Parts of a Cell Cornell Notes page 35

Genetics Heredity Traits the study of heredity the passing of traits from parent to offspring Specific characteristics that are determined by genes.

Cell smallest unit of a living thing. looked like tiny cells of a monastery/jail.

Nucleus dark spot inside cell control center; the “brain”

Chromosome inside the nucleus made up of a long strand of DNA location of genes humans have 2 of every chromosome (23 pairs, 46 chromosomes)

Gene instructions for traits sections of DNA on chromosomes found in pairs have specific locations on chromosome

DNA deoxyribonucleic acid long strands that make up genes (instructions)

Robert Hooke Anton Van Leeuwenhoek Robert Brown Used microscope to view samples of cork Gave “cells” their name First to see living micro organisms Gave the name “nucleus” to the dark blob seen in cells.

Draw and label the parts of a cell… Chromosomes Nucleus Gene Pair DNA Cell

Inside a city is a library. Inside the library are books filled with chapters made of letters. Inside a ___ is a ______. Inside the ______are __________ filled with _____made of ____. cell nucleus nucleus chromosomes genes DNA

smallest unit of a living thing Human Part Definition It’s like a . . . Cell smallest unit of a living thing   Nucleus control center (the “brain”) Chromosome location of genes Gene instructions for traits; found in pairs; on chromosomes DNA genes are made up of this chemical