BIO100 Maricopa Community Colleges gene and Allele Lab 7 Worksheet
Subject
Science
Course
BIO100
Question Description
Compose answers to the questions below and save the file as a backup copy in the event that a technical problem is encountered while attempting to submit the assignment. Make sure to run a spell check.
You will be submitting your answers to the lab assignment in two parts. The first part of the lab assignment consists of the laboratory exercise questions. The second part of the lab assignment is the application question. The first textbox on the submission page corresponds to the first part of the lab. Be sure to paste the laboratory exercise questions, with your answers, into this textbox. The second textbox on the submission page will be for your response to the application question.
LABORATORY EXERCISE QUESTIONS
Distinguish between the terms gene and allele. (1 point)
Give an example of one genetic trait (gene) and two different alleles (allele phenotypes) for that gene. (3 points)
Genetic Trait
Allele phenotype #1
Allele phenotype #2
Compare and contrast the terms phenotype and genotype. (4 points)
List the allele combinations (gamete possibilities) that can be formed by an individual with the following genotype: AABB (1 point)
List the different allele combinations (gamete possibilities) that can be formed by an individual with the following genotype: AaBb. (4 points)
Given: P = purple flowers and p = white flowers and P is dominant over p.
A horticulturist has a purple plant and a white plant. The horticulturist knows that purple is dominant over white. When they are bred, all of the resulting offspring are purple. What is the most likely genotype of the parent or original purple plant? (2 points)
A horticulturist runs a test cross with an offspring (F1 generation) purple plant from Question 8. The phenotypic frequencies of the resulting offspring are 50% white and 50% purple. What is the true genotype of this offspring (F1 generation) purple plant? (2 points)