Essentials of Biology (5th International Edition)
5th Edition
ISBN: 9781259660269
Author: Sylvia S. Mader, Dr., Michael Windelspecht
Publisher: Mcgraw-Hill
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Chapter 10.1, Problem 3CYP
Solve the following (using Figure 10.6): What is the probability that a cross between two individuals with a TtGg genotype will produce a short plant with green pods?
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In corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the male part of corn plants (i.e. the tassel) unable to produce fertile pollen; the female parts, however, remain receptive to pollination by pollen from male-fertile corn plants. However, the presence of a nuclear fertility restorer gene F restores fertility to male-sterile lines.
Using the following color-coded circles, simulate the crosses indicated below. Put the illustrations of crosses in the spaces provided. Be sure to include in the labels the genotypes and phenotypes of the offspring in each cross.
Big light green circle - male-sterile cytoplasm
Big orange circle - male-fertile cytoplasm
Small orange circle - FF nucleus
Small half-light green-half-orange circle - Ff nucleus
Small light-green circle - ff nucleus
The allele G for yellow stigma is completely dominant to green (g). Supposing
two strains of autotetraploid plants are available and their genotypes are as follows:
GGgg – in this plant the gene is close to the centromere
Gggg – in this plant the gene is far from the centromere
If these two plants are crossed:
a) provide the gametes that can be obtained from the two plants;
b) provide the genotypic and phenotypic ratios of the offspring.
Assume that the trihybrid cross AABBrr x aabbRR is made in a plant species. Assume that A and B are dominant alleles, but there is no dominance effect of alleles at the R locus.
a) How many different gametes are possible in the F1generation? What are the genotypes of these gametes?
b) What is the probability of the parental aabbRR genotype in the F2 progeny?
c) What proportion of the F2 progeny would be expected to be homozygous for all three genes?
Chapter 10 Solutions
Essentials of Biology (5th International Edition)
Ch. 10.1 - Prob. 1LOCh. 10.1 - Prob. 2LOCh. 10.1 - Distinguish between dominant and recessive traits.Ch. 10.1 - Apply Mendel`s laws to solve and interpret...Ch. 10.1 - Recognize and explain the relationship between...Ch. 10.1 - Summarize what Mendel`s experiments explained...Ch. 10.1 - Compare the phenotypic and genotypic ratios of a...Ch. 10.1 - Solve the following (using Figure 10.6): What is...Ch. 10.1 - Prob. 4CYPCh. 10.1 - Prob. 1A
Ch. 10.1 - Prob. 2ACh. 10.1 - Prob. 3ACh. 10.1 - Prob. 4ACh. 10.2 - Prob. 1LOCh. 10.2 - Prob. 2LOCh. 10.2 - List some common genetic disorders, state the...Ch. 10.2 - Prob. 1CYPCh. 10.2 - Prob. 2CYPCh. 10.2 - Prob. 3CYPCh. 10.2 - Prob. 5ACh. 10.2 - Prob. 6ACh. 10.2 - Prob. 7ACh. 10.2 - Prob. 8ACh. 10.2 - Prob. 9ACh. 10.2 - Prob. 10ACh. 10.2 - Prob. 11ACh. 10.3 - Understand how incomplete dominance and...Ch. 10.3 - Prob. 2LOCh. 10.3 - Prob. 3LOCh. 10.3 - Prob. 4LOCh. 10.3 - Prob. 1CYPCh. 10.3 - Prob. 2CYPCh. 10.3 - Prob. 3CYPCh. 10.3 - Explain how gene linkage and gene interactions...Ch. 10.3 - Prob. 12ACh. 10.3 - Prob. 13ACh. 10.3 - Prob. 14ACh. 10.4 - Prob. 1LOCh. 10.4 - Prob. 2LOCh. 10.4 - Prob. 3LOCh. 10.4 - Prob. 1CYPCh. 10.4 - Prob. 2CYPCh. 10.4 - Prob. 3CYPCh. 10.4 - Prob. 15ACh. 10 - 1. How does the collection of chromosomes we...Ch. 10 - Prob. 2BYBCh. 10 - How does meiosis help predict the probability of...Ch. 10 - Prob. S3.2BYBCh. 10 - Prob. S8.2BYBCh. 10 - Prob. S9.2BYBCh. 10 - Prob. 1TCCh. 10 - Prob. 2TCCh. 10 - Technology that can separate X-bearing and...
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