11:216:101 Lecture Notes - Lecture 3: Red Blood Cell, Bighorn Sheep, Splitting Field
25 Apr 2017
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Black lice: on its head, he can"t groom his own head. More children, more offspring, means your genes more children have more advantageous genes. Hopefully all children will carry the genes that you want. 1 species gives rise to multiple species that can exploit different niche. Niche: all living (biotic) and nonliving (abiotic) conditions that an organism can tolerate. Habitat: a place or physical setting in which an organism lives. Speciation: divergence of existing species to a new species (or multiple species) Hard lava-> rock -> soil, bacteria, fungi -> soil. Some birds, lizards, turtles, plants manage to survive. Allele= 1 or 2 variation of a gene. Dominant (expressed) trait always written in capital letters. Recessive (not expressed) trait always written in lowercaseb. Black hair from both parents (dominant) bb. 4 ways allele frequencies changes: mutation, agouti gene, gene flow, gains and losses of alleles from the population immigration - individuals moving into an area.
