Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. In humans, albinism is a recessively determined trait. One form of hereditary deafness is also a recessive trait. Show the cross of a man who is heterozygous for skin pigmentation and heterozygous for hereditary deafness with a woman who is albino and deaf. Show the expected phenotype ratio of the offspring.

Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. In humans, albinism is a recessively determined trait. One form of hereditary deafness is also a recessive trait. Show the cross of a man who is heterozygous for skin pigmentation and heterozygous for hereditary deafness with a woman who is albino and deaf. Show the expected phenotype ratio of the offspring.

Name: I. Perform the indicated single-gene and two-gene crosses. Show all wo
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Description: I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter19: Introduction To Genetics

Section: Chapter Questions

Problem 4CT: The young woman shown at right has albinismvery pale skin, white hair, and pale blue eyes. This...

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I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. One form of red-green color blindness is an X-linked recessive trait. A heterozygote woman has children with a normal man. What is the percentage chance that they will have a child with color blindness?
I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. In snapdragon plants, the alleles for flower color show incomplete dominance. First show a cross of two parents, one with red flowers and the other with white flowers. Then show a cross of two of the F1 plants to get the F2 generation. Indicate the genotype ratio and phenotype ratio for both the F1 and F2 generations.
I. Perform the indicated single-gene and two-gene crosses. Show all work. Show all Punnett squares. List the gene or genes involved, list and define all allele symbols, and indicate the genotypes of the individuals you are crossing above the Punnett square. Answer questions that ask for a ratio as a ratio and questions that ask for a percent as a percent. In humans, the allele for widow’s peak hairline is dominant to the allele for straight hairline. A woman with widow’s peak who is heterozygous marries a man with straight hairline and they decide to have children. Show the expected genotype ratio and phenotype ratio of the offspring. In snapdragon plants, the alleles for flower color show incomplete dominance. First show a cross of two parents, one with red flowers and the other with white flowers. Then show a cross of two of the F1 plants to get the F2 generation. Indicate the genotype ratio and phenotype ratio for both the F1 and F2 generations. A man with AB blood type…
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…
Name: Genetic Crosses that Involve 2 Traits In rabbits, black hair is dominant to brown hair. Also in rabbits, long straight ears are dominant to floppy ears. These letters represent the genotypes and phenotypes of the rabbits: BB = black hair EE = long ears Ee = long ears ee = floppy ears Bb = black hair bb = brown 1. A male rabbit with the genotype BBee is crossed with a female rabbit with the genotype bbEe The square is set up below. Fill it out and determine the phenotypes and proportions in the offspring. How many out of 16 have black hair Be Be Be Be and long ears? How many out of 16 have black hair bE and floppy ears? be How many out of 16 have brown hair and long ears? bE How many out of 16 have brown hair be and floppy ears? 2. Show the cross: GgBb x ggBb How many out of 16 have black hair and long ears? How many out of 16 have black hair and floppy ears? How many out of 16 have brown hair and long ears? How many out of 16 have brown hair and floppy ears?
I. White eye cross White eye color is a recessive trait found on the X chromosome. Also called Sex-linked. This is called sex-linked. Gene symbols Xw White eye color X normal red eye color Y it’s a boy The parents were White eye color female XwXw and red eye color male XY Diagram of P1 cross: You are crossing XwY and XXw (figure out the phenotype) Diagram of F1 cross: Give expected F2 phenotypic ratio: Give expected F2 genotypic ratio:
B. Considering the Mendelian traits round versus wrinkled and yellow versus green, consider the crosses below and determine the genotypes of the parental plants by analyzing the phenotypes of their offspring. Parental Plants Offspring 1. round, yellow x round, yellow 3/4 round, yellow 1/4 wrinkled, yellow 2. wrinkled, yellow x round, yellow 6/16 wrinkled, yellow 2/16 wrinkled, green 6/16 round, yellow 2/16 round, green 3. round, yellow x round, yellow 9/16 round, yellow 3/16 round, green 3/16 wrinkled, yellow 1/16 wrinkled, green round, yellow * wrinkled, green 1/4 round, yellow 1/4 round, green 1/4 wrinkled, yellow 1/4 wrinkled, green
Directions: Use the following information to answer the questions below: all are sex-linked recessive disorders. H= normal blood clotting C=Normal Vision h-hemophilia muscular dystrophy M= Normal c= colorblind 1. Write the genotypes for the following individuals: a. female with no family history of hemophilia b. male with hemophilia c. male with muscular dystrophy d. male with normal color vision e. normal color vision female with colorblind father f. male with normal blood clotting g. colorblind male m= 2. Cross a female who is a carrier of the gene for hemophilia with a man who has normal blood clotting. Tell the expected phenotypic ratio of the offspring. 3. Cross a female with normal color vision, but whose father was colorblind, with a man who has colorblindness. Tell the expected phenotypic ratio of the offspring. 4. Cross a woman who does not suffer from muscular dystrophy and has no family history of muscular dystrophy with a man who has the disorder. Tell the expected…
ne Left:1:41:03 GG Gg gg gG Abdelrahman Elgebaly: Attempt 1 Question 5 (Mandatory) (3 points) In fruit flies, gray body color is dominant over black body color. White eyes are dominant over red eyes. Using the letter G to represent body color and the letter W to represent eye color, what is the genotype of a heterozygous gray bodied, white- eyed fly? Write your answer below. Question 6 (Mandatory) (10 points) Saved Submit your Punnett Squares Lab Worksheet here. Paragraph V B I U A Ev Ev Punnett Squares Lab Worksheet.docx N S ►l| O % + v KY 8-
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Using the following single letter gene designations. R - dominant allele for purple colored kernel r - recessive allele for yellow colored kernel S - dominant allele for smooth kernel s - recessive allele for wrinkled kernel What is the phenotype of an individual with the genotype RRss?