Home » January 25th, 2011 Entries posted on “January, 2011”

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1. What are the key differences and similarities between natural selection and artificial selection?
2. Give examples of species that are likely to be coevolving.
3. What is the meaning of radiation as used in term adaptive radiation?
4. Draw a phylogenetic tree to match each of the two proposed hypothesis for the evolution of the anole lizards?
5. Propose [...]

January 25th, 2011 | Posted in Blog | Read More »

Questions Chapter 15

1.  Define the biological process of evolution.
2. List the steps of reasoning that Darwin gave to explain the process of natural selection.
3. Relate the roles of adaptation and fitness in the theory of natural selection.
4. Identify an example of a vestigial structure.
5. Describe an example of coevolution.

January 25th, 2011 | Posted in Homework | Read More »

Vocabulary Chapter 15

Evolution, strata,  natural selection, adaptation, fossil, absolute age, homologous structure, vestigial structure,  superposition, biogeography, analogous structure, phylogeny, convergent evolution, divergent evolution. adaptive radiation, artificial selection, relative age

January 25th, 2011 | Posted in Class Work | Read More »

Chapter 13 Notes part 2

 The Human Genome Project

A project in which geneticists tackled in 1990 to map, sequence, and locate all of our DNA and genes by determining all of the 3.3 billion nucleotides and map genes on a chromosome. 20 labs around the world added in drafting the sequence and the project was completed in 2003.
Some of the [...]

January 7th, 2011 | Posted in Class Work | Read More »

Chapter 13 Study Guide

CHAPTER 13 TEST REVIEW

Match one of the following words to the correct description:

 
fingerprinting                   recombinant DNA      (2)       human             cloning
restriction                        complementary                       genome           vaccine
base sequences                 Human Genome Project         DNA microarray
genetic engineering          variable number tandem repeats (VNTRs)
1. DNA ___ has been used in criminal investigations b/c                      1.
    DNA analysis is believed to allow investigators to distinguish        
    [...]

January 7th, 2011 | Posted in Class Work | Read More »

Chapter 13 Notes pt 1

DNA Technology: Section 1
v     Most of the DNA in humans is the same except for .10 percent. Based on this percentage, identification of a person is possible.
DNA determination is useful for determining paternity, identifying human remains, tracing human origins, and providing evidence in criminal cases.
Noncoding DNA—once known as junk DNA.
v     98% of our DNA does [...]

January 7th, 2011 | Posted in Class Work | Read More »

Viral Evasion Gene Reveals New Targets for Eliminating Chronic Infections

Walter and Eliza Hall Institute researchers have discovered how a key viral gene helps viruses evade early detection by the immune system. Their finding is providing new insights into how viruses are able to establish chronic infections, leading scientists to reevaluate their approaches to viral vaccine development.
Researchers from the institute’s Immunology [...]

January 6th, 2011 | Posted in Biology | Read More »

Eating Low-Fat, Thanks to Lupin Proteins

Food should be delicious, healthy and sustainably produced. Researchers are working on new methods to use as many parts of plants as possible for nutrition. In the future, vegetable ingredients could replace animal raw materials. Lupin seeds, for instance, can be used to produce low-fat, exquisite sausage products.
In emerging countries such [...]

January 6th, 2011 | Posted in Biology | Read More »

New Solar Cell Self-Repairs Like Natural Plant Systems

Researchers are creating a new type of solar cell designed to self-repair like natural photosynthetic systems in plants by using carbon nanotubes and DNA, an approach aimed at increasing service life and reducing cost.
“We’ve created artificial photosystems using optical nanomaterials to harvest solar energy that is converted to electrical power,”said Jong [...]

January 6th, 2011 | Posted in Biology | Read More »

Calculating Tidal Energy Turbines’ Effects on Sediments and Fish

The emerging tidal-energy industry is spawning another in its shadow: tidal-energy monitoring. Little is known about tidal turbines’ environmental effects and environmentalists, regulators and turbine manufacturers all need more data to allow the industry to grow.
Engineers at the University of Washington have developed a set of numerical models, solved by computers, [...]

January 6th, 2011 | Posted in Biology | Read More »

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