A male achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's father was six feet tall, and both the woman's parents were of average height. Acondroplastic dwarfism is autosomal dominant, and red-green color blindness is X-linked recessive. How many of their female children might be expected to be color blind and average to tall height (i.e., not an anchondroplastic dwarf)?
all |
none |
half |
one of four |
three of four |
A male achondroplastic dwarf with normal vision marries a color-blind woman of normal height. The man's...
Red-green color blindness is due to an X-linked recessive allele in humans. A widow's peak (a hairline that comes to a peak in the middle of the forehead) is due to an autosomal dominant allele. Consider the following family history: A man with a widow's peak and normal color vision marries a color-blind woman with a straight hairline. The man's father had a straight hairline, as did both of the woman's parents. Use the family history to make predictions about...
A woman with red-green color-blindness has a mother with normal vision. Knowing that color-blindness is a sex-linked recessive gene, can you determine what her father's phenotype is? (yes or no) If so, what is it?The woman marries a man with normal vision. What is the probability they will have sons who are red-green color-blind? What is the probability they will have daughters who are red-green color-blind?
THIS ASSIGNMENT IS DUE IN YOUR LAB SECTION 1. A color-blind man marries a woman with normal color vision. The woman's father was also color-blind. a.) What is the chance that their first child will be a colorblind son? A colorblind daughter? b.) If they have four children, what is the chance that two will be colorblind sons? 2、 The Brown's are both carriers of the recessive allele that causes the metabolic disorder called phenylketonuria. The gene responsible for the...
NAME: 6. Red-green color deficiency is an X-linked recessive trait. A woman with normal color vision has a father who is color-deficient. The woman has a child with a man with normal color vision. Which phenotype is NOT expected as a possibility for that child? a) a color-deficient male b) a color deficient female c) a male with normal color vision d) a female with normal color vision 7. Which of the individuals in the human pedigree shown below allow...
A male with normal vision marries a woman who is color-blind. She gives birth to a daughter who is also color-blind. The husband claims the child is not his. The wife claims the child is his. Can you support the argument of either parent? If yes, which one? Why?
Question 14 3 pts A normal vision male X'Y marries a carrier female for red-green color blindness XX. What is the chance they will have a color blind son? 25% 100% 75% 0% 50%
Red-green color blindness is a sex-linked trait, with the normal vision phenotype being dominant (C) and the color blind (c) phenotype being recessive. If you are male and your father is color blind, what is the chance (expressed as a percentage) that you will inherit his trait for color blindness? What if your mother is a carrier for color blindness (but your father is not color blind), what is the chance of you being color blind? Make sure...
SEX-LINKED TRAITS 8. Create a Punnett square to determine the offspring that would result from a cross between a woman with normal vision, who carries the allele for color-blindness, and a man who has normal vision. Note: color-blindness is an X-linked recessive tret What are the genotypes of the parent? List all possible genotypes of the offspring. male, normal male, color-blind female, normal vision female, carrier 50% Co hat percentage of their sons would be color-blind? What percentage of their...
SEX-LINKAGE Red-Green color-blindness is sex-linked X-linked recessive trait. A normal sighted woman whose father is color- blind marries a color-blind man. they have 20 children. Of those 20, 6 are normal sighted females, 5 are color-blind females, 4 are normal sighted males and 5 are color-blind males. 7. What are the genotypes of the parents and all the children? 8. Theoretically, what would be the genotypic and phenotypic ratios of the offspring?
Suppose a woman with a color blind father and a mother with no history of color blindness in her family (i.e. she is homozygous dominant) marries a man with normal color vision. What are the likely genotypes and phenotypes of any children they have. (Note: your probability value should be given as a percentage - %) Briefly explain your answer