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sister-group

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Journal Articles
The American Biology Teacher (2020) 82 (6): 372–380.
Published: 01 August 2020
...). ( B ) Modifications to histone tails render chromatin into open/closed conformation. ( C ) DNMT enzyme catalyzes the transfer of the methyl group to the cytosine in CpG di-nucleotides, leading to DNA methylation. DNA methylation results in condensed chromatin leading to transcription inactivation...
Includes: Supplementary data
Journal Articles
The American Biology Teacher (2020) 82 (2): 81–84.
Published: 01 February 2020
...Randy Moore Just before his death in 1970, John Scopes claimed that his famous trial “had no other effect upon my family” than his sister Lela losing her teaching job in Paducah, Kentucky. He was wrong. My interviews with John Scopes's family members and descendants – most of whom have never talked...
Journal Articles
The American Biology Teacher (2019) 81 (9): 610–617.
Published: 01 December 2019
... chromosomes pair with each other, sometimes swapping sections, and then are segregated to separate daughter cells by the spindle apparatus. HS-M 1.3 In Meiosis II, the sister chromatids are segregated to separate daughter cells. HS-M 2 Meiosis produces four haploid daughter cells, each with half of...
Journal Articles
The American Biology Teacher (2019) 81 (6): 417–422.
Published: 01 August 2019
... groups and using their prior understanding of seasons and climates, students are able to construct a physical representation of their mental models similar to that shown in Figure 2 . The “more diversity begets more diversity in the tropics” hypothesis (a “circular” or tautological argument...
Includes: Supplementary data
Journal Articles
The American Biology Teacher (2019) 81 (2): 98–109.
Published: 01 February 2019
... replicated chromosomes (sister chromatids) aligned? The 2 students role playing centrosomes will “rope” the sister chromatids and pull them apart to opposite poles of the cell. As a group, count how many chromosomes are present in the daughter cells. Before you begin modeling, consider a...
Includes: Supplementary data
Journal Articles
The American Biology Teacher (2019) 81 (1): 32–39.
Published: 01 January 2019
... evolution [ME]) of the observed branching patterns. All Three Trees NJ & ML NJ & ME ML & ME Similarities FV3s group as sister taxa with CMTV–2 ECV–1 and ESV–1 and ESV–2 form a multifurcating branch ATV–1 and ATV–2 are on separate clades CGSV–1 and CGSV–2 group...
Journal Articles
The American Biology Teacher (2018) 80 (4): 278–284.
Published: 01 April 2018
... as the sister group to Mollusca ( Kocot et al., 2011 ). It should be noted that in Table 1 some classes (e.g., Bivalvia) are represented by more than one species. The purpose of this is to reinforce the concepts of “sister taxa” and monophyly by having students observe the bifurcating branches that...
Journal Articles
The American Biology Teacher (2018) 80 (4): 256–262.
Published: 01 April 2018
... class provides background information regarding what led scientists to recognize that DNA was the molecule of heredity. Students watch a documentary video that includes interviews with some of the surviving protagonists. Students (working in groups) are then asked to debate Franklin's role to refine...
Journal Articles
The American Biology Teacher (2018) 80 (2): 144–151.
Published: 01 February 2018
... of the relationships by circling shared characteristics that are distinct from the outgroup (synapomorphies), a tree fern ( Figure 4C ). We encourage them to start building their phylogenetic hypothesis by looking for sister species. Then, we provide students with an alignment of the first 21...
Journal Articles
The American Biology Teacher (2018) 80 (1): 2–5.
Published: 01 January 2018
... activities to assess understanding of the material; and (3) in-class, group problem sets related to the molecular pathogenesis of CF. Although originally designed for an introductory undergraduate cell biology course, this curriculum can be easily adapted for upper-level undergraduate and high school...
Journal Articles
The American Biology Teacher (2017) 79 (9): 787–791.
Published: 01 November 2017
... Students’ Perceptions of Interactive Biology Instruction............................8:621-RL Testing Common Misconceptions about the Nature of Human Racial Variation............................7:538-RL Using Iterative Group Presentations in an Introductory Biology Course to Enhance Student...
Journal Articles
The American Biology Teacher (2017) 79 (7): 544–551.
Published: 01 September 2017
... potential problem with this approach is that it may artificially group together dragons with the same type of breath weapon in a way that renders other synapomorphies (such as the pointed tongue of metallic dragons) as homoplasies instead. It would be worthwhile to discuss with the students how this leads...
Journal Articles
The American Biology Teacher (2017) 79 (6): 482–491.
Published: 01 August 2017
... ( bottom ) that were passed out to groups. Figure 3. The instructions (top) and the scaffold sheet (bottom) that were passed out to groups. Figure 4. Model extension exercise. Figure 4. Model extension exercise. Figure 5. Example of a group's model and the feedback given. Figure 5...
Journal Articles
The American Biology Teacher (2017) 79 (4): 305–308.
Published: 01 April 2017
... crossing over among them. The model will help students to understand how homologous chromosomes occur and how crossing over is realized between homologous chromosomes whose chromatids are not sisters. The developed model is found to be an effective tool in teaching crossing over...
Journal Articles
The American Biology Teacher (2016) 78 (9): 755–763.
Published: 01 November 2016
... indicate the relative number of how many Nurse Bee Points (larva symbol) and Forager Bee Points (honey dipper symbol) each bee will contribute to the Brood and Honey Scores, respectively. Figure 1. The QuickRules document guides each group of students, showing ( a ) conditions for winning the game...
Journal Articles
The American Biology Teacher (2016) 78 (8): 644–650.
Published: 01 October 2016
... Otto is so strong and the love that they feel for each other is as strong…as a love between two humans. My little sister Sidney has such a big heart, and animals are naturally drawn to her. As I read Sophie and Otto's story, I am constantly relating it to Sidney.” Content question: How did the...
Journal Articles
The American Biology Teacher (2016) 78 (7): 608–612.
Published: 01 September 2016
... project for evolution units at varying levels, including AP Biology. Phylogenetics is the study of the evolutionary relatedness between different groups of organisms ( Nei & Kumar, 2000 ). These groups can be at small scales (e.g., mammals) or large scales (e.g., different domains of life). The...
Journal Articles
The American Biology Teacher (2016) 78 (5): 380–384.
Published: 01 May 2016
... age, there is no way to know whether a particular fossil could have been ancestral to any other taxon. In cladistics, fossils are not afforded any special prestige on account of their antiquity and are treated the same as any other taxon. On a cladogram, fossils appear as sister groups to other extant...
Journal Articles
The American Biology Teacher (2016) 78 (5): 376–379.
Published: 01 May 2016
... natural world – with things for which there is evidence, things that can be seen and measured, things that people of good will can agree upon. Religion discusses different questions that are also very important. How do you get along with your parents? How do you get along with your brothers and sisters...
Journal Articles
The American Biology Teacher (2016) 78 (4): 351–354.
Published: 01 April 2016
... relationship is both positive and negative, even to the use of the word goat in our language. For example, a “scapegoat” is the person who ends up taking the blame for others’ misdeeds; koza (“nanny-goat”) in Russian is a term for a “tomboy.” The author separates the goats into three groups – wild...