Hairy's Inheritance: Getting a Handle on Variation (1998)

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Written in 1998 for teachers, this is background information and description were developed to support the design and implementation ofÂ a selective breedingÂ investigation to increase the number of hairs (trichomes) on Fast Plants leaf margins. The investigation described includesÂ three levelsÂ of possible implementation, each withÂ increasing complexity. Newer resources about selectively breeding Fast Plants to increase or decrease trichomesÂ are available; however, this resources still offers valuable perspectives from the Fast Plants Program's early work with this trait.

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Alternate Title	Selectively breeding for trichome frequency (hairiness)
Subject	Science -- Agriculture Science -- Biological and life sciences
Species	Brassica rapa
Phenotypic Trait	Standard
Media Format	Downloadable docs Text/HTML
Materials Development Era	Classic (pre-2000)
Resource Type	Instructional Material (NSDL Type Vocabulary) Instructional Material -- Activity (NSDL Type Vocabulary) Instructional Material -- Experiment/Lab Activity (NSDL Type Vocabulary) Reference Material (NSDL Type Vocabulary)
Language	English
Audience	Educator Professional/Practitioner
Education Level	High School Higher Education
Creator	Wisconsin Fast Plants Program
Contributor	Lauffer, Daniel W. Wisconsin Fast Plants Program
Publisher	Wisconsin Fast Plants Program
Rights	Attribution-ShareAlike 2.5
Date Issued	1998-07-21
Date Last Modified	2022-04-19 15:05:26
Classification	Educational Resources Educational Resources -- Grade Level: Secondary Educational Resources -- Grade Level: Undergraduate Educational Resources -- Grade Level: Undergraduate -- Classic Undergraduate Level Resources (developed before the year 2000) Educational Resources -- Grade Level: Secondary -- Classic Secondary Resources (developed before the year 2000)
NGSS Standard	NGSS.HS.LS4.3 Apply concepts of statistics and probability to support explanations that organisms with an advantageous heritable trait tend to increase in proportion to organisms lacking this trait. [Clarification Statement: Emphasis is on analyzing shifts in numerical distribution of traits and using these shifts as evidence to support explanations.] [Assessment Boundary: Assessment is limited to basic statistical and graphical analysis. Assessment does not include allele frequency calculations.] NGSS.HS.LS4.4 Construct an explanation based on evidence for how natural selection leads to adaptation of populations. [Clarification Statement: Emphasis is on using data to provide evidence for how specific biotic and abiotic differences in ecosystems (such as ranges of seasonal temperature, long-term climate change, acidity, light, geographic barriers, or evolution of other organisms) contribute to a change in gene frequency over time, leading to adaptation of populations.] NGSS.MS.LS4.4 Construct an explanation based on evidence that describes how genetic variations of traits in a population increase some individualsÃ¢â‚¬â„¢ probability of surviving and reproducing in a specific environment. [Clarification Statement: Emphasis is on using simple probability statements and proportional reasoning to construct explanations.] NGSS.MS.LS4.6 Use mathematical representations to support explanations of how natural selection may lead to increases and decreases of specific traits in populations over time. [Clarification Statement: Emphasis is on using mathematical models, probability statements, and proportional reasoning to support explanations of trends in changes to populations over time.] [Assessment Boundary: Assessment does not include Hardy Weinberg calculations.]

Date Record Checked: 2019-04-01 07:49:32

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