ANTH222 Lecture Notes - Noncoding Dna, Molecular Anthropology, Sexual Reproduction
Document Summary
A pair of homologous chromosomes along the chromosomes are sections of dna called. Variation continues to be generated in our cells. Sexual reproduction tends to reshuffle things so the offspring get new traits of each parent. Does not reproduce new genes, just shuffles them. When the genes are different they are heterozygous. Sometimes one allele will dominate the other leading dominant trait in some things (a may dominant b or other way around. ) Sometimes two recessive alleles come together bringing up traits that were in family members generations before. Evolution (based on molecular view point): a change in the ratio between alleles. (does not happen on an individual level) Put all of our chromosome #11 together there will be 40. Anything that changes the proportion of 2 alleles is evolution.
