Lecture 4 Tree of life

Question 1

Phylogeny

Answer 1

Evolutionary histrory of species
infered from fossils , molecules, genes etc
aided by species concept

Question 2

Phylogeny tree

Answer 2

evo history of a species + relationship between species
hypothesis, based on assumptions

Question 3

Convergent evolution

Answer 3

Those that look alike may not be related

Question 4

Do phylogenetic trees show patterns of similarity or descent?

Answer 4

descent

Question 5

We can assume a species evolved from species next to it on the tree ( true or false)

Answer 5

False , we can only assume that they shared a common ancestor

Question 6

The order species appear on a tree shows sequence of evolution (true or false)

Answer 6

false

Question 7

Taxonomy

Answer 7

how organisms are named/ classified
goal : species get a unique name

Question 8

Biological classification

Answer 8

hierarchal groups aggravated to from groups above

Question 9

Biological groups classifcation

Answer 9

Dear king phillip came(class) over for good soup

Question 10

Bacteria
archea
eukaryote

Answer 10

single celled and multicellular
single celled
single celled and multicellular

Question 11

The differnce between archea and bacteria

Answer 11

The archea can grow in condtions more than 100 celsius ( above boiling point) wheras bacteria can’t

Question 12

Location of Dna

Answer 12

Bcateria–> nucleoid, circular dna
Euks –> nucleus , linear dna

Question 13

Fusion of archean + bacterium

Answer 13

euks have cytoskeleton allow them to change shape evidence = euks share Dna with proks

Question 14

Domain archea

Answer 14

found everywhere ( also no known pathogens)
able to adapt to broad habitats b/c they have various structures and characteristics

Question 15

motility

Answer 15

ability to mover yourself

Question 16

taxis

Answer 16

directional movement

Question 17

most commone sturcure of movement in bacteria is:

Answer 17

flagella

Question 18

clockwise

Answer 18

tumble

Question 19

counter clockwise

Answer 19

go in specific direction

Question 20

Bacteria genetic infromation

Answer 20

Dna circular chromosomes , located in nucleotide
may contain plasmids
can be transferred

Question 21

How do bacteria grow

Answer 21

divide by binary fission
quick , less complicated
results in 2 identical cells
exponential growth

Question 22

Antibioitcs

Answer 22

compounds that inhibit growth of bacteria selective toxicity