Genetics
Traits
Internal Stimuli
External Stimuli
Hereditary
100

He is known as the father of genetics

Gregor Mendel

100

This is a way to show the possible combinations of genes that offspring of parents could have.

Punnett Squares

100

a specific characteristic that is unique

trait

100

an individual needs this many genes for each trait

2

100

unit of inheritance

gene

200

genetic makeup for a trait

genotype

200

trait that is always expressed or shown

dominant trait

200

bundle of DNA containing many genes

chromosome

200

trait that is covered up or seems to disappear

recessive trait

200

way we look or appear

phenotype

300

these affect the way we look and how our bodies function

traits

300
One dominant gene and one recessive gene for a trait

Heterozygous

300

the individual only has genes for the dominant trait

Homozygous

300

trait information is passed on from generation to generation in the form of this

genes

300

different versions of the same gene

Alleles

400

called the "effect"

response

400

traits can be this

dominant and recessive

400

the maintenance of a stable internal environment

Homeostasis

400

stimulus that comes from inside an organism

internal stimulus

400

called the "cause"

stimulus

500

stimulus that comes from outside the organism

external stimulus

500

stems grow away from gravity and roots grow with gravity

geotropism

500

an animal's natural reaction to a stimulus which it wasn't taught to do

instinct

500

when stems and leaves grow towards light

Phototropism

500

when plants grow towards or away from touch/pressure

thigmotropism

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