BIO_SC 1010 Lecture Notes - Lecture 25: Gene Pool, Population Genetics, Dna Replication
Document Summary
gel made from agarose (sugar) - liquid at high temperatures but cools into a solid form a sieve or filter that separates out molecules by size gel is dyed. 1 in 150 billion chance of 2 people being identical at all 13 spots. Fossil records that old species showed patterns of similarity & differences to living species. Jean-baptiste lamarck: initially thought acquired traits could be passed on (he was wrong) Species can change as a result of interactions with their environment. Individuals with certain inherited traits are more likely to survive & reproduce than are individuals with other traits. Alleles are the result of mutation in the dna. Could be a competition for food, living space, water, mates. Better adapted members are more likely to survive. Survivors will pass on their better genes to their offspring who will also show this beneficial variation.
