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Image via Wikipedia Q1: Calculate the frequency of each of the following wavelengths of electromagnetic radiation: Image via Wikipedia 632.8 nm Q2: Calculate the wavelength of each of the following frequencies of electromagnetic radiation: 104.3 MHz A: When solving these types of problems, it is important to remember that wavelength and frequency are inversely proportional. This means [...] Q: List the types of electromagnetic radiation in order of increasing wavelength, increasing energy per photon, and increasing frequency. A: When categorizing electromagnetic radiation, it is important to remember the following trends: Lower energy means a longer wavelength and lower frequency. Image via Wikipedia Q: The distance from the sun to Earth is km. How long does it take light to travel from the sun to Earth?
March 30, 2010 – Pac-Man in Space Image by waynesutton12 via Flickr March 29, 2010 - The Photoelectric Effect Image by Zohar Manor-Abel via Flickr Introduction to Natural Selection Natural selection posits that only a certain percentage of offspring born will survive to reproduce another generation. Individuals with certain genotypes will be more likely to survive, mate, and reproduce their genotypes in subsequent generations. Thus, natural selection acts upon individuals, whereas evolution occurs at the level of a population. There are [...] Altering Existing Genetic Variation Genetic drift is a change in in genetic variation due to chance changes in allele frequencies. For example, genetic drift may occur as a matter of luck; one phenotype may simply never meet a member of the opposite sex in order to mate and produce offspring. Genetic drift is not affected [...] Population geneticists primarily study allele and genotype frequencies. They use quantitative methods to analyze the frequency of alleles. For example, a population geneticist may study the frequency of certain patterns on the fur of wild cats, then will revisit the same population several generations later to find how the frequency of patterns has changed from [...] Species- a natural group that shares a distinct form NASA – NASA’s Kepler Space Telescope Discovers its First Five Exoplanets . If the Kepler spacecraft could discover 5 new planets after just 6 weeks on the job, imagine what else it may find during its tenure until 2012! Onset & Symptoms: Personality changes Treatments: Nothing known to slow or stop the decline Prevalence: 1 in 20,000 people Famous People with the Disease: Woody Guthrie Heritability & Environmental Factors: Caused by a dominant allele Individuals with Huntington’s Disease have one dominant Huntington’s allele and one normal allele. It is [...] |
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