Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
What are the 4 steps of binary fission in bacteria |
1. DNA copies itself and attach to cell membrane 2. Membrane grows longer so dna move to ends 3. Cell contracts in the middle 4. Single cell has two daughter cells with identical copies of dna |
|
|
What are the seven steps in viral replication |
Attachment, entry, replication, biosynthesis, assembly and release |
|
|
What is biosynthesis |
Production of complex molecules within living organisms or cells |
|
|
What are the steps in the cell cycle |
Interphase - G1,S, G0 and G2 Mitosis and cytokinesis |
|
|
What happens at G1 |
Organelles and proteins are made and cellular contents duplicated |
|
|
What happens at the s phase |
Synthesis of DNA duplication |
|
|
What happens at G2 |
Prepare for mitosis, microtubules and check and fix errors |
|
|
What happens at G0 |
Division stops |
|
|
What are the four stages of mitosis |
Prophase, metaphase, anaphase and telophase |
|
|
What happens at prophase |
Chromosomes condense (shorter and fatter). Centrioles move to opp ends and form militia spindles. Nuclear envelope breaks down - chromosomes free in cytoplasm |
|
|
What happens at metaphase |
Chromosomes line along equator and attach to spindles by centromere |
|
|
What happens at anaphase |
Centromere divides separating chromatids. Spindles contract pulling chromatids to opp poles of spindle by centromere |
|
|
What happens at telophase |
Chromatids uncoil. Nuclear envelope forms around each group of chromosomes |
|
|
What happens at cytokinesis |
The cytoplasm divides |
