Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 13, Problem 2GP
Assuming that independent assortment occurs during meiosis, what type(s) of gametes will form in individuals with the following genotypes?
- a. AABB
- b. AaBB
- c. Aabb
- d. AaBb
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During the process of Meiosis an individual's alleles for each trait are independently sorted to make unique gametes.
A person is heterozygous for the Freckles phenotype (Ff) and also heterozygous for the PTC-tasting phenotype (Tt).
This person's genotype for these two traits is represented as FfTt.
A) How many unique gametes could be produced by this individual if you consider these two traits?
B) List the different allele combinations that could result.
Which of the following is a TRUE statement regarding the outcome of meiosis?
A.
In meiosis, one diploid cell (2n) can produce 2 haploid cells in males (1n).
B.
In meiosis, four haploid cells (1n) can produce 2 diploid cells (2n) in males.
C.
In meiosis, one diploid cell (2n) can produce up to 4 haploid cells (1n) in males.
D.
In meiosis, one diploid cell (2n) can produce 2 diploid cells (2n) in females.
The stages of meiosis where independent assortment occurs and crossing over begins, respectively, are
Select one:
a. Metaphase I and prophase II
b. Metaphase II and prophase I
c. Metaphase I and prophase I
d. Metaphase I and II and prophase I and II
Chapter 13 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 13 - Prob. 1DAACh. 13 - Prob. 2DAACh. 13 - Prob. 3DAACh. 13 - Prob. 1SQCh. 13 - An organisms observable traits constitute its...Ch. 13 - Prob. 3SQCh. 13 - Prob. 4SQCh. 13 - The offspring of the cross AA aa are ________. a....Ch. 13 - Refer to question 5. Assuming complete dominance,...Ch. 13 - A testcross is a way to determine ________. a....
Ch. 13 - Assuming complete dominance, a cross between...Ch. 13 - The probability of a crossover occurring between...Ch. 13 - True or false? All traits are inherited in a...Ch. 13 - One gene that affects three traits is an example...Ch. 13 - The phenotype of individuals heterozygous for...Ch. 13 - _______ in a trait is indicated by a bell curve....Ch. 13 - Match the terms with the best description. ______...Ch. 13 - Mendel crossed a true-breeding pea plant with...Ch. 13 - Assuming that independent assortment occurs during...Ch. 13 - Refer to problem 2. Determine the predicted...Ch. 13 - For each genotype listed, what allele combinations...Ch. 13 - Prob. 5GPCh. 13 - Suppose you identify a new gene in mice. One of...Ch. 13 - Mutations in the TYR gene may render its enzyme...Ch. 13 - In sweet pea plants, an allele for purple flowers....Ch. 13 - Red-flowering snapdragons are homozygous for...
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- Considering only the five genes A, B, C, D, and E, how many genetically distinct gametes (i.e. gametes withdifferent genotypes) could be produced through independent assortment by an individual with the genotypeAABbCcDDEe? a. 4b. 8c. 16d. 64arrow_forwardAssuming that independent assortment occurs during meiosis, what type(s) of gametes will form in individuals with the following genotypes? AABB AaBB Aabb AaBbarrow_forwardNon disjunction occurs when chromosomes fail to separate during meiosis, resulting in an abnormal number of chromosomes in the gametes. Assume an animal species has a diploid number of 4. Describe and/or show what the normal gametes would be like, and what would result from non disjunction in meiosis one, and what would result from non disjunction in meiosis two. You may use a drawing as part of your answer, but a drawing alone is not sufficient.arrow_forward
- If a diploid organism has 14 chromosomes (2n=14) a. How many chromosomes will its gametes have? b. After meiosis I during gamete formation, how many chromosomes are in each daughter cell? c. After meiosis I during gamete formation, how many chromatids are in each daughter cell?arrow_forward1)Discusses why Meiosis I is referred to as reduction division and why Meiosis II is essentially like Mitosis. 2)Discusses where problems are likely to occur in Meiosis and what these problems could lead to.arrow_forwardThree genes (A, B, and C) are found on three different chromosomes. For the following diploid genotypes, describe all of thepossible gamete combinations.A. Aa Bb Cc C. Aa BB CcB. AA Bb CC D. Aa bb ccarrow_forward
- Draw a simple sketch illustrating how nondisjunction in meiosis can lead to Down syndrome.arrow_forwardHow many different types of gametes could be produced by an individual of genotype (remember your simple multiplication regarding potential outcomes for EACH gene): a. aaBbCcDdEeffGG b. AabbCcDdeeFF c. aaBBccDDarrow_forwardWhich case of nondisjunction is MOST likely to result in the production of an aneuploid cell? A. nondisjunction in meiosis I because two of the resulting cells will be n+1 and two will be n–1 B. nondisjunction in meiosis I because two of the resulting cells will be n; one will be n+1 and one will be n–1 C. nondisjunction in meiosis II because two of the resulting cells will be n+1 and two will be n–1 D. nondisjunction in meiosis II because all four resulting cells will be n; one will be n+1 and one will be n–1arrow_forward
- How many types of gametes can be produced from the following diploids? Show the gametes. A. AaBB B. AaBb C. AABBarrow_forwardA man who is color blind and has hemophilia and a woman who is neither color blind nor a hemophiliac have a daughter with triple X syndrome (XXX) who has hemophilia and is color blind. Where did the nondisjunction occur? Group of answer choices a. Paternal meiosis II only b. Maternal meiosis II or paternal meiosis I c. Maternal meiosis I or paternal meiosis II d. Paternal meiosis II or maternal meiosis II e. Maternal meiosis II only (b is not the right answer)arrow_forwardAssume that one of Merida's sons, who is heterozygous for orange hair color, married a girl that was also heterozygous. Create a Punnett square to show the possibilities that would result if they had children. a. List the possible genotypes and phenotypes for their children. b. What are the chances of a child with orange hair? c. What are the chantes of a child with yellow?arrow_forward
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