Bio Rec ch11
Terms
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- How doProkaryotes divide?
- Binary Fission
- What are the 3 stages ofBinary Fission?
-
bidirectional replication of their circular DNA
Cell then elongates anddevelops a septum
finally pinches into two new daughter cellss at the septum - After replication what initates fission?
- Protein FtsZ
- Eukarytotic Chromosomes are mode up of what?
-
Chromatin
40% DNA 60% Protein - Heterochromatin and Euchromatin
-
- more condensed version of the genome that will NOT be expressed
- is the more portion of the genome that will be expressed -
Chromosome Coiling
lenght if uncoiled?
Why coiled? -
2 inches
TO package it neatly inside the nucleus - What is Karyotype?
- The particualur make up of an individuals chromosomes.
- Haploid vs Diploid?
-
each somatic cell is diploid -46 chromosomes
gamete is haploid - 23 chr
conception n + n = 2n - Homologues
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chromosomes that are the same type. Each has two wo one from the mother and one from the father.
Eeven thought each parent contributes different alleles of those genes. - What is the repetitive process of cell growth and division in a eukaryote called?
- The Cell Cycle
- What is the G1 phase for?
-
Primary Growth Phase
Major portion of cell's life - G2 phase?
-
Second growth phase
preperation for genomic speration - Interphase?
- The first three phases of the cell cycle (G1, S1, G2)
- M Phase?
- Mitosis (the M phase) is where the cell's replicated DNA are separated in preparation for actual cell division.
- S Phase?
- Where the cell synthesizes a replica of its genome
- C Phase, Cytokinesis
- the phaseof the cell cycle when the cytoplasm divides, and the literal creation of the two daughter cells occurs