Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 11.4, Problem 2TC
Summary Introduction
To explain:
Whether the genes for seed color and seed shape will assort independently if they are present on the same chromosome.
Introduction:
Independent assortment is the process of separation of genes located on different chromosomes during the process of crossing-over in recombination. It occurs during the metaphase stage of meiosis-
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Students have asked these similar questions
If the genes for seed color and seed shape were on the same chromosome rather than on different chromosomes, would their alleles assort independently? Why or why not?
By conducting testcrosses, researchers have found that the sweetpea has seven linkage groups. How many chromosomes would youexpect to find in leaf cells of the plants?
In corn, a pair of genes determines leaf shape and another pair determines pollen shape. A ragged-leafed plant with round-pollen was crossed to a ragged-leaf plant with angular pollen, and the resultant progeny were classified as follows:
186 ragged-leaf round-pollen
174 ragged-leaf angular pollen
57 smooth-leaf round pollen
63 smooth-leaf angular-pollen
provide your hypothesis of the genotypes for the two parents.
According to your hypothesis, what numbers would you have expected for each of the four classes of progeny? Follow the format of the number with the phenotypes in the question above.
Test your hypothesis statistically using the chi-square method and indicate whether you accept or reject your hypothesis. Show your solutions.
Chapter 11 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 11.1 - describe the relationships among chromosomes, DNA,...Ch. 11.1 - Prob. 2CYLCh. 11.2 - distinguish between self-fertilization and...Ch. 11.2 - Prob. 2CYLCh. 11.3 - Sudden Death on the court Many traits, in humans...Ch. 11.3 - describe the pattern of inheritance of a trait...Ch. 11.3 - Prob. 1TCCh. 11.3 - Prob. 2CYLCh. 11.3 - Prob. 3CYLCh. 11.4 - Prob. 1CYL
Ch. 11.4 - Prob. 1TCCh. 11.4 - Prob. 2CYLCh. 11.4 - Prob. 2TCCh. 11.4 - Prob. 3CYLCh. 11.5 - Prob. 1CSCCh. 11.5 - Prob. 1CYLCh. 11.5 - Prob. 1HYEWCh. 11.5 - Prob. 1TCCh. 11.5 - explain how polygenic inheritance and...Ch. 11.6 - describe how the patterns of inheritance differ...Ch. 11.7 - Prob. 1CYLCh. 11.7 - explain why most sex-linked traits are controlled...Ch. 11.7 - describe the pattern of inheritance of sex-linked...Ch. 11.8 - Prob. 1CSRCh. 11.8 - use pedigrees to determine the pattern of...Ch. 11.8 - Prob. 1ETCh. 11.8 - Prob. 1TCCh. 11.8 - Prob. 2CYLCh. 11.8 - Prob. 2ETCh. 11 - Prob. 1ACCh. 11 - An organism is described as Rr, with red coloring....Ch. 11 - In certain cattle, hair color can be red...Ch. 11 - Prob. 1MCCh. 11 - Define the following terms: gene, allele,...Ch. 11 - Prob. 2ACCh. 11 - Prob. 2FIBCh. 11 - Prob. 2GPCh. 11 - Prob. 2MCCh. 11 - Prob. 2RQCh. 11 - Prob. 3FIBCh. 11 - Prob. 3GPCh. 11 - Prob. 3MCCh. 11 - Prob. 3RQCh. 11 - Genes that are present on one sex chromosome but...Ch. 11 - Prob. 4GPCh. 11 - Prob. 4MCCh. 11 - Prob. 4RQCh. 11 - Prob. 5FIBCh. 11 - Prob. 5GPCh. 11 - Prob. 5MCCh. 11 - Prob. 5RQCh. 11 - Prob. 6GPCh. 11 - Prob. 6RQCh. 11 - In the couple described in Problem 6, the woman...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- We say that genes that are close together on the same chromosome are linked. What does that mean? Imagine that in a diploid nucleus, one chromosome has the allele R and right next to it on the same chromosome is the allele T for a different gene. Are these linked? Imagine that r is right next to t on the homologous chromosome. If this cell never undergoes meiosis, does this matter at all? If it does undergo meiosis, what are the two genotypes that the gametes are most likely to have? Look at Figure for help if you need it.arrow_forwardLet’s say you are studying stem length in tulips. This trait determined by a number of polygenes. If there are nine phenotypic categories, how many genes are involved in tulip stem length?arrow_forwardSuppose you have an AAaa tetraploid plant and it undergoes self-fertilization. At least two copies of thedominant allele A are needed to obtain the dominantphenotype. At what frequency will progeny with thedominant phenotype appear?arrow_forward
- Suppose you have an AAaa tetraploid plant and it undergo self- fertilization. At least two copies of the dominant allele A are needed to obtain the dominant phenotype. At what frequency will progeny with the dominant phenotype appear?arrow_forwardCertain varieties of chrysanthemums contain 18, 36, 54, 72, and 90 chromosomes; all are multiples of a basic set of nine chromosomes. How would you describe these varieties genetically? What feature do the karyotypes of each variety share? A variety with 27 chromosomes has been discovered, but it is sterile. Why?arrow_forwardA plant believed to be heterozygous for a pair of alleles B/b (where B encodes yellow and b encodes bronze) was selfed, and, in the progeny, there were 280 yellow and 120 bronze plants. Do these results support the hypothesis that the plant is B/b?arrow_forward
- Assume that the genes for seed color and seed shape are located on the same chromosome. A plant heterozygous for both genes is testcrossed wrinkled green with the following results: green, wrinkled 645 green, round 36 yellow, wrinkled 29 yellow, round 590 What were the genotypes of the parents, and how far apart are these genes?arrow_forwardIn Brinjal eggplants, purple fruit is incompletely dominant to white fruit, with the heterozygote being light violet. What is/are the genotype(s) of: the megaspore mother cell of a plant with purple flowers? the polar nucleus of a plant with light violet flowers? the megasporocyte of a plant with white flowers? the companion cell of a plant with light violet flowers?arrow_forwardWhat phenotypic proportions would be expected if the genes for red eyes and for white-banded wings were located on different chromosomes?arrow_forward
- Let us suppose that two plants are crossed (mated). One plant (female) is homozygous dominant and produces chlorophyll, and the other (male) is homozygous recessive and does not produce chlorophyll. These two plants are considered the parental, or P generation. What would be the possible genotypes and phenotypes of these two individuals? Fill in the table below with the parental generation's descriptional information. Table 6.1 Female Male Description Parental Generation Homozygous dominant P Generation Genotype gg Phenotype Greenarrow_forwardImagine you are given two tall plants, but you do not know their genotype (see Figure 16-12). There are three possibilities—they might both be TT or both Tt or one TT and the other Tt. Imagine you cross the two plants, wait for them to produce seeds, and then plant the seeds. If all resulting plants are tall, can you then determine what the genotypes of the two parents are? If approximately half the resulting plants are tall and about half are short, can you then figure out the genotypes of the parents?arrow_forwardA student observes corn to analyze the outcome of two genes-- The Red gene (R or r) where purple (R) is dominant to yellow (r) and the Sugar gene (S or s) where smooth (S) is dominant to wrinkled (s). The student predicts the parent’s genotypes are RrSs and rrss. How many possible gametes would be formed by each parent? Parent 1 would have 2 gamete combinations and Parent 2 would have 2 gamete combinations Parent 1 would have 4 gamete combinations and Parent 2 would have 2 gamete combination Parent 1 would have 4 gamete combinations and Parent 2 would have 1 gamete combination Parent 1 would have 4 gamete combinations and Parent 2 would have 4 gamete combinationarrow_forward
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