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LIFE 102 Unit 3 Study Guide

by: Lauren Caldwell

LIFE 102 Unit 3 Study Guide LIFE 103 (Biology of Organisms-Plants)

Lauren Caldwell
GPA 3.8

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This was shared with every LIFE 102 student this last semester, and people walked into the class with their versions in hand. The girl sitting next to me during the test became a good friend, and s...
Biology of Organisms
Tanya Dewey; Erik N. Arthun
Study Guide
Life 102, Tanya Dewey, Study Guide
50 ?




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This 2 page Study Guide was uploaded by Lauren Caldwell on Tuesday February 2, 2016. The Study Guide belongs to LIFE 103 (Biology of Organisms-Plants) at Colorado State University taught by Tanya Dewey; Erik N. Arthun in Winter 2016. Since its upload, it has received 96 views. For similar materials see Biology of Organisms in Biology at Colorado State University.

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Date Created: 02/02/16
1. Define genome 2. What makes up chromatin? 3. When do you see chromosomes in a cell? 4. That is ploidy? 5. When will a cell be either diploid or haploid (for humans)? 6. What is the difference between kinetochore and centromere? 7. At what point in cellular replication is DNA replicated? 8. Explain what G0 is and when a cell will go into it 9. What are two differences between a Cleavage Furrow and a Cell Plate? 10.What is so unique about cancer cells? 11.What is the difference between heredity and genetic variation? 12.What term does this define? “Haploid cells that unite with another haploid cell to produce a zygote” 13.What do I mean when I say I have a pair of autosomal homologous chromosomes? 14.What is the difference between homogametic and heterogametic organisms? 15.What type of chromosomes is produced from crossing over? 16.When does crossing over occur? 17.What is the difference between random fertilization, independent assortment, and crossing over? 18.What is a tetrad? What does that term mean? 19.What is a Chasma, and what happens? 20.What are three benefits to asexual reproduction? Two faults? 21.What are three benefits to sexual reproduction? Two faults? 22.What are the two “goals” of Meiosis? 23.Relative to the lifespan of a cell, how long is the N stage of a cell? 24.What is an “N” stage of a cell? 25.How many cells are produced from one “round” of Mitosis? Meiosis? 26.Who the heck was Gegor Mendel and what breeding varieties did he work with? 27.At what stage does the Law of Independent Assortment kick in in a cell’s reproduction? 28.What is the difference between the law of Indpendent Assortment and the law of Segregation? 29.True/False: interbreeding usually occurs within the F1 generation to produce the F2 generation 30.What is the first generation of a genetic experiment called? 31.What is a dihybrid cross? 32.What is a Test Cross and what do scientists use it for? 33.Give an example of incomplete dominance and codominance. 34.True/False: blood types are a case of Pleiotrophy in humans. 35.What is Epistasis? What example was given in class related to this? 36.What is polygenic inheritance and can you provide/explain an example? 37.True/False: Most genetic diseases are multifactorial – a combination of multiple genes and environment impact. 38.True/False: Haploid organisms exhibit a form of dominance that is particular to the gene at hand 39.Humans are X-Y Sex determinants. What is the X-0 sex determinant type? 40.What type of sex determinant do birds express? 41.In the haplo-diploid system of sex determination, which (haploid/diploid) is female? Is male? 42.What is the single gene responsible on the Y chromosome for the male gender? 43.Roundabouts how many genes are on the X chromosome? 44.Following x-inactivation, what forms from the inactivated X chromosome? 45.Define mosaicism and give an example. 46.What is Drosophila and what gender does it impact? 47.What is genetic linkage? 48.What Mendelian law is violated by genetic linkage? 49.What is nondisjunction? 50.There are four types chromosomal alternations? 51.What are the Purines and what are the Pyrimidines? 52.True/False: Complementarity is defined as the fact that a purine always (naturally, at least) bonds with a pyrimidine 53.What end of a strand of DNA is the leading strand? (3’ or 5’) 54.Of the three models in class (semiconservative, conservative, and dispersive), which one is the proven model of DNA replication in reference to the parental strand? 55.What is the origin of replication? What does it produce in a prokaryote? 56.What is the duty of Topoisomerase? 57.What is an analogy of what helicase does in DNA replication? 58.What does SSBP do? What does it come BEFORE in the order of DNA replication? AFTER? 59.What is primase? 60.What is the ratio of mistakes that occur in genetic replication? 61.What are telomeres? What theory do scientists associate with telomeres and age?


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