Inheritance & Variation of Traits, Inheritance 2: Role of DNA (HS), Inheritance 4: Asexual/Sexual (MS), Inheritance 5: DNA Technology (MS), Life Science, Natural Selection & Evolution, Non-NGSS Articles, NSE 3: Trait Selection (HS), NSE 4: Adaption (HS), NSE 4: Fitness (MS), S&F 1: DNA to Proteins (HS), S&F 2: Cell Function (MS), Structure and Function

Anhydrobiosis without trehalose in bdelloid rotifers

Anhydrobiosis without trehalose in bdelloid rotifers SUMMARY: There are many types of organisms that can dry out, rehydrate, and then go about their lives with no problems. Many of the larger ones use trehalose or sucrose as an antifreeze. Bdelloid rotifers (tiny microscopic animals) do not. This study looked at the carbohydrate content in desiccated… Continue reading Anhydrobiosis without trehalose in bdelloid rotifers

Inheritance & Variation of Traits, Inheritance 1: Behavior and Reproduction (MS), Inheritance 2: Genes and Growth (MS), Inheritance 2: Role of DNA (HS), Inheritance 4: Asexual/Sexual (MS), Inheritance 4: Population Genetics (HS), Inheritance 5: DNA Technology (MS), Life Science

Sexual reproduction in parasitic protists

Sexual reproduction and genetic exchange in parasitic protists SUMMARY: Sexual reproduction is often murky in parasites because it’s difficult to observe at times. There are two other ways to determine if an organism has sex: differences in genomes and genes for meiosis. However, in parasites, there are exceptions to this rule in that some organisms… Continue reading Sexual reproduction in parasitic protists

Inheritance & Variation of Traits, Inheritance 1: Mitosis (HS), Inheritance 2: Genes and Growth (MS), Inheritance 2: Role of DNA (HS), Inheritance 4: Asexual/Sexual (MS), Life Science, M&E 1: Photosynthesis (HS), M&E 1: Photosynthesis (MS), Matter & Energy in Organisms/Ecosystems, S&F 1: Cells (MS), S&F 2: Cell Function (MS), Structure and Function

Chloroplast Division

Chloroplast Division SUMMARY: Chloroplast division in plants is still a fairly unknown topic when it comes to specific cellular/molecular mechanisms. This paper describes, step by step, all the proteins and enzymes involved in helping chloroplasts divide (FtsZ, Min system, ARC6, etc.) It also compares the division of chloroplasts to binary fission in various prokaryotes (FtsZ… Continue reading Chloroplast Division

Inheritance & Variation of Traits, Inheritance 2: Genes and Growth (MS), Inheritance 2: Role of DNA (HS), Inheritance 4: Asexual/Sexual (MS), Inheritance 5: DNA Technology (MS), Life Science

Meiotic Genes in Colpodean Ciliates Support Secretive Sexuality

Meiotic Genes in Colpodean Ciliates Support Secretive Sexuality SUMMARY: Researchers compared the genomes of two ciliates: one known to have sex, and another that has not been observed to have sex under laboratory conditions. Genes for meiosis were found in both classes of ciliates. Also, structures such as the micronuclei and macronuclei indicate that perhaps… Continue reading Meiotic Genes in Colpodean Ciliates Support Secretive Sexuality

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), Life Science, S&F 1: DNA to Proteins (HS), S&F 2: Body Systems (HS), S&F 3: Body Systems (MS), Structure and Function

Variation in the human immune system is largely driven by non-heritable influences

Variation in the human immune system is largely driven by non-heritable influences SUMMARY: This study was a twin study (identical twin). The researchers looked at different elements of the immune system: T-cells, NK cells, B-cells, cytokines, etc. and saw that the development of these cells were influenced by non-heritable factors such as the environment and… Continue reading Variation in the human immune system is largely driven by non-heritable influences

Inheritance & Variation of Traits, Inheritance 2: Genes and Growth (MS), Inheritance 2: Role of DNA (HS), Life Science, S&F 2: Body Systems (HS), S&F 3: Body Systems (MS), Structure and Function

Effects of Fat Loss on Inflammation

Substantial fat mass loss reduces low-grade inflammation and induces positive alteration in cardiometabolic factors in normal-weight individuals SUMMARY: This study looked at “normal weight female physique athletes” and how weight loss (specifically loss of visceral fat) decreased inflammation and increased enzymes that were beneficial for cardiovascular health. Results showed that weight loss upregulated genes that… Continue reading Effects of Fat Loss on Inflammation