Category: NSE 1: Evolution Evidence (HS)

Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.

Inheritance & Variation of Traits, Inheritance 2: Genes and Growth (MS), Inheritance 2: Role of DNA (HS), Inheritance 5: DNA Technology (MS), Life Science, Natural Selection & Evolution, NSE 1: Evolution Evidence (HS), NSE 2: Evolution Factors (HS), NSE 2: Taxonomy (MS), NSE 3: Embryology (MS), S&F 1: Cells (MS), S&F 1: DNA to Proteins (HS), Structure and Function

Cas4-like Protein in Giant Viruses

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https://doi.org/10.1016/j.isci.2018.04.001 SUMMARY: Mimiviruses are giant viruses that co-evolved with eukaryotic hosts and virophages. Virophages are tiny viruses that hijack the viral factories giant viruses set up inside the host. Just as the eukaryotic host and virophages have evolved a sort of symbiotic relationship to defend against giant virus attacks, giant viruses have also evolved a… Continue reading Cas4-like Protein in Giant Viruses

Inheritance & Variation of Traits, Inheritance 1: Behavior and Reproduction (MS), Inheritance 2: Genes and Growth (MS), Inheritance 2: Role of DNA (HS), Inheritance 4: Population Genetics (HS), Inheritance 5: DNA Technology (MS), Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), IR 3: Ecosystem Stability (HS), Life Science, Natural Selection & Evolution, NSE 1: Evolution Evidence (HS), NSE 2: Evolution Factors (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

Amoebae, Giant Viruses, and Virophages

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https://doi.org/10.3389/fcimb.2017.00527 SUMMARY: In 2003, scientists discovered that giant viruses infected amoebas. These giant viruses are so big that they were mistaken for bacteria for the longest time. It wasn’t until scientists realized they contained no ribosomal DNA that these organisms were reclassified as viruses. From there, even more giant viruses were discovered. Some of the… Continue reading Amoebae, Giant Viruses, and Virophages

Chemical Reactions, CR 1: Determining Chemical Reactions (MS), CR 3: Evidence of Reactions (HS), CR 4: Driving Reactions (HS), HSus 4: Evaluating Solutions (HS), HSus 5: Showing Human Impact (HS), Human Sustainability, Inheritance & Variation of Traits, Inheritance 2: Genes and Growth (MS), Inheritance 2: Role of DNA (HS), Inheritance 3: Mutations (HS), Inheritance 3: Mutations (MS), Life Science, M&E 2: Anabolism/Catabolism (HS), Matter & Energy in Organisms/Ecosystems, Natural Selection & Evolution, NSE 1: Evolution Evidence (HS), NSE 2: Evolution Factors (HS), NSE 3: Trait Selection (HS), Physical Science, S&F 1: Cells (MS), Structure and Function

Using NAC Against Antibiotic Resistance Bacteria

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N-acetyl Cysteine Coated Gallium Particles Demonstrate High Potency against Pseudomonas aeruginosa PAO1 SUMMARY: Antibiotic resistant bacterial infections are on the rise, especially in hospitals. One of the culprits is the bacteria Pseudomonas aeruginosa (POA1). Researchers are quickly running out of antibiotics to use against resistant strains. The problem has reached the point where colistin, a… Continue reading Using NAC Against Antibiotic Resistance Bacteria

Life Science, Natural Selection & Evolution, Non-NGSS Articles, NSE 1: Evolution Evidence (HS), NSE 2: Evolution Factors (HS), NSE 5: Population Flux (HS)

Genetic Diversity in Laboratory Rodent Colonies

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Inbred or Outbred? Genetic Diversity in Laboratory Rodent Colonies SUMMARY: This study looked at genetic diversity in lab gerbils. Due to the fact that labs are small, animal groups tend to become less diverse overtime; however, the overall diversity of the gerbils can be determined if you outbreed them. The significance of inbred or outbred… Continue reading Genetic Diversity in Laboratory Rodent Colonies

Inheritance & Variation of Traits, Inheritance 1: Behavior and Reproduction (MS), Inheritance 1: Mitosis (HS), Inheritance 4: Population Genetics (HS), Interdependent Relationships in Ecosystems, IR 1: Ecosystem Interactions (MS), IR 2: Affecting Biodiversity (HS), Life Science, M&E 3: Food Webs (MS), M&E 5: Changing Ecosystems (MS), Matter & Energy in Organisms/Ecosystems, Natural Selection & Evolution, NSE 1: Evolution Evidence (HS), 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)

De novo origins of multicellularity in response to predation

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De novo origins of multicellularity in response to predation SUMMARY: Chlamydomonas are common, single-celled green algae that are flagellated and can move around. They’re a strange cross between plants and protists. In this study, scientists subjected chlamydomonas to predation by paramecia (common freshwater ciliates) and observed that after about 750 generations, the chlamydomonas took on… Continue reading De novo origins of multicellularity in response to predation

Inheritance & Variation of Traits, Inheritance 3: Mutations (HS), Inheritance 3: Mutations (MS), Life Science, M&E 2: Anabolism/Catabolism (HS), M&E 2: Metabolism (MS), Matter & Energy in Organisms/Ecosystems, Natural Selection & Evolution, NSE 1: Evolution Evidence (HS), NSE 2: Evolution Factors (HS), NSE 4: Adaption (HS), S&F 2: Cell Function (MS), S&F 4: Stimuli Response (MS), Structure and Function

All About Efflux Pumps

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Bacterial Multidrug Efflux Pumps: Much More Than Antibiotic Resistance Determinants SUMMARY: Efflux pumps are found in all organisms; they play an important role in helping the cells pump out toxins, heavy metals, and in the case of antibiotic resistant bacteria, antibiotics! This article talks about how efflux pumps work, other ways that they are used… Continue reading All About Efflux Pumps