Genetic Variation Biology Worksheet

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Genetic Variation Biology Worksheet

Nursing homework help

Dweebles: Genetic Variation

Name __________________________

Dweebles are small (probably) imaginary mammals. They have two arms and two legs. Their individual characteristics depend on their genotypes. They are diploid (two genes for each trait). The phenotype (what protein is expressed) depends on their genotype (the actual gene combination). Each parent dweeble is heterozygous (Aa) for each trait. You will determine the genotype of an offspring dweeble by flipping a coin. Heads equals a dominant (A) gene and tails equals a recessive (a) gene. You will need to flip the coin again to represent the gene passed down from each parent. In other words, two flips for each trait. 1. Determine the genotype for each trait for your dweeble. 2. Use the second table to figure out the phenotype. Trait Genotype: the actual Phenotype : how the gene combination. There gene is expressed, what should be two letters! the organism looks like Fur Color Fur Length Spots Eyes (number) Eyes (color) Eyebrows Fangs Fingers/Toes Claws Tail The phenotype depends on the genotype. Use this table to look up the phenotype for each trait for your dweeble. Trait Fur Color Fur Length Spots Number of Eyes Eye Color Eye Brow Fingers/Toes Claws Tail Fangs Genotypes AA Blue Long Black Two Purple One over each eye 4 yes Long Curly Two long Genotype Aa Red Long Orange Two Green One over each eye 4 yes Long Straight four short Genotype aa Yellow Short None One Red Unibrow (one eyebrow) 3 no Short, straight Two short 3. DRAW your dweeble! In color! What does your dweeble look like? Your dweeble will go on the wall in the classroom. Before we learn about punnett squares and how to determine the traits of offspring, we first need to understand the difference between genes and alleles, as well as the difference between genotypes and phenotypes. Definitions Gene: functional unit that controls inherited trait expression that is passed on from one generation to another generation. Allele: alternative form that a single gene may have for a particular trait. Genotype: An organism’s pairs of alleles. Phenotype: Observable characteristic that is expressed as a result of of an allele pair. Explanation Let’s use eye color for this explanation. Every human has a set of genes that code for the color of their eyes. The genes are different, though, among people who have different eye colors (and that’s why we call them alleles). Alleles come in pairs and can be dominant or recessive and it is the dominant alleles that are physically expressed (as the phenotype). Let’s compare blue and brown eyes in this example. Blue eyes will be represented by a lowercase “b”. Lowercase letters are ALWAYS used for recessive alleles. Brown eyes will be represented by an uppercase “B”. Uppercase letters are ALWAYS used for dominant alleles. In terms of just blue and brown eyes, a person can have three different combinations of alleles: BB, Bb, or bb. These are what we would call the genotypes. The phenotype would be what that person physically expresses (so in this case, their eye color) based on their genotype. What I mean is.. • The genotype BB codes for brown eyes (two dominant alleles). • In other words, genotype = BB, phenotype = brown. • The genotype Bb codes for brown eyes (one dominant allele, one recessive allele, but dominant will mask recessive). • In other words, genotype = Bb, phenotype = brown. • The genotype bb codes for blue eyes (two recessive alleles). • In other words, genotype = bb, phenotype = blue. If we know the genotype of two parents, we can use punnett squares to predict the genotype and phenotype of their offspring. In order to do that, though, we need to understand how to recognize genotypes and what they code for (what the phenotype would be). This is where the Dweebles assignment comes in. Here are the steps to completion.. 1. Download the Dweebles file (here) and port into Notability. 2. Grab a coin (any will do, just need heads and tails). 3. Read through the intro at the top and follow the directions. 1. The first part involves filling in the table of genotypes and phenotypes. Follow the directions and use the information at the bottom to match up the genotype and determine what the phenotype will be for each trait. 4. Add an extra page in Notability and draw a picture of your Dweeble based on its phenotypes! 5. Submit the completed assignment here. I would like to compile everyone’s Dweeble into a single PDF file and share it here. If you are not comfortable with this, please let me know. Questions? Come find me during a Zoom meeting or email me

  Excellent Good Fair Poor
Main Posting 45 (45%) – 50 (50%)

Answers all parts of the discussion question(s) expectations with reflective critical analysis and synthesis of knowledge gained from the course readings for the module and current credible sources.

 

Supported by at least three current, credible sources.

