DNA and RNA are carriers of genetic information through transcription, translation and replication.
A diverse gene pool is vital for the survival of a species because environmental conditions change.
Individuals with more favorable phenotypes are more likely to survive and reproduce, passing favorable genes to their offspring.
Mutations in DNA and recombinations during meiosis are sources of variation.
Inbreeding, small population size, nonrandom mating, the absence of migration and the net lack of mutations can lead to a loss of genetic diversity.
Some phenotypic variations significantly increase or decrease the fitness of a population.
-sickle cell anemia (decreases fitness)
A diverse gene pool is vital for the survival of a species because environmental conditions change.
Individuals with more favorable phenotypes are more likely to survive and reproduce, passing favorable genes to their offspring.
Mutations in DNA and recombinations during meiosis are sources of variation.
Inbreeding, small population size, nonrandom mating, the absence of migration and the net lack of mutations can lead to a loss of genetic diversity.
Some phenotypic variations significantly increase or decrease the fitness of a population.
-sickle cell anemia (decreases fitness)