GENERAL BIOLOGY Q1

Cell Cycle

Consists of sequential phases of events wherein the parent cell divides and replicates DNA materials to produce two daughter cells.

Chromosomes

Organized structures where DNA, a double-stranded molecule, is tightly coiled

Chromatin

A complex set of macromolecules containing loose DNA, proteins, and RNA that efficiently packages DNA into a cell's nucleus.

sigma

simga

Prophase

The start of mitosis where chromatin condenses into tightly coiled chromosomes and spindle fibers are formed.

Anaphase

Cleavage furrow forms a bit :3 Sister chromatids separate and move towards opposite poles of the cell due to spindle fibers.

Sister Chromatid

Identical copies formed by the replication of a chromosome

Kinetochore

Group of proteins located at the centromere that isattached to the long spindle fibers during cell division

Telomeres

Structures located at the ends of DNA molecule;contains repeated nucleotides which contain genetic information that do not translate into traits

46

Normal amount of chromosomes in a human

Gap 1

Most of their life cycle is spent in this phase, increases size of cells and organelles double

Synthesis

Replication occurs, microtubules are produced in this stage

Gap 2

Critical checkpoint before transitioning to next stage.

Sexual Reproduction

Involves 2 specialized cells with gametes

Binary Fission

Makes copy of cell, bacteria

Chromatin

Loose DNA

Chromosome

Condensed DNA

Gap 0

Cells are unlikely to divide but still continue to perform normal functions.

3 Parts of the Cell Cycle

Interphase, Mitosis, Cytokinesis

Anchorage Dependent

Cells must be attached in order to divide

Deoxyribonucleic Acid

DNA