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gene pool
Question | Answer |
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19. What is a gene pool? | all the genes of all the members of a particular population alleles |
20. What is a mutation? | changes in sequence of dna |
21. What will happen to a species (organism) that lacks variation that allows it to adapt to its environment? | it will die off |
22. What happened with the peppered moths in the 1800’s in England? Which color was more fit for its’ environment? | they adopted their enviroment |
23. In Arizona, a rabbit had a litter of babies. Some of its offspring were white and some were brown. An owl started to prey and eat the white rabbits. This is an example of: | survival of the fittest / nstural selection |
25. Water fowl such as ducks and swans have webbed feet whereas birds on land have clawed feet. What would explain this difference? | adaption |
26. What are the two sources of genetic variation? | mutations and gene shuffling |
could natural selection occur with genetic varietion ? | no populations would die |
27. According to this family tree how many animals have jaws? | 4 |
28. According to this family tree which member probably changed the least over time? | charlie brown |
which member has the most similardna to charlie blue green ? | charlie blue yellow |
what do all organisms have in common that allows them to pass on genetic information to their offspring ? | dna |
as species evolve and cannot reproduce with each other they become | reproductuly isolated |
list three types of reproductive isolation | 1 behavioral 2 geographic 3 temporal |