Genetics Study Guide
Genetics Study Guide BIO 3180-001
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This 4 page Study Guide was uploaded by La-Teisha Allen on Sunday September 18, 2016. The Study Guide belongs to BIO 3180-001 at University of North Carolina at Pembroke taught by Conner Iknokwayyo Sandefur in Fall 2016. Since its upload, it has received 6 views. For similar materials see Genetics in Biology at University of North Carolina at Pembroke.
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Date Created: 09/18/16
Study Guide Mitosis and Meiosis (Draw and label) Non disjunction Ploidy aneuploidy and euploid DNA organization virus, bacteria Eukaryotic chromatin Condensation(Hierarchy) Types of genomes DNA (Draw and Label) DNA Structure and Function Nucleotide structure (carbons) How nucleotides are linked (1. sugar phosphate back bone 2. Hydrogen bonds) Replication and mutation Viral chromosomes exist in a variety of conformations and can be made up of ________. DNA or RNA Eukaryotic chromosomes contain two general domains that relate to the degree of condensation. These two regions are ________. Heterochromatin and Euchromatin Chromatin of eukaryotes is organized into repeating interactions with protein octomers called nucleosomes. Nucleosomes are composed of which class of molecules? Histones The classic Hershey and Chase (1952) experiment that offered evidence in support of DNA being the genetic material in bacteriophages made use of which of the following labeled component(s)? Phosphorus and Sulfur The basic structure of a nucleotide includes ________. Base, sugar and phosphate Regarding the structure of DNA, the covalently arranged combination of a deoxyribose and a nitrogenous base would be called a(n) ________. Nucleoside If 15% of the nitrogenous bases in a sample of DNA from a particular organism is thymine, what percentage should be cytosine? 35% Which of the following terms accurately describes the replication of DNA in vivo? Semidiscontinous The discontinuous aspect of replication of DNA in vivo is caused by ________. The 5’ to 3’ polarity restriction A class of mutations that results in multiple contiguous amino acid changes in proteins is likely to be which of the following? frameshift Two formal terms used to describe categories of mutational nucleotide substitutions in DNA are ________. Transversion and transitions Mutations that arise in nature, from no particular artificial agent, are called ________. Spontaneous mutations If a typical somatic cell has 64 chromosomes, how many chromosomes are expected in each gamete of that organism? 32 An interesting group of ants consists of several virtually identical, closely related species, with females having chromosome numbers of 18, 20, 32, 48, 60, 62, and 64. If one crossed a female of species (A) with 32 chromosomes and a male species (B) with 9 chromosomes (males are haploid, and each gamete contains the ncomplement), how many chromosomes would one expect in the body (somatic) cells of the female offspring? 25 Klinefelter syndrome in humans, which leads to underdeveloped testes and sterility, is caused by which chromosomal condition? 47, XXY For an individual with the XXY chromosomal composition, the expected number of Barr bodies in interphase cells is ________. One
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