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Notes: Drawing the tree of life
Notes: Drawing the tree of life

... Drawing the tree of life notes on biological taxonomy and the species concept Biological taxonomy is the science of grouping organisms (plants, animals, anything alive) and establishing relationships between the groups. In biology, such groups are called taxa. The term taxon encompasses a group at a ...
Molecular Evidence for Evolution
Molecular Evidence for Evolution

... 1. What is a regulatory gene? How might they explain differences between organisms? 2. What are "hox genes"? What phase of development are they a part of? What organisms have hox genes? 3. If you find a fly with a leg coming out of its head and can identify what happened genetically to cause this, w ...
Speciation
Speciation

... Best estimates from the fossil record indicate that greater than 99% of species that have exited are now extinct. A typical “lifetime” for a species is about 1 million years. ...
Final Study Guide
Final Study Guide

... the fossil imprint of a fern frond and some fossil moss. Assuming the rock has not been disturbed, which of the following is the most probable conclusion that you can draw from your observations? 46. Which group of organisms is believed to have been the earliest to evolve? 47. Urey and Miller subjec ...
3. Identification of species, sex and individuals
3. Identification of species, sex and individuals

... – Paul Hebert et al. proposed DNA barcoding as a way to identify species (Biological identifications through DNA barcodes, Proc. R. Soc. Lond. B 2003) – Short DNA sequences as standards • Animals: 648 bp region in the mitochondrial cytochrome c oxidase 1 gene, CO1 • Plants: two chloroplast gene regi ...
Genomic sequencing
Genomic sequencing

...  many pathogenic viruses and bacteria  pest species, e.g. mosquito  model organisms which aid the understanding of the malfunctioning of genes, and possible new treatment. ...
Lecture 10
Lecture 10

... • Genetic markers are employed in genealogical DNA testing for genetic genealogy to determine genetic distance between individuals or populations. • With the aid of genetic markers, researchers were able to provide conclusive evidence that the cancerous tumor cell evolved into a transmissible parasi ...
Cladistics - Cougar science rocks!
Cladistics - Cougar science rocks!

E._coli_Topo_IV
E._coli_Topo_IV

Classification of Living Things
Classification of Living Things

... Systematics - the diversity of organisms at all levels One goal of systematics is to determine phylogeny (evolutionary history) of a group Phylogeny often represented as a phylogenetic tree A diagram indicating lines of descent Each branching point: - Is a divergence from a common ancestor - Repre ...
1 Protein Synthesis Simulation Lab This lab was originally created
1 Protein Synthesis Simulation Lab This lab was originally created

... 4. The original DNA strand serves as a template. What does the term template mean? 5. Draw the first three nucleotide sequences of the RNA molecule whose bases you determined in question 3. Remember that RNA is only half as large as a DNA molecule. 6. What protein fragment would the mRNA sequence yo ...
Name Date ______ Period
Name Date ______ Period

... What does our DNA determine about us? ...
Salmon sperm DNA Sodium Salt A2160 Literature Comment
Salmon sperm DNA Sodium Salt A2160 Literature Comment

...      (1)     Sambrook, J., Fritsch, E.F. & Maniatis, T. (1989) Molecular Cloning: A Laboratory Manual, 2nd Edition; page 9.48. Cold Spring Harbor Laboratory Press, Cold Spring Harbor, New York. ...
name period ______ date
name period ______ date

... 4. What is the name given to the point where replication starts on a DNA molecule? 5. How does the replicated daughter molecule of DNA compare to the parent molecule of DNA? 6. What would the complementary bases be if one side of a DNA molecule had the bases adenine, cytosine, cytosine, thymine, thy ...
Deoxyribonucleic acid sodium salt from human placenta (D7011
Deoxyribonucleic acid sodium salt from human placenta (D7011

... well as participation by another form of RNA, ribosomal RNA. ...
Data management
Data management

... 1675 Leeuwehoek discovered protozoa and bacteria 1855 Escherichia coli bacterium is discovered (major research and production tool for biotechnology 1879 Flemming discovered chromatin, rod-like structures in cell nucleus, later called ‘chromosomes’ 1942 The electron microscope is used to identify an ...
PHYOGENY & THE Tree of life
PHYOGENY & THE Tree of life

Classification of Microorganisms
Classification of Microorganisms

... genes) from an organism and comparing these with the same gene set from different strains of the same organism • Can distinguish between closely related strains • While rRNA gene sequence analysis is capable of identifying organisms to the genus level, MLST is useful for identifying organisms to the ...
Speciation and Macroevolution - Moodle
Speciation and Macroevolution - Moodle

... genetically isolated by lack of gene flow and then diverge from each other due to natural selection, genetic drift, or mutation. Populations can be recognized as distinct species if they are reproductively isolated from each other, if they have distinct morphological characteristics, or if they form ...
Pairwise Alignments Part 1
Pairwise Alignments Part 1

Genetics practice test
Genetics practice test

... resistance of rare African rice varieties with the productivity and faster maturity of common Asian varieties. Another variety, called Stress-Tolerant Rice, was produced by inserting a pair of bacterial genes into rice plants for the production of trehalose (a sugar). Trehalose helps plants maintain ...
Drawing the tree of life: notes on biological taxonomy
Drawing the tree of life: notes on biological taxonomy

... Biological taxonomy is the science of grouping organisms (plants, animals, anything alive) and establishing relationships between the groups. In biology, such groups are called taxa. The term taxon encompasses a group at any level of generality in the biological hierarchy: in the Linnaean system, th ...
Chapter 14- Origin of Species
Chapter 14- Origin of Species

Why Do Names Keep Changing
Why Do Names Keep Changing

... especially with re-classification of closely related species. Distant relationships best approached by looking at heavily conserved genes such as those for rRNA, including mitochondrial rRNA. Small changes are best observed in selfish DNA or spacers and most commonly spacers between rRNA genes. ...
18–1 Finding Order in Diversity
18–1 Finding Order in Diversity

... members of a genus share a recent common ancestor. All genera in a family also share a common ancestor. However, this common ancestor is farther in the past than the common ancestor of species within a genus. The higher the level of the taxon, the farther back in time is the common ancestor of all t ...
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DNA barcoding

DNA barcoding is a taxonomic method that uses a short genetic marker in an organism's DNA to identify it as belonging to a particular species. It differs from molecular phylogeny in that the main goal is not to determine patterns of relationship but to identify an unknown sample in terms of a preexisting classification. Although barcodes are sometimes used in an effort to identify unknown species or assess whether species should be combined or separated, the utility of DNA barcoding for these purposes is subject to debate.The most commonly used barcode region, for animals, at least, is a segment of approximately 600 base pairs of the mitochondrial gene cytochrome oxidase I (COI).Applications include, for example, identifying plant leaves even when flowers or fruit are not available, identifying insect larvae (which may have fewer diagnostic characters than adults and are frequently less well-known), identifying the diet of an animal, based on its stomach contents or faeces and identifying products in commerce (for example, herbal supplements, wood, or skins and other animal parts).
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