ANSC 101 Chapter Notes - Chapter 18: Zygosity, Probability Distribution, Genetic Code
13 Oct 2016
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From primordial germ cell to primary spermatocyte to secondary spermatocyte. Primordial/secondary spermatocyte to spermatids to functional sperm. Primary germ cell to primary oocyte to secondary oocyte. Fertilization: formation of diploid zygote from haploid sperm and ovum (diploid paired chromosomes) Each parent contributes one-half of an offspring"s genotype. The location of a gene on a chromosome is the locus. Each chromosome is a double helixstructure of dna. Dna is comprised of phosphate, deoxyribose sugar, and four nitrogenous bases (a, t, g, These 4 letters of the genetic alphabet carry the code. The code is read by a process called (cid:858)transcription(cid:859) and the protein is synthesized is referred to as (cid:858)translation(cid:859) Dna to messenger rna (mrna) to protein. Formation of mrna from a dna sequence (gene)in the nucleus. Formation of a protein from an mrna sequence. Codon a sequence of 3 nucleotides that codes for an amino acid.
