Intro to Genetics

Intro to Genetics - Intro to Genetics Tuesday, February 02,...

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Hereditable variation and differential reproductive success Evolution of acquired characteristics - Lamarck Passage of genetic information from cells of one generation to the next DNA (containing genes) in cell nucleus In the form of tightly coiled chromosomes Chromosomes are a linear body in the cell nucleus that contains genes and is visible under the microscope during cell division Chromatin which is DNA in dispersed uncoiled strands, supported by proteins, wraps around proteins 46 chromosomes per cell in pairs, 23 in gametes 22 pairs of autosomes and 1 pair of sex chromosomes 1 of each pair comes from mother and one from the father What is Heredity? Each member of a homologous pair is similar in size and fuction but differ in information of trait Diploid (2n) Two sets of chromosomes, 1 from each parent Gametes (sperm and ova) Haploid (n) Somatic Cells Somatic Cells - Mitosis Two identical daughter cells Gametes - Meiosis
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Intro to Genetics - Intro to Genetics Tuesday, February 02,...

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