DNA Flashcards Preview

life science > DNA > Flashcards

Flashcards in DNA Deck (20)
Loading flashcards...
1

DNA

a appears in all living cells and determines the traits

2

fossilis

are concreted in rock and are saved over time

3

trait

a certian thing that your family passes down

4

nucleotide

composed of a phosphate group, the bases adenine, cytosine, guanine, and thymine, and a pentose sugar, in RNA the thymine base being replaced by uracil.

5

charrgaffs rules

state that DNA from any cell of all organisms should have a 1:1 ratio

6

wattson and crick

is an American molecular biologist, geneticist and zoologist, best known as one of the co-discoverers of the structure of DNA in 1953

7

rosalind franklin

was an English chemist and X-ray crystallographer who made contributions to the understanding of dna

8

mutations

a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome

9

adaptations

the act of adapting

10

speciecs

is the basic unit of biological classification and a taxonomic rank. A species is often defined as the largest group of organisms

11

evolution

any process of formation or growth

12

fossil record

The totality of fossils is known as the fossil record.

13

charles darwin

best known for his contributions to the science of evolution.

14

Selective Breeding

Eugenics is a set of beliefs and practices that aims at improving the genetic quality of a human

15

Natural Selection

the process by which forms of life having traits that better enable them to adapt to specific environmental pressures

16

generation time

is the average time between two consecutive generations in the lineages of a population

17

specitation

the formation of new species as a result of geographic, physiological, anatomical, or behavioral factors

18

primemates

any of various omnivorous mammals of the order , comprising the three suborders Anthropoidea

19

hominode

Despite claims of a new origin story for humans, the fossils more likely belonged to a very distant branch on the primate family tree.

20

Homo sapiens

the species of bipedal primates to which modern humans belong, characterized by a brain capacity