Category: Inheritance 4: Population Genetics (HS)

Apply concepts of statistics and probability to explain the variation and distribution of expressed traits in a population.

Inheritance & Variation of Traits, Inheritance 2: Genes and Growth (MS), Inheritance 2: Role of DNA (HS), Inheritance 3: Mutations (HS), Inheritance 3: Mutations (MS), Inheritance 4: Population Genetics (HS), Life Science, Natural Selection & Evolution, NSE 2: Evolution Factors (HS), NSE 3: Trait Selection (HS), NSE 4: Adaption (HS), NSE 4: Fitness (MS), NSE 5: Natural Selection (MS), NSE 5: Population Flux (HS), S&F 1: Cells (MS), S&F 1: DNA to Proteins (HS), S&F 2: Cell Function (MS), Structure and Function

How Bacteria Genes Change with Dryness

GwynneL.

Environmental filtering of bacterial functional diversity along an aridity gradient SUMMARY: Genes of soil bacteria sampled in the Tibetan Plateau showed that as the environment got drier, the less diverse the genes were. Researchers wanted to compare bacterial gene diversity with the already-known diversity of genes in large animals in various environments. There were less… Continue reading How Bacteria Genes Change with Dryness

Inheritance & Variation of Traits, Inheritance 4: Asexual/Sexual (MS), Inheritance 4: Population Genetics (HS), Life Science, Natural Selection & Evolution, NSE 1: Evolution Evidence (HS), NSE 4: Adaption (HS), NSE 4: Fitness (MS), NSE 5: Natural Selection (MS)

Rotifers Eating Foreign DNA

GwynneL.

Evidence Supporting the Uptake and Genomic Incorporation of Environmental DNA in the “Ancient Asexual” Bdelloid Rotifer Philodina roseola SUMMARY: This study looked at whether bdelloid rotifers were better at taking in DNA compared to Monogononta rotifers. Bdelloids are a class of rotifers that only reproduce asexually. There has never been a male observed. Their cells… Continue reading Rotifers Eating Foreign DNA

Inheritance & Variation of Traits, Inheritance 1: Behavior and Reproduction (MS), Inheritance 2: Role of DNA (HS), Inheritance 3: Mutations (HS), Inheritance 3: Mutations (MS), Inheritance 4: Population Genetics (HS), Life Science

Cholera Biodiversity in Humans

GwynneL.

Vibrio Cholerae genomic diversity within and between patients SUMMARY: Researchers looked at 122 samples of cholera in 8 different cholera patients; five were from Bangladesh and three were from Haiti. They found that the cholera bacteria genomes were different in water versus the human gut; one particularly interesting mutation was that the bacteria stopped forming… Continue reading Cholera Biodiversity in Humans

Inheritance & Variation of Traits, Inheritance 1: Behavior and Reproduction (MS), Inheritance 4: Population Genetics (HS), Life Science

Hunters and Gatherers

GwynneL.

Sex differences in search and gathering skills (NOT OPEN ACCESS) SUMMARY: Three experiments were conducted to test the theory that women are better at men when it came to finding things. This theory is based on the archeological evidence that shows women were gatherers and men were hunters. The experiments showed the opposite: men were… Continue reading Hunters and Gatherers