Biological evolution

Question 1

What is the process of evolution?

(3 different scales)

Answer 1

1. Microevolution -> 2.Speciation -> 3. Macroevolution

Question 2

What is the definition of microevolution?

Answer 2

evolutionary changes in a population of species over time

rmb importance of variation and the mechanisms leading to evolution -particulary natural selection

Question 3

What is the definition of speciation?

Answer 3

process in which new species originate ffrom existing ones

Question 4

What is the definition of Macroevolution?

Answer 4

study of the broad pattern of evolution above the species level

Question 5

What is the neo-Darwinism theory?

Answer 5

Traits which are passed down to offspring are coded for by genes
- inheritance of traits is though alleles passed down to offspring in gametes.

Question 6

What does neo-Darwinism thoery explains?

Answer 6

The source of variation in a population is due to
1. mutation (gene/chromosomal)
2. crossing over and independent assortment in meiosis
3. random fusion of gametes -> produce new combi of alleles

Question 7

**

What does it mean when microevolution has taken place?

Answer 7

When the **allele frequence in the gene pool of population changes (↑/↓) over time

Question 8

What is a population?

Answer 8

A group of interbreeding species

Question 9

What does the gene pool of a population mean?

Answer 9

The complete set of all genes that would be found in a population of a species

show the genetic diverisity in a population

Question 10

What is allele frequency?

Answer 10

The proportion of one allele relative to all alleles at one gene locus in the population