cells

smallest structural unit of the body

Cell

The part of the cell that protects the call

Cell membrane

What part of the cell that controls the cells activities and helps the call divide

Nucleus

What part of the cell fills the cell and holds everything together

Cytoplasm

The type of unspecialized cell that can develop into specialized cells

Stem cells

The type of cell that is found in tissues and organs and the main job is to repair damaged tissues

Adult stem cells

Cell type that can become ANY other cell type and more flexible than adult stem cells

Embryonic stem cells

What is the name for DNA & what is the function

Deoxyribonucleic acid Carries genetic information

How many chromosomes are in most body cells , how many pairs ?

46 total / 23 pairs

How many chromosomes are in sperm or egg cells

23 sperm (from dad)

23 eggs (from mom)

How many copies of a dominant gene are needed

1 copy

how many copies of a recessive gene are needed? And from where

2 copies.

1 from mom and 1 dad

What is a mutation

A change in DNA

What type of mutation can be passed down to children and occurs in sperm or egg cells

Gametic mutation

Mutation type that occurs in body cells and can’t be passed to children

Somatic mutations

What is the name for down syndrome

Trisomy 21

Genetic structure located within the nucleus of each cell

Made up of DNA molecules which contains the body’s genes

Chromosome

Sex cell, doesn’t contain 46 chromosomes

Egg and sperm each has 23 chromosomes

X and Y chromosome from dad determines the sex

Gamete cell

Somatic cell

Any cell in the body except the gamete

46 total chromosomes arranged in pairs

XY Chromosomes

Male chromosome pair

XX Chromosome

Female chromosomes pair