Tag: meiosis

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

GwynneL.

Sexual reproduction and genetic exchange in parasitic protists SUMMARY: Sexual reproduction is often murky in parasites because it’s difficult to observe. 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 may have… 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

GwynneL.

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

GwynneL.

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: Mitosis (HS), Inheritance 4: Asexual/Sexual (MS), Life Science

Rotifer Reproduction Mechanism

GwynneL.

Genetic exchange among bdelloid rotifers is more likely due to horizontal gene transfer than to meiotic sex SUMMARY: This study looked at the conclusion drawn by another study that said bdelloid rotifers used a type of meiosis similar to that found in a genus of plants called Oenothera [1]. Five hundred seventy-six rotifers of the… Continue reading Rotifer Reproduction Mechanism