Evidence for evolution

Question 1

What does evolution promote?

Answer 1

Diversity and adaptation

Question 2

What are the theories for the history of life?

Answer 2

Creationism, Transforms and Evolution

Question 3

What is a ring species?

Answer 3

Connected series of populations that can interbreed with relatively closely related populations but there exists at least two end species that are too distantly related to interbreed.

Question 4

What is evolution?

Answer 4

Any change in gene frequency

Question 5

What is gene frequency?

Answer 5

the relative proportion of a gene in a population

Question 6

What are the laws of mendelian inheritance?

Answer 6

Heredity is not blending
Acquired traits are not inherited
No change in gene frequencies

Question 7

What is Weismann’s principle?

Answer 7

hereditary information moves only from genes to body cells, or gremlin to soma, not the other way around.

Question 8

What is the central dogma?

Answer 8

there is a two step process, transcription and translation, by which information in genes flows into proteins, DNA, RNA, Proteins, not the other way around

Question 9

What is the Hardy-Weinburg equilibrium?

Answer 9

The gene frequency in a population not evolving. The frequency of alleles in a population will remain constant from generation to generation.

Question 10

What are the conditions for HWE?

Answer 10

No mutation
No selection
Random mating
Mendelian inheritance
Large population with no genetic drift

Question 11

What is genetic drift?

Answer 11

Chance events that cause allele frequencies to fluctuate unexpectedly from one generation to the next, occurs because mendelian inheritance isn’t exact

Question 12

What is a mutation?

Answer 12

A heritable change in genetic material

Question 13

What is the ultimate source of new alleles?

Answer 13

Mutation

Question 14

How are mutations in multicellular organisms passed on?

Answer 14

Only passed on if in cell lines that produce gametes

Question 15

What is a point mutation?

Answer 15

Change in one single thing

Question 16

Is mutation an important mechanism for evolution?

Answer 16

No, happens at a relatively low rate

Question 17

What is non mendelian inheritance?

Answer 17

any pattern in inheritance where traits do not segregate in accordance to menders laws

Question 18

What is meiotic drive?

Answer 18

Intergenomic conflict, where one or more loci in the genome will effect a manipulation - favours transmission of one or more alleles over another, regardless of its expression. Class of selfish genes. However is very rare

Question 19

What is molecular drive?

Answer 19

Evolutionary process that changes the genetic composition of a population through DNA turnover mechanisms. Can convert slightly different genes into identical copies of themselves.