Course Hero Logo

BIOA01 Formal Lab Report Central Dogma and Pollen tube formation F2021.pdf

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 1 - 3 out of 21 pages.

BIOA01H3 F – Fall 20211Formal Lab ReportPollen tube formation andthe Central Dogma of Biology1OverviewIn this exercise, you will be studying the phenomenon of pollen tube growth and its relationshipto a set of concepts which have become known as the “central dogma” of Biology.The datayou will receive via Quercus announcement that will be used to complete the BIOA01 formallab report (FLR). More information and materials pertaining to the FLR will be posted onQuercus. This report is worth 10% of your final grade.You must submityour formal lab report via Quercuson Friday October 29thby 12:00pm (noon)EST. All late submissions will be penalized 10% of the final grade per day (including weekends)up to five days late. No late submissions will be accepted without proper documentation (seesyllabus on missed course work protocols) after Wednesday November 3rdat 12:00pm (noon)EST.Objectives1.Gain understanding of the scientific method.2.To learn about a controlled experiment aimed at testing the effects of three biochemicalinhibitors on pollen germination and pollen tube elongation of an angiosperm,Brassicarapa, and analyze a produced data set for your formal lab report.Required Preparations1.Read FLR material carefully and ensure you are familiar with all relevant terms.Understanding of the experiment that was performed is paramount in writing asuccessful lab report2.Read sections 1.3 (pg 13), all sections in Chapter 3 (pgs 51 – 64), 4.1 – 4.2 (pgs 71 – 86),and 28.3 (pgs 626 – 633) in Morris et al. (2019) for relevant background informationExperimental Explanation1.Set up of pollen tube experiment to determine normal rates of germination and pollentube elongation and the effects of each of three biochemical inhibitors.2.Collection and compilation of % Germination and Pollen tube length Data for FLR1This lab is an adaptation of Scott (1995)
BIOA01H3 F – Fall 20212Background InformationThe “Central Dogma” of BiologyFollowing the discovery of the double helix structure of DNA (deoxyribonucleic acid) by JamesWatson and Francis Crick in 1953, a central focus of biology became the study of howmessages, encoded in DNA, direct growth and function of cells and organisms.Prior to thisdiscovery, scientists thought that proteins were the information molecules of living organisms.This was a logical assumption given the diversity of protein structure and function and the factthat proteins carry out most of the essential activities in a cell.However, once it wasestablished that DNA consisted of four nitrogenous bases (adenine, guanine, thymine, andcytosine) that could occur in any order without restriction, the capacity for DNA to be theinformation-carry molecule was fully recognized.How information stored in the DNA can produce proteins in the cell that carry out all cellularwork has become known collectively as the “central dogma” of biology.The central dogmastarts with the DNA.To begin protein synthesis, coding regions located on either one of thetwo DNA strands, are transcribed into an intermediate molecule, RNA (ribonucleic acid).

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 21 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Spring
Professor
KarenWilliams
Tags

Newly uploaded documents

Show More

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture