Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 13, Problem 3SQ
Summary Introduction
Concept Introduction: Independent assortment is one of the laws proposed by Mendel. Mendel proposed the law of independent assortment based on the results of dihybrid cross that “alleles at one locus tend to assort into gametes independently of alleles at other loci”.
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A heterozygous individual has_____ for a trait being studied. a. the same allele on both homologous chromosomes b. two different alleles of a gene c. a haploid condition, in genetic terms
Homologs are_______
Select one:
a. two alleles
b. two genes on the same chromosome
c. the same chromosome
d. two chromosomes
Independent assortment means thata. two genes tend to be inherited together.b. which allele of a gene is included in a gamete has noeffect on which allele of a second gene is included in thesame gamete.c. which allele of a gene is included in a gametedetermines which allele of a second gene is included inthe same gamete.d. homologous chromosomes do not separate during meiosis.
Chapter 13 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 13 - A heterozygous individual has a _______ for a...Ch. 13 - An organisms observable traits constitute its...Ch. 13 - Prob. 3SQCh. 13 - The second-generation offspring of a cross between...Ch. 13 - Prob. 5SQCh. 13 - Refer to question 5. Assuming complete dominance,...Ch. 13 - Prob. 7SQCh. 13 - Prob. 8SQCh. 13 - The probability of a crossover occurring between...Ch. 13 - True or false? All traits are inherited in a...
Ch. 13 - Prob. 11SQCh. 13 - The phenotype of individuals heterozygous for...Ch. 13 - Prob. 13SQCh. 13 - Match the terms with the best description. ______...Ch. 13 - Assuming that independent assortment occurs during...Ch. 13 - Refer to problem 2. Determine the predicted...Ch. 13 - Refer to problem 2. Assume a third gene has...Ch. 13 - Prob. 4GPCh. 13 - Suppose you identify a new gene in mice. One of...Ch. 13 - Mendel crossed a true-breeding pea plant with...Ch. 13 - Several alleles affect traits of roses, such as...Ch. 13 - Prob. 1DAACh. 13 - Prob. 2DAACh. 13 - Prob. 3DAACh. 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...Ch. 13 - A single allele gives rise to the Hbs form of...
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- ___i___ sex chromosome is present in male Drosophila and ___ii___ sex chromosome is found in female Drosophila. This statement is completed by the information in row ______. Row i ii A. XY XX B. XX XO C. XO XX D. XX XYarrow_forwardThe phenotype of individuals heterozygous for_____ alleles comprises both homozygous phenotypes. a. epistatic c. pleiotropic b. codominant d. hybridarrow_forwardA pea plant has the genotype TtRr. The independent assortmentof these two genes occurs at ________ because chromosomescarrying the ________ alleles line up independently of the chromosomes carrying the ________ alleles.a. metaphase of meiosis I, T and t, R and rb. metaphase of meiosis I, T and R, t and rc. metaphase of meiosis II, T and t, R and rd. metaphase of meiosis II, T and R, t and rarrow_forward
- In humans, Cystic Fibrosis an autosomal recessive trait, currently with medicine advances people affected by this disease can live until the 40s and 50s even. A couple in which the mother is a known carrier for this disease plans to have 4 children with a man who is not affected either but had his father who had the disease. A) Please state the genotypes of the parents. Use C to denote the dominant allele and c as the recessive B) Determine the probability that the first 2 children born have Cystic Fibrosis and the 2 last children are not affected. C) In general, what proportion of the children are expected to be female carriers of Cystic Fibrosis trait?arrow_forwardThe F1 flies described in question 1 were mated with brown-eyed flies from a true-breeding line. What phenotypes would you expect the offspring to have? (a) all with red eyes (b) all with brown eyes (c) half with red eyes and half with brown eyes (d) red-eyed females and brown-eyed males (e) brown-eyed females and red-eyed malesarrow_forwardA condition in which both alleles of a heterozygous condition are expressed as a blending of traits is ______. a incomplete dominance b sex-linked c transformation d crossing overarrow_forward
- Which of the following events or processes can result in Patau syndrome, Turner Syndrome, or Klinefelter syndrome?a. nondisjunctionb. deletion of part of a chromosomec. crossing-overd. independent assortmentarrow_forwardSTUDY GUIDE Name a A HUMAN TRAITS In your textbook, read about color blindness in Section 27:2. 1. Color blindness is a trait carried on the sex chromosomes. Let C be normal color vision and c b red-green color blindness. Use the diagrams to answer the questions. a. What is the sex of each of these people? Write either male or female on the blank below each. XX XX X Xa XX C b. Which are red-green color blind? c. Which have normal color vision? X X XXXXX B ①① X X XXXXX M a XaXa Date a d. Which has normal color vision even with the gene for color blindness? 2. a. Complete the following Punnett squares. The first one has been done for you. b. Using these colors, shade the following parts of the Punnett squares. Blue-normal females Yellow-normal males Red-color blind females Green-color blind males X X XXXXX Class D CHAPTER 27 X X XXXXX a Xalo E X X X×××× X oooolgolma 8 X X XXXXX a X a Xa 15 1arrow_forwardGenetics (Study of genes) O a. All the other choices are valid O b. Our traits can be controlled by one or more genes O c. It is the study of the mode of transmission of genes from one generation to the next. O d. There are in general two copies of each gene called alleles in every diploid cell, with one allele on each homologous chromosome. If you get blue-black upon adding IKI to a substance, then this substance is a protein or a polypeptide O a. True O b. Falsearrow_forward
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