Year 12 Essential Biology

Question 1

Carrying Capacity

Answer 1

The size of the population that can be supported indefinitely on the available resources and services of that ecosystem

Question 2

Gene

Answer 2

Regions/s of DNA that are made up of nucleotides; the molecular unit of heridity

Question 3

Polygenetic Inheritance

Answer 3

When one characteristic is controlled by two or more genes

Question 4

Microevolution

Answer 4

Small scale variation of allele frequencies within a species of population, in which the descendant is of the same taxonomic group as the ancestor

Question 5

Clade

Answer 5

A group of organisms that consists of a common ancestor and all its lineal decendants

Question 6

Genome

Answer 6

All the genetic material in the chromosomes of an organisms, including its genes and DNA

Question 7

Evolution

Answer 7

CHnage in the genetic composition of a population during successive generations, which may result in the development of a new species

Question 8

Macroevolution

Answer 8

The variation of allele frequencies at or above the level of species over geological times, resulting in the divergence of taxonomic groups, in which the descendant is in a different taxonomic group than the ancestor