HYS - CH12.4 - Evolution

Question 1

inbreeding depression

Answer 1

loss of genetic variation due to reduced fitness of a population

Question 2

outbreeding or outcrossing

Answer 2

introduction of a group of unrelated individuals into a breeding group

result in increased variation within a gene pool and increased fitness of the population

Question 3

natural selection tenents

Answer 3

certain traits possesed by individuals within a species may help those individuals have greater reproductive success and pass traits into offspring

• organisms product offpspring, few reach reprod maturity
• chance variations may be heritable and favorable (advantage)
• individuals with greater predispotion to variations aare more likley to survive and prodice offspring ensuring future generations
• fitness is related to organisms relative genetic contribution to next gen

Question 4

natural selection as a term is equivelant to

Answer 4

survival of the fittest

Question 5

natural selection is a mechanism for evolition. T/f?

Answer 5

T

Question 6

modern synthesis model (neo darwinism model) and differential reproduction

Answer 6

discovery of inheritance through passing genes

differential reproduction

when mutation or recombination results in a change that is favorable to the organism’s reproductive success, that change is more likely to pass on to the next generation. The opposite is also true.

Over time, those traits passed on by the more successful organisms will become ubiquitous in the gene pool. Because the gene pool changes over time, it is important to note that populations evolve, not individuals.

Question 7

inclusive fitness

Answer 7

measure of an organisms sucess in the population