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offspring

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Journal Articles
The American Biology Teacher. 2011; 734232–237 doi: https://doi.org/10.1525/abt.2011.73.4.9
Published: 01 April 2011
... fitness parameters, such as development time and offspring number. Table 1. Overview of possible inquiry activities with flour beetles, depending on the students' grade level. Grade Inquiry Method Parameters To Be Investigated Evaluation Activity Content Standards K–4 Observation...
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The results of initial <b>offspring</b> collection (A) and removal of <b>offspring</b> lo...
Published: 01 February 2015
Figure 1. The results of initial offspring collection (A) and removal of offspring lost by selection (B). Photos by authors. Figure 1. The results of initial offspring collection (A) and removal of offspring lost by selection (B). Photos by authors. Figure 1. The results of initial offspring collection (A) and removal of offspring lost by selection (B). Photos by authors. Figure 1. The results of initial offspring collection (A) and removal of offspring lost by selection (B). Photos by authors. More
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Sample student three-dimensional model of <b>offspring</b> dinosaur created with p...
Published: 01 February 2016
Figure 8. Sample student three-dimensional model of offspring dinosaur created with papier-mâché. Figure 8. Sample student three-dimensional model of offspring dinosaur created with papier-mâché. Figure 8. Sample student three-dimensional model of offspring dinosaur created with papier-mâché. Figure 8. Sample student three-dimensional model of offspring dinosaur created with papier-mâché. More
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When true-breeding Cooties from the east and west are mated, the <b>offspring</b> ...
Published: 01 March 2014
Figure 2. When true-breeding Cooties from the east and west are mated, the offspring receive one trait factor from each of the parents. The first-generation offspring present only the Eastern Cootie’s traits. Figure 2. When true-breeding Cooties from the east and west are mated, the offspring Figure 2. When true-breeding Cooties from the east and west are mated, the offspring receive one trait factor from each of the parents. The first-generation offspring present only the Eastern Cootie’s traits. Figure 2. When true-breeding Cooties from the east and west are mated, the offspring More
Journal Articles
The American Biology Teacher. 2020; 822114–119 doi: https://doi.org/10.1525/abt.2020.82.2.114
Published: 01 February 2020
... genetics of the virtual organisms, and track offspring in real time. We have demonstrated, by using pretest and posttest questionnaires, that students gained a deeper understanding of evolutionary concepts by using this software. In particular, students showed the greatest increase in their ability to...
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Number of <b>offspring</b> according to treatment (mean ± SE) (Tribolium picture ©...
Published: 01 April 2011
Figure 3. Number of offspring according to treatment (mean ± SE) (Tribolium picture © Alex Wild). Figure 3. Number of offspring according to treatment (mean ± SE) (Tribolium picture © Alex Wild). Figure 3. Number of offspring according to treatment (mean ± SE) (Tribolium picture © Alex Wild). Figure 3. Number of offspring according to treatment (mean ± SE) (Tribolium picture © Alex Wild). More
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Number of <b>offspring</b> plotted versus the size category (0 5 very small, 4 5 b...
Published: 01 April 2011
Figure 5. Number of offspring plotted versus the size category (0 5 very small, 4 5 big). In this graph, it becomes obvious that because of high variability, the use of several replicates within every treatment is necessary to fulfill the standards of an experiment. Beetles feeding on +Y+Y Figure 5. Number of offspring plotted versus the size category (0 5 very small, 4 5 big). In this graph, it becomes obvious that because of high variability, the use of several replicates within every treatment is necessary to fulfill the standards of an experiment. Beetles feeding on +Y+Y More
Journal Articles
The American Biology Teacher. 2019; 812110–114 doi: https://doi.org/10.1525/abt.2019.81.2.110
Published: 01 February 2019
... make pancakes (representing offspring) with various ingredients (illustrating genetic diversity and allelic variation), other students (representing the environment) judge the pancakes on the basis of taste. Only the highest-ranking pancakes are made in a second generation (illustrating population...
Journal Articles
The American Biology Teacher. 2018; 802140–142 doi: https://doi.org/10.1525/abt.2018.80.2.140
Published: 01 February 2018
... for this individual and determine the phenotype of their offspring. The randomness generated by the coin and dice mechanics illustrates the principles of independent assortment and segregation, variable gene expression, and environmental effects. © 2018 National...
