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☆☆☆☆☆a species can gradually change into new species
Transcription is the process in which part of the nucleotide sequence of DNA is copied into a complementary sequence RNA. Transcription is helps to preserve the spoken way that allows it to be easily stored and examined in the future. Transcription allows a piece to be referenced in the future.
genes contain the code to make proteins
proteins are made from instructions in genes
Emigration is the act of moving out of a country.
It is distinguished from Immigration that is the act of moving into a new country.
Allele frequency is the frequency (proportion) of alleles in a population. It can be expressed as a percentage or a decimal.
For example, suppose a population has 10 individuals and there are two alleles (A and a) of a gene. Suppose the individuals are as follows:
4 AA individuals = 8 A alleles
4 Aa individuals = 4 A alleles and 4 a alleles
2 aa individuals = 4 a alleles
So there are (8 + 4) = 12 A alleles in the population and (4 + 4) = 8 a alleles in the population.
The frequency of A alleles is therefore 12/20 = 0.6 or 60%.
The frequency of a alleles is 8/20 = 0.4 or 40%.
(Notice that the total number of alleles equals 1.0 or 100%.)
There must be genetic variation in the population
The system must not be in hardy-weinberg equilibrium.
resources must be limited in the ecosystem
The phenotype changed, which resulted in a black color adaptation.
The peppered moth had white bodies and wings, peppered with black. This coloration blended well into the original British countryside, hiding them from their predator the birds. Factories of the early industrial revolution covered everything with soot. Now the white stood out against the black surroundings making them easy targets for birds. Over time the white moths were wiped out. But, a few of them were darker in color, these survived and multiplied such that the white peppered moth was replaced buy the dark ones.
Black moths were selected for when the trees turned black.
the moths with the high fitness were selected for
The black moths were more fit for survival, so their phenotype frequency increased.
Why do organisms in different places have different traits (apex)
How does allele frequency change between generations?~
The method an organism uses to produce offspring
the way that a species creates offspring
The conditions for the Hardy-Weinberg Equilibrium are no mutation, migration, natural selection or random drift.
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