DNA Structure/Molecule

Function of DNA

DNA basic function is to store biological/genetic information

Gene Def

a gene is a section of DNA that codes for protein which then determines a trait

Protein Def

Evolves into a certain biological/genetic trait.

Storage of DNA

the DNA is coiled in around histone proteins and coiled onto itself to form a thread-like mass called chromatin in the nucleus

Histone Protein

A protein found in the nucleus of a cell with DNA wrapped around it to form a chromatin

Chromatin

a thread-like mass of DNA in the nucleus of a cell that is not dividing

Chromosomes

A rod-like structure containing super-coiled DNA formed during division

(sister) Chromatid

One of a pair of duplicated chromosome joined at a centromode

Centromere

A section of chromosomes that join 2 chromatids

How many chromosomes does the body have

46 chromosomes

How does coiling DNA help proteins?

-save space

-prevent DNA tangling

-Controlling access to DNA

xx chromosomes

female

xy chromosomes

male

Chromosomes not ready for dividing or growth

Chromosomes ready to divide/grow

are sister chromosomes