Lecture 2

Question 1

eukaryotic cells may have originated as –

Answer 1

predators

Question 2

eukaryotes have – genomes

Answer 2

hybrid

Question 3

genetic info has been – since the days of the last common ancestor of all living things

Answer 3

conserved

Question 4

eukaryotic genomes are significantly – than prokaryotic ones

Answer 4

bigger

Question 5

humans have more – DNA genes

Answer 5

regulatory

Question 6

humans have – times more genes than e. coli

Answer 6

10

Question 7

most bacteria and archaea have – genes

Answer 7

1000-6000

Question 8

e. coli genome size

Answer 8

4.6 million

Question 9

e. coli genes #

Answer 9

4300

Question 10

human genome size

Answer 10

3200 million

Question 11

human genes #

Answer 11

30,000

Question 12

– of human genome does not code for proteins

Answer 12

98.5%

Question 13

– of E. coli genome does not code for proteins

Answer 13

11%

Question 14

new genes are generated from –

Answer 14

preexisting genes

Question 15

four modes of genetic innovation

Answer 15

intragenic mutation, gene duplication, DNA segment shuffling, and horizontal transfer

Question 16

homology - speciation gives rise to two separate species

Answer 16

ortholog

Question 17

homology - gene duplication and divergence

Answer 17

paralog

Question 18

the – in the zygote determines the nature of the whole multicellular organism

Answer 18

hereditary info

Question 19

skin cells, neuron, and pigment cells

Answer 19

ectoderm

Question 20

sperm and egg

Answer 20

germ cells

Question 21

muscle cells, tubule cell (of kidney), RBC

Answer 21

mesoderm

Question 22

lung cell, thyroid cell, pancreatic cell

Answer 22

endoderm

Question 23

different cells – different genes at different times at different levels

Answer 23

express