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Flashcards in Natural Deck (20):
1

DNA

a molucule that is present in all living things, that determines info and the traits that a living thing enherits.

2

Nucleotide

in a nucleic-acid chain, a sub-unit that consists of a sugar, a phosphate, and a nitrogenous

3

Mutations

a change in the nucleotide-base sequence of a gene or DNA molecule

4

adaptation

a characteristic that improves an individuals ability to survive and reproduce in a particular enviroment

5

species

a group of organisms that are closely related and can mate to produce fertile offspring

6

evolution

the process in which inherited characteristics within a population change over generations such that new species sometimes arise

7

fossils

the remains or physical evidence of an organisms preserved by geological processes.

8

fossil record

a historical sequence of life indicated by fossils found in layers of the earths crust

9

trait

a genetically determined characteristic

10

selective breeding

the human practice of breeding animals or plants thta have certain desired characteristics

11

natural selection

the process by which individuals that are better adapted to their enviorment survive and reproduce more seccessfully than less well adapted individuals do; a theory to explain the mechanism of evolution

12

generation time

the period between the birth of one generation and the birth of the next generation

13

speciation

the formation of new species as a result of evolution

14

Charraffs rule

DNA from any cell organizm

15

Watson and Crick

The first two twenteth century boiligists

16

Charles Darwin

a british naturalist from the ninetenth century

17

Primates

the chief bishop or of a province

18

Homo sapiens

The species of hominds

19

Roslin Franklin

Was an english chemist

20

Primates

A type of mammal charicterised of opposible thumbs and a binocular vision