Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 16.6, Problem 2C
- • CONNECT To be expressed, an autosomal recessive genetic disease must be homozygous. What relationship does this fact have to consanguineous matings?
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Biology
Q 1: The following monohybrid cross is made: GG x gg (the parental generation). G (green seeds) is completely dominant to g (orange seeds). Along with this parental cross write out the F1 and the F2 generations. Indicate the genotypic and phenotypic ratios in each generation.
(note: don't just give the ratio; for instance instead of writing just 1:1, write1 green: 1 orange or 1:1 green:orange.
Wedow et al. (2018) found that genes which predispose an individual towards gay sex:
improve reproductive success in female siblings.
are related to a higher number of heterosexual partners in the same individual
are not a viable reproductive strategy
are on the X gene
Q.why are there so few Y-linked traits in humans?
Chapter 16 Solutions
Biology (MindTap Course List)
Ch. 16.1 - Distinguish between karyotyping and pedigree...Ch. 16.1 - Prob. 2LOCh. 16.1 - Prob. 3LOCh. 16.1 - Prob. 1CCh. 16.1 - Prob. 2CCh. 16.1 - Describe two ways in which genome database...Ch. 16.1 - Prob. 4CCh. 16.2 - Explain how nondisjunction in meiosis is...Ch. 16.2 - Distinguish among the following structural...Ch. 16.2 - Prob. 6LO
Ch. 16.2 - VISUALIZE Draw a simple sketch illustrating how...Ch. 16.2 - Prob. 2CCh. 16.2 - Prob. 3CCh. 16.2 - Prob. 4CCh. 16.3 - State whether each of the following genetic...Ch. 16.3 - Which of the following genetic diseases is/are...Ch. 16.3 - Prob. 2CCh. 16.3 - Prob. 3CCh. 16.4 - Briefly discuss the process of gene therapy,...Ch. 16.4 - Prob. 1CCh. 16.5 - State the relative advantages and disadvantages of...Ch. 16.5 - Distinguish between genetic screening programs for...Ch. 16.5 - Prob. 1CCh. 16.5 - Prob. 2CCh. 16.6 - Prob. 11LOCh. 16.6 - Prob. 1CCh. 16.6 - CONNECT To be expressed, an autosomal recessive...Ch. 16.6 - Prob. 3CCh. 16 - Prob. 1TYUCh. 16 - An abnormality in which there is one more or one...Ch. 16 - The failure of chromosomes to separate normally...Ch. 16 - Prob. 4TYUCh. 16 - Prob. 5TYUCh. 16 - Prob. 6TYUCh. 16 - Prob. 7TYUCh. 16 - Prob. 8TYUCh. 16 - Examine the following pedigrees. Which is the most...Ch. 16 - Examine the following pedigrees. Which is the most...Ch. 16 - Prob. 11TYUCh. 16 - SCIENCE, TECHNOLOGY, AND SOCIETY Imagine that you...Ch. 16 - A common belief about human genetics is that an...Ch. 16 - Prob. 14TYUCh. 16 - EVOLUTION LINK Explain some of the evolutionary...
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- Q.3 Genetics vocabulary: dominant and recessivearrow_forwardElaborate on the importance of mitotic and meiotic divisions in the transmission of traits.arrow_forwardFruit weight is controlled by 4 gene pairs. The homozygous dominant weights 200 g while the homozygous recessive weighs 80 g. Assume that the alleles have equal contribution and have cumulative effects. The F1 and F2 of the two parents below were studied. Parent 1 Parent 2 B1B1B2B2B3B3b4b4 x b1b1b2b2b3b3B4B4 Provide the genotype and phenotype of the F1.arrow_forward
- 7. discuss the role environment plays on phenotypesarrow_forwardFruit weight is controlled by 4 gene pairs. The homozygous dominant weighs 200 g while thehomozygous recessive weighs 80 g. Assume that the alleles have equal contribution and havecumulative effects. The F1 and F2 of the two parents below were studied. Parent 1 Parent 2B1B1B2B2B3B3b4b4 x b1b1b2b2b3b3B4B4 a. Compute for the contribution of the dominant allele.b. Compute for the fruit weight of parental 1 and parental 2.c. Provide the genotype and phenotype of the F1.d. Compute for the frequencies of the different individuals in the F2.e. Provide the phenotypes of the F2 and their frequencies.arrow_forwardDiscuss the role of the environment with regard to anindividual’s traitsarrow_forward
- 3) How are you able to determine the genotype of a parent if you only know the phenotype of both parents and the offspring? Give an example. 4) What is the purpose of crossing a true breeding dominant organism with an organism expressing a dominant phenotype? What will you learn?arrow_forwardActivity 9GENES SEGREGATION BY BEAN-O TYPE Materials: Colored beans to represent the gene for a certain trait of garden pea. (60 pieces of the same size and shape; 30 pieces of which are of different colors from rest) Procedures: 1. Place the 30 pieces beans (one color) to one container and the other 30 pieces to the other container. Assign which color of beans will represent dominant and recessive genes of a specific trait of garden pea 2. Label the paper container as First Parent P1, male and other P1 female 3. At random, segregate the beans on the Lab table. Assume fertilization occurs and First filial generations (F1) are formed 4. Categorize the formed First filial generations 5. Put all the beans in one container. Assume that all the first filial generations undergo self-fertilization 6. Pick up the beans by two from the container without looking at it and collect the second Filial generation (F2) 7. Categorize the formed Second filial generations into two (2) phenotype, and…arrow_forwardACTIVITY 3: Incomplete dominance vs. codominance Coat color in dragons is controlled by 2 alleles. A black dragon is crossed with a white dragon and all of the offspring are gray. Are the alleles incompletely dominant or codominant? ___ Explain (how do you know)? What would offspring of the other type probably look like? __arrow_forward
- Q5. Create a scratch simulation model that describes sex determination in humans at random. Remember xx is a girl and xy isarrow_forwardWhich situation is not an example of a prezygotic barrier? Two species of turtles breed at different times of the year Two species of flowers attract different pollinators Two species of birds display different mating dances Two species of insects produce infertile offspring.arrow_forwardBuild the family tree 1 A couple in which the vision of both is normal, has four children. In them and in their descendants the following characteristics are appreciated: to. A daughter with normal vision, who has a normal son and a color blind son and daughter b. An ija with normal vision, who has three normal daughters and two daughters c. A colorblind son, with two normal daughters d. A normal son, with two normal sons and two daughters Analyze the transmission behavior of color blindness, who transmits the disease, for which gene X or Y, is this condition responsible? 2. A woman has curly hair and her husband has straight hair. When they find out that they are going to have a child, they wonder what his hair will be like. Her mother argues that she will have it straight because her father (grandfather) had straight hair. The husband replies that he should have it curly because both of his parents had curly hair. Knowing that it is an autosomal character, determine: to. Family tree…arrow_forward
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