Exam 3 BIO 150 DR. Luesse

CELL DIVISION ETC.

For cell division what’s the big question

How do dividing cells distribute chromosomes to daughter cells

3 function of cell division

a. asexual reproduction

b. growth and development

c. tissue renewel

define gametes

male or female reproductive cells

define somatic

belonging to the body (as opposed to reproductive)

define mitosis

duplication of somatic cells

define cytokinesis

the division of the cytoplasm

define chromosome

a single long DNA molecule

define chromatid

a copied DNA molecule

sister chromatids

identical copies of the same chromosome

define chromatin

condensed DNA and protein during division

define homologous chromosomes

chromosomes that contain the same genes, but possibly different versions of each gene

Genome

Entire set of DNA instructions in your cells everyone’s is unique more unique than DNA

-DNA

-Chromosomes ( a long DNA molecule) (linear in Eukaryotes in a line strings of nucleic acids polymers

Genes are always

in the same place

Each chromosome has a place so chromosome 15

has a place and its our major eye gene

about 20,000 genes and they don’t change

address/location

The unraveled/unreplicated chromosome

can use it because its not packed

idk about these check the image