I need help with both 7 and 8 7. Joe does not have a bent little finger but his parents do.a. Assuming that one gene completely controls this trait, how is the trait inherited(dominant, recessive)? Explain how you know.Mitosis and Meiosisb. Using "B" and "b" to symbolize alleles, what is Joe's genotype?c. If Joe's children have bent little fingers, what are the possible genotypes of Joe'swife?8. Henry has hair on the back of his hand. Let us assume that hair on the back of the hands isdominant to hairless hands.a. Could both of his parents have had hair on the backs of their hands?b. Could both of his parents have had NO hair on the backs of their hands?Explain your answers.C.linlrod puoblam in which the gene encoding the trait is on the X

Dominant trait can be expressed in a homozygous or hetreozygous condition whereas recessive trait…

7. Joe does not have a bent little finger but his parents do. a. Assuming that one gene completely controls this trait, how is the trait inherited (dominant, recessive)? Explain how you know. 9. Mitosis and Meiosis b. Using "B" and "b" to symbolize alleles, what is Joe's genotype? c. If Joe's children have bent little fingers, what are the possible genotypes of Joe's wife?

7. Joe does not have a bent little finger but his parents do. a. Assuming that one gene completely controls this trait, how is the trait inherited (dominant, recessive)? Explain how you know. 9. Mitosis and Meiosis b. Using "B" and "b" to symbolize alleles, what is Joe's genotype? c. If Joe's children have bent little fingers, what are the possible genotypes of Joe's wife?

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter12: Mendel, Genes, And Inheritance

Section: Chapter Questions

Problem 3TYK

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1. An albino man whose parents are both normal marries a woman one whose parents is normal and the other albino. She has an albino sister. The couple has a normal son. a. Is albinism a dominant or a recessive trait? Explain your answer. b.Give genotypes of all the persons involved. c. The couple plans to have more kids. What is the probability of their second child being normal?
1. A woman is colorblind. Construct a Punnett square and using versions of the letter “C” determine if she marries a man with normal vision: What are the chances her sons will be colorblind? What are the chances her daughters will be colorblind? What are the chances of having a carrier daughter? 2. Both the husband and wife have normal vision. Their son is colorblind. What can you conclude about the father’s genotype? What about the mother’s genotype? Father: Mother: 3. If a young girl has fragile X syndrome, a recessive trait (f), what is her genotype? What are the possible genotypes of her father and mother? Mother: _________ or __________ Father: _________________ If her brother also developed this condition, which parent (father, mother, or both) contributed a disease allele? Explain your answer as well as constructing Punnett squares to support your answer. 4. Both the mother and father of a hemophiliac son have normal blood clotting. What are the genotypes of the…
7. The ability to roll your tongue (R) is dominant to lack of this ability (r). A. What is the genotype of a man who can roll his tongue if his father couldn’t? B. If a man who is heterozygous for tongue rolling marries a woman who is heterozygous, what would you predict for the genotypes and phenotypes of their children?
8. Huntington’s disease is a degenerative disease of the nervous system that strikes in middle age. The allele that causes the disease (H) is dominant to the allele that results in the normal condition (h). Answer the following questions about the inheritance of this disease. A. What is the genotype of a man who is normal but whose father had Huntington’s disease? B. What is the genotype of a woman who has Huntington’s disease if both of her parents had Huntington’s disease? C. If a man who is heterozygous for Huntington’s disease marries a woman who is normal, what would you expect for the genotypes and phenotypes of their children? D. If a normal man marries a woman who is homozygous for Huntington’s disease, what do you expect for the genotypes and phenotypes of their children?
2. Can a color-blind female have a son that has normal vision? Color blindness is caused by a sex-linked recessive allele. Explain. Do the Punnett square. *use N = normal vision and n = color blind over X and Y chromosomes. 3. Muscular dystrophy is a sex-linked trait. What parental genotypes could produce a female with=muscular dystrophy? Do the Punnett square. *use M = normal muscles, and m = muscles missing dystrophin protein over X and Y chromosomes. 4. In humans, red-green color-blindness is due to a recessive gene X^c. Normal vision results from the dominant gene X^c. If a homozygous woman of normal vision marries a color-blind man, what type of vision will be expected in their children?
1. If one parent is homozygous dominant for a trait, that parent's genotype might be GG. If the other parent is homozygous recessive for the same trait, that parent's genotype would be gg. What are the possible genotypes of their offspring? b. How many different phenotypes might we possibly see in their offspring? 2. If a male is homozygous dominant for a trait, that parent's genotype might be DD. If the female is heterozygous for the same trait, her genotype would be Dd. a. How many genetically different sperm can the male produce? b. Using a Punnett square, determine the expected genotypic ratios of their offspring. What are the expected phenotypic ratios? 3. In garden peas, the gene for red flowers (R) is dominant over the gene for white flowers (r). If pollen (cells containing sperm nuclei) from the anther (male reproductive organ) of a homozygous red-flowered plant is added to the pistil (female reproductive organ containing the egg) of a white- flowered plant: a. c. What would be…
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13. A dominant x-linked allele (B) gives normal color vision but the recessive allele (b) causes red-green color blindness.A. What is the genotype of a man with normal color vision whose father was color- blind? B. What is the genotype of a woman with normal color vision whose father was color-blind? C. If a woman who is colorblind marries a man with normal vision, what would you expect for the genotypes and phenotypes of their children? D. If a man is color-blind, which parent did he inherit the gene from? Explain your answer. E. Which parent does a man get all his x-linked genes from? F. If a woman is color-blind, what do you know about the genotypes and phenotypes of her parents? G. Are men more likely than women to get a genetic disease which is x-linked and dominant? Are they more likely to get a disease that is x-linked and recessive? Explain your answers. H. Can a man with normal color vision have a colorblind daughter? Explain your answer.…
7. Assume that one of Squidward's sons, who is heterozygous for the light blue body 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 light blue skin? C. What are the chances of a child with light green skin?
8.Roberts Syndrome is an extremely rare genetic disorder that is characterized by mild to severe prenatal retardation or disruption of cell division, leading to malformation of the bones in the skull, face, arms, and legs. Shown below is a pedigree for a family with Roberts Syndrome. Based on this pedigree Roberts Syndrome is inherited as a(n) trait? A || A B D E F G II A A.sex-linked dominant B.autosomal recessive C.autosomal dominant D.sex-linked recessive
Part B 1. For the remaining characteristics, you will be looking at homozygous and heterozygous traits. Each trait will be determined to be homozygous recessive, homozygous dominant, or hetero- zygous. Letters representing the alleles will be given to you; the uppercase letter is always dominant and the lowercase letter is always recessive. If both dice rolled are even numbers, it indicates homozygous dominant alleles; if both are odd, it indicates homozygous recessive alleles; if one is odd and the other even, it indicates heterozygous alleles. 2. Eyebrows: Use the alleles "A" and "a" for this trait. Two separate brows are the dominant trait, whereas the unibrow (or one continuous brow) is recessive. 3. Eye shape: Use the alleles "R" and "r" for this trait. Round eyes are the dominant trait; almond shaped eyes are recessive. 4. Hitchhiker's thumb: Use the alleles "H" and "h" for this trait. Straight thumbs are dominant; Hitchhiker's thumbs (the curving upward of the thumb) are…