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pleiotropy

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Journal Articles
The American Biology Teacher (2017) 79 (2): 95–101.
Published: 01 February 2017
... without eyes are at an advantage in this environment where energy sources (food) are scarce, because blind fish do not waste energy on these useless structures. A second hypothesis employs the phenomenon of pleiotropy, that is, cases in which multiple phenotypic effects are caused by the same mutation...
Journal Articles
The American Biology Teacher (2012) 74 (2): 111–113.
Published: 01 February 2012
... from gray wolf by genetic analysis ( Vilà, 1997 ) Page 86: "natural selection will ensure that modifications consequent on other modifications at a different period of life shall not be in the least degree injurious…" Antagonistic pleiotropy model states that a trait that is detrimental late...
Journal Articles
The American Biology Teacher (2018) 80 (2): 140–142.
Published: 01 February 2018
.... Please direct all requests for permission to photocopy or reproduce article content through the University of California Press's Reprints and Permissions web page, www.ucpress.edu/journals.php?p=reprints . 2018 polymorphisms polygenes pleiotropy Much opportunity exists for future careers...
Journal Articles
The American Biology Teacher (1980) 42 (4): 238–239.
Published: 01 April 1980
... either in the garden or the pea. These genes illustratethe greenhouse. economic importance of major genes, the phenotypicexpressionof genes at the anatomicallevel, and pleiotropy (multiplephenotypicex- Technique for Examining the InnerPod Wall pressionsof a singlegene). In addi- Phloroglucinol,a stain...
Journal Articles
The American Biology Teacher (2016) 78 (6): 512–514.
Published: 01 August 2016
... – 45 . Answer list: Codominance Dominant negative Epistasis Lethality Incomplete dominance Maternal effect Mitochondrial inheritance Pleiotropy Sex-linked (or X-linked) trait The C allele leads people to drive Corvettes, and the V allele of the same gene leads people...
Journal Articles
The American Biology Teacher (2017) 79 (1): 71.
Published: 01 January 2017
... for tameness in wild foxes, some of which, by the sixth generation, demonstrated the desire for human companionship. The selection for this trait of tameness resulted in the selection of other traits, such as floppy ears, curled tails, and different hair colors. This is an example of “pleiotropy,” in which one...
Journal Articles
The American Biology Teacher (1992) 54 (1): 29–32.
Published: 01 January 1992
.... The domestic cat also exhibitsmany of the more complex genetic concepts such as epistasis and pleiotropy as studied by AP biology students and undergraduatecollege students. In trying to make the subject of genetics more personal and meaningful, I developed a simple lab on the genetics of the domestic cat...
Journal Articles
The American Biology Teacher (2011) 73 (7): 382–387.
Published: 01 September 2011
... independently even though they are on the same chromosome. Note: "Gray Seed Coat" and "Violet-red Flowers" refer to the a locus, the same locus as Purple Flowers. This is an example of pleiotropy. The A allele results in purple (red-violet) flowers and gray seed coat, whereas the a allele results in white...
Journal Articles
The American Biology Teacher (1964) 26 (6): 445–450.
Published: 01 October 1964
..., pteridines, and pleiotropy. 24. Comparingpteridinesfrom eye onlv, body only,andwholebody of Drosophilamelanogaster. The groups were expected to work together on the gatheringof dataand to freely swap informationand suggestions,but each individualwas to write up data and conclusions for each experiment...
Journal Articles
The American Biology Teacher (2010) 72 (1): 6.
Published: 01 January 2010
... alleles, multiple loci, limited dominance, and pleiotropy. Such activities can make the study of genetics very rich and very realistic. Finally, it should be evident that the five areas I have outlined above are not mutually exclusive. The more areas that can be addressed simultaneously, the better. I...
Journal Articles
The American Biology Teacher (1994) 56 (3): 188.
Published: 01 March 1994
... to the principle of dominance. A Punnett square illustrates with color combination for a flower. Chromosomestructureis studied to show that not all genes segregate independently. Similarly,certain traits are linked by the proximity of their genes on chromosomes. Polygenic inheritance and pleiotropy are mentioned...
Journal Articles
The American Biology Teacher (1987) 49 (4): 258.
Published: 01 April 1987
..., such as evolutionary stable strategies, should be explained in more detail. Recent developments in molecular biology probably contradict some behavioral genetics conclusions. A few terms (allele, pleiotropy, variance) are undefined, and redundancy is high. More photographs and diagrams that explain points wouldI...
Journal Articles
The American Biology Teacher (1987) 49 (4): 258.
Published: 01 April 1987
..., such as evolutionary stable strategies, should be explained in more detail. Recent developments in molecular biology probably contradict some behavioral genetics conclusions. A few terms (allele, pleiotropy, variance) are undefined, and redundancy is high. More photographs and diagrams that explain points wouldI...
Journal Articles
The American Biology Teacher (2012) 74 (1): 15–19.
Published: 01 January 2012
... traits, sex-linked traits, penetrance, dosage compensation, Barr bodies, pleiotropy, founder effect, aneuploidies, environmental interactions, allele polymorphisms, heterozygote advantage, and the outcomes and ethics of genetic screening. These are all concepts that parents-to-be may need to know...
Journal Articles
The American Biology Teacher (1994) 56 (3): 188–189.
Published: 01 March 1994
... on chromosomes. Polygenic inheritance and pleiotropy are mentioned near the conclusionof Part Two. A brief mention of the Human Genome Projectand its protentialfor the study of human genetics concludes the tape. The video is packaged in a threering binder with accompanying supplementalprinted materials.The...
Journal Articles
The American Biology Teacher (1987) 49 (4): 258–259.
Published: 01 April 1987
..., such as evolutionary stable strategies, should be explained in more detail. Recent developments in molecular biology probably contradict some behavioral genetics conclusions. A few terms (allele, pleiotropy, variance) are undefined, and redundancy is high. More photographs and diagrams that explain points wouldI...
Journal Articles
The American Biology Teacher (2013) 75 (9): 641–649.
Published: 01 November 2013
... distractions (e.g., various complexities in trait determination such as pleiotropy), especially given the amount of material, become instead naturally integrated and more easily understood. Moreover, students become interested and start asking the questions themselves: “How do dominant alleles come about? What...
Journal Articles
The American Biology Teacher (2014) 76 (1): 53–56.
Published: 01 January 2014
.... They then answer a set of questions designed to test their understanding of the various interallelic and intergenic relationships. The reptilobird has some traits that are controlled by Mendelian patterns, and others that show epistasis, pleiotropy, and sex linkage. These traits can be modified depending...
Journal Articles
The American Biology Teacher (1978) 40 (2): 105–107.
Published: 01 February 1978
.... Biol. 50:1. WILSON, E. 0. 1973. The queerness of social evolution. Bull. Ent. Soc. Amer. 19:20. . 1975. Sociobiology: The new synthesis. Cambridge, Massachusetts:HarvardUniversityPress. WILLIAMS,G. C. 1957. Pleiotropy, natural selection, and the evolution of senescence. Evol. 11:398. . 1966. Adaptation...
Journal Articles
The American Biology Teacher (2008) 70 (2): 117–119.
Published: 01 February 2008
... wasimportanthistoricallyin understandinghemoglobinand protein structurea, s well as the evolutionaryconsequencesof pleiotropy(Howe,2007). From Anomalous to Pathological The growingdesirein the 1600s to understandmonsters, along with other wondersand "preternaturapl"henomena, helped motivate the growth of modern...