BIOL 1070 Lecture 2: BIO week 2-LEC 3
5 Dec 2012
School
Department
Course
Professor
Document Summary
Finger length difference relates to hormone levels (testosterone) in the womb. Genotypic variation- some people have genes that produce different finger lengths. Phenotypic variation- hormone levels when fetus is growing: more general features of that organism, what the organism looks like, how an organism acts. Because if mussels coming from other lakes, there would be more diversity and not less. A molecular unit of heredity in a living organism. It is made up of stretches of dna and rna that may code for a type of protein have a function in the organism. Is a form of a gene or group of genes. Different alleles may result in different traits, such as eye or flower petal color. However, different alleles may give rise to the same trait resulting in genetic variation in alleles with little or no variation in traits. Errors in dna replication- occurs at random. Do not occur in order to benefit the organism.
