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Bottleneck Effect: one type of genetic drift in which a natural disaster kills large numbers of a population regardless of fitness level & the surviving reduced population is likely to have a genetic makeup that is not representative of the original population; allele frequencies are unlikely to be identical to that of the original population

Bottleneck Effect: one type of genetic drift in which a natural disaster kills large numbers of a population regardless of fitness level & the surviving reduced population is likely to have a genetic makeup that is not representative of the original population; allele frequencies are unlikely to be identical to that of the original population

Chromosome maps illustrate how far alleles are on a chromosome using a MAP UNIT.   Map units are based on the frequency of cross-over between the alleles.  In short, the farther apart the alleles are on the chromosome, the more likely they will cross over, or switch positions.  This is a difficult concept for many students to visualize, this worksheet can help them work out a chromosome map.  It includes a simple walk-through and several sample problems.

Practice creating chromosome maps by analyzing the frequency of crossing over in a set of genes located on the same chromosome. The recombination frequency provides clues to the location of the genes on a chromosome.

Rare Genetic Disorders In Humans [INFOGRAPHIC] #genetic #disorders

AP Bio-Now a day’s most of the people are suffering from genetic diseases. This info graphic depicts on various types of genetic disorders. Reports states that individuals affected with Noonan syndrome.

Genetic Bottleneck.  traditional evolution of man ( Darrel R. Falk argument) disputed biblically

traditional evolution of man ( Darrel R.

A Missing Genetic Link in Human Evolution Humans have multiple copies of a gene known as SRGAP2, which is thought to be involved in brain development. Chimps and orangutans have only one copy.  By: Emily Singer

A Missing Genetic Link in Human Evolution Humans have multiple copies of a gene known as which is thought to be involved in brain development. Chimps and orangutans have only one copy. By: Emily Singer

Using Genetic Crosses to Analyze a Stickleback Trait. Punnett squares with Chi square testing!!

Genetics, Evolution, and Statistical Analysis- Using Genetic Crosses to Analyze Stickleback Traits. HHMI FREE Lab with printouts for introducing basic statistics into a first year biology classroom (with Chi squared extension for advanced students)

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Great pictures of observable human traits, from the Genetic Science Learning Center. We did human traits, and creating a dog,

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