 

Written clearly and concisely with no grammatical or spelling errors and fully adheres to current APA manual writing rules and style.

40 (40%) – 44 (44%)

Responds to the discussion question(s) and is reflective with critical analysis and synthesis of knowledge gained from the course readings for the module.

 

At least 75% of post has exceptional depth and breadth.

 

Supported by at least three credible sources.

 

Written clearly and concisely with one or no grammatical or spelling errors and fully adheres to current APA manual writing rules and style.

35 (35%) – 39 (39%)

Responds to some of the discussion question(s).

 

One or two criteria are not addressed or are superficially addressed.

 

Is somewhat lacking reflection and critical analysis and synthesis.

 

Somewhat represents knowledge gained from the course readings for the module.

 

Post is cited with two credible sources.

 

Written somewhat concisely; may contain more than two spelling or grammatical errors.

 

Contains some APA formatting errors.

0 (0%) – 34 (34%)

Does not respond to the discussion question(s) adequately.

 

Lacks depth or superficially addresses criteria.

 

Lacks reflection and critical analysis and synthesis.

 

Does not represent knowledge gained from the course readings for the module.

 

Contains only one or no credible sources.

 

Not written clearly or concisely.

 

Contains more than two spelling or grammatical errors.

 

Does not adhere to current APA manual writing rules and style.

Main Post: Timeliness 10 (10%) – 10 (10%)

Posts main post by day 3.

0 (0%) – 0 (0%) 0 (0%) – 0 (0%) 0 (0%) – 0 (0%)

Does not post by day 3.

First Response 17 (17%) – 18 (18%)

Response exhibits synthesis, critical thinking, and application to practice settings.

 

Responds fully to questions posed by faculty.

 

Provides clear, concise opinions and ideas that are supported by at least two scholarly sources.

 

Demonstrates synthesis and understanding of learning objectives.

 

Communication is professional and respectful to colleagues.

 

Responses to faculty questions are fully answered, if posed.

 

Response is effectively written in standard, edited English.

15 (15%) – 16 (16%)

Response exhibits critical thinking and application to practice settings.

 

Communication is professional and respectful to colleagues.

 

Responses to faculty questions are answered, if posed.

 

Provides clear, concise opinions and ideas that are supported by two or more credible sources.

 

Response is effectively written in standard, edited English.

13 (13%) – 14 (14%)

Response is on topic and may have some depth.

 

Responses posted in the discussion may lack effective professional communication.

 

Responses to faculty questions are somewhat answered, if posed.

 

Response may lack clear, concise opinions and ideas, and a few or no credible sources are cited.

0 (0%) – 12 (12%)

Response may not be on topic and lacks depth.

 

Responses posted in the discussion lack effective professional communication.

 

Responses to faculty questions are missing.

 

No credible sources are cited.

Second Response 16 (16%) – 17 (17%)

Response exhibits synthesis, critical thinking, and application to practice settings.

 

Responds fully to questions posed by faculty.

 

Provides clear, concise opinions and ideas that are supported by at least two scholarly sources.

 

Demonstrates synthesis and understanding of learning objectives.

 

Communication is professional and respectful to colleagues.

 

Responses to faculty questions are fully answered, if posed.

 

Response is effectively written in standard, edited English.

14 (14%) – 15 (15%)

Response exhibits critical thinking and application to practice settings.

 

Communication is professional and respectful to colleagues.

 

Responses to faculty questions are answered, if posed.

 

Provides clear, concise opinions and ideas that are supported by two or more credible sources.

 

Response is effectively written in standard, edited English.

12 (12%) – 13 (13%)

Response is on topic and may have some depth.

 

Responses posted in the discussion may lack effective professional communication.

 

Responses to faculty questions are somewhat answered, if posed.

 

Response may lack clear, concise opinions and ideas, and a few or no credible sources are cited.

0 (0%) – 11 (11%)

Response may not be on topic and lacks depth.

 

Responses posted in the discussion lack effective professional communication.

 

Responses to faculty questions are missing.

 

No credible sources are cited.

Participation 5 (5%) – 5 (5%)

Meets requirements for participation by posting on three different days.

0 (0%) – 0 (0%) 0 (0%) – 0 (0%) 0 (0%) – 0 (0%)

Does not meet requirements for participation by posting on 3 different days.

Total Points: 100