up nucleosomes. - When DNA is not compounded in interphase, chromosomes remain highly organized. -
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

BIOLOGY - BIOLOGY PrimaseisanRNApolymerase

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online