Journal Articles
The American Biology Teacher. 2016; 785410–416 doi: https://doi.org/10.1525/abt.2016.78.5.410
Published: 01 May 2016
... a 21-day reproductive study of D. magna exposed to varying concentrations of the pesticide fenoxycarb. Students will observe an altered reproduction rate and increased production of males under conditions that would typically result only in the production of female offspring. This research system...
Journal Articles
The American Biology Teacher. 2013; 752128 doi: https://doi.org/10.1525/abt.2013.75.2.10
Published: 01 February 2013
... does not pass on the results of surgery to one’s offspring. The prevalence of this misconception is therefore an opportunity to discuss Lamarckian inheritance in the classroom. © 2013 by National Association of Biology Teachers. All rights reserved. Request permission to photocopy or reproduce...
Journal Articles
The American Biology Teacher. 2020; 822104–112 doi: https://doi.org/10.1525/abt.2020.82.2.104
Published: 01 February 2020
... offspring. When students “reproduce,” they toss a coin to determine which of their two alleles they pass down to their offspring (one coin toss per offspring). If the parent flips a coin heads up, then the offspring will receive the allele on the top-left side of the parent's sheet of paper; if the coin...
Journal Articles
The American Biology Teacher. 2020; 82158–59 doi: https://doi.org/10.1525/abt.2020.82.1.58b
Published: 01 January 2020
... variety of responses. They have heard of genes and may be aware that they are found in cells and involved in the passage of traits from parents to offspring. They might even say a gene has DNA that carries such traits as skin and eye color, height, diseases, and a person's sex. And some may have ideas...
Journal Articles
The American Biology Teacher. 2019; 819626–635 doi: https://doi.org/10.1525/abt.2019.81.9.626
Published: 01 December 2019
... about heredity, however, tend to be challenging for learners of all ages (e.g., Ronald, 2011 ; Elmesky, 2013 ; Anderson et al., 2014 ), including elementary students ( Venville & Donovan, 2008 ; Cisterna et al., 2013 ; Ibourk et al., 2017 ). They may struggle to explain how offspring traits...
Journal Articles
The American Biology Teacher. 2011; 73286–89 doi: https://doi.org/10.1525/abt.2011.73.2.6
Published: 01 February 2011
...William D. Stansfield Most biology texts villify Lamarck's concept of “inheritance of acquired characters” and leave the impression that all acquired characters are never transmitted to offspring. However, recent research indicates that this is not true! Some “acquired” traits are inherited. I...
Includes: Supplementary data
Journal Articles
The American Biology Teacher. 2019; 819665–667 doi: https://doi.org/10.1525/abt.2019.81.9.665
Published: 01 December 2019
... frequencies of generation X in generation X + 1. In some instances, this is due in part to random survival of individuals in generation X, whereas other instances are influenced by the fact that not all combinations of alleles are realized (e.g., a pair of heterozygotes produce a homozygous offspring). If the...
Journal Articles
The American Biology Teacher. 2019; 819610–617 doi: https://doi.org/10.1525/abt.2019.81.9.610
Published: 01 December 2019
... the chromosome number of the parent cell; this process allows offspring to have the same number of chromosomes as their parents. a HS = high school; M = meiosis. Effective teaching is not telling students the correct answers to questions but guiding students to seek answers through...
Journal Articles
The American Biology Teacher. 2019; 818533 doi: https://doi.org/10.1525/abt.2019.81.8.533
Published: 01 October 2019
... answer was natural selection. The characteristics of individuals who have more offspring than others become more common over the generations. This explains why kidneys, hearts, eyes, and brains are so astoundingly well suited to their purposes. As physicians, we constantly confront a very different...
Journal Articles
The American Biology Teacher. 2019; 818599–604 doi: https://doi.org/10.1525/abt.2019.81.8.599
Published: 01 October 2019
... based. Proteins that help regulate cell processes will be encoded by genes. And those genes may mutate. Further, a mutational change in the germ line may be passed on to the next generation. When that happens, a pattern variant (even if rare) may well be shared by different offspring of the same parent...
Journal Articles
The American Biology Teacher. 2019; 817474–478 doi: https://doi.org/10.1525/abt.2019.81.7.474
Published: 01 September 2019
... complex relations to other organic beings and to external nature, will tend to the preservation of that individual and will generally be inherited by its offspring. The offspring also will have a better chance of surviving. ( Darwin, 2007 [1859] , p. 40) The next time we meet in lab, I'll lead you...