Unit 3 vocab words

Question 1

Trait

Answer 1

A distinguishing characteristic of an organism

Question 2

Genetics

Answer 2

The study of how traits are passed from parents to offspring

Question 3

Gene

Answer 3

A section of a chromosome that has genetic information for one trait.

Question 4

Phenotype

Answer 4

How a trait appears or is expressed

Question 5

Genotype

Answer 5

The two alleles that control the phenotype of a trait

Question 6

Inheritance

Answer 6

The passing of traits from generation to generation

Question 7

Dominant Trait

Answer 7

The factor that blocks another genetic factor

Question 8

Recessive Trait

Answer 8

The genetic factor blocked by the dominant factor

Question 9

Chromosome

Answer 9

A DNA-containing structure that carries genetic material from one generation to another.

Question 10

Allele

Answer 10

The different forms of a gene

Question 11

Species

Answer 11

A group of organisms that have a similar trait

Question 12

Population

Answer 12

All the organisms of the same species that live in the same area

Question 13

Variation

Answer 13

A difference in an inherited trait among members of a species

Question 14

Natural Selection

Answer 14

The process by which organisms with variations survive in their environment longer

Question 15

Adaptation

Answer 15

An inherited trait that increases an organism’s chance of surviving and reproducing in an environment

Question 16

Homeostasis

Answer 16

An organism’s ability to maintain steady internal conditions when outside conditions change

Question 17

Camouflage

Answer 17

Adaptation is where animals with colors and patterns allow them to blend in with the environment

Question 18

Mimicry

Answer 18

An adaptation in which one species looks like another species