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dominant or recessive? Please explain.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fed74398d-fd76-4135-8bf9-f41e22535b14%2F7c356a42-f9c6-4fbc-87a8-3b183dc70d8b%2F14w99y_processed.jpeg&w=3840&q=75)
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- State whether each of the following genetic defects is inherited as an autosomal recessive, autosomal dominant, or X-linked recessive trait: phenylketonuria (PKU), sickle cell anemia, cystic fibrosis, Tay-Sachs disease, Huntingtons disease, and hemophilia A.4. In the pedigree shown, the trait is most likely caused by what type of inheritance? X-linked dominant autosomal recessive autosomal dominant X-linked recessivere ||| E 6. Label the genotypes for this pedigree of an X-linked recessive disorder (red- green colorblindness). (a) 2 2 3 1 3 a. How do you know? b. Label the genotypes. 4 O To 2 4 5 5 6 6 7. Is the following pedigree autosomal recessive, autosomal dominant or X-linked recessive? 2 8 O T 58
- 5. A female child, Della, has the autosomal dominant condition of polydactyly. Della's mother has the normal number of fingers and toes like her parents and brother (Della's maternal grandparents and uncle). Della's father has six fingers on each hand and so did two of his three sisters and his mother (Della's paternal aunt and grandmother). Della has a younger brother who has the normal number of fingers and toes. Give the genotype of each parent and each child. Della's Mother Della's Father Della Della's Brother 5. Draw a pedigree demonstrating polydactyly in the family above. 77 A heterozygote will display an autosomal recessive trait True or false15 1 point What is the most likely mode of inheritance of the disease depicted in the following pedigree? ||| IV 1 autosomal dominant autosomal recessive 2 N 1 2 2 3 3 4 3 4 5 --D
- 2. Identify the type of trait(s) in the pedigree below * autosomal recessive autosomal dominant X-linked dominant X-linked recessive V.linkedtion 8: below is the pedigree of inheritance of phenylketonuria (PKU). We will designate the letter Caven for the dominant allele and "p" for the recessive allele. 4 The pedigree shows that the pattern of inheritance for the allele for phenylk ylketonuria is: I. II. 1 III. IV. Autosomal dominant Autosomal recessive X-linked dominant X-linked recessive b. The parents in generation I have how many children: I. 3 Boys II. 3 Girls III. IV. 3 Boys and 1 Girl 3 Girls and 1 Boy c. What is the genotype of individual 1 in generation III: I. PP II. pp III. Pp " O 1 III. 50% E III 1 ▬ 2 2 IV. 25% 1 3 IV. Can be PP or Pp ii. Suppose that a man having type AB blood marries a woman having type O blood. What is the probability that their child will have type A blood? I. 100% II. 75% 2 4 3What is the most likely mode of inheritance for this trait? I 1 2 1 2 3 4 6 7 OLO 2 3 4 5 6 7 8 9 10 4 5 6 II E III IV 1 □□ 1 2 3 X-linked dominant X-linked recessive Y-linked autosomal recessive autosomal dominant 5
- 1-Polydactyly is an example of what type of allele? a-X-linked Dominant b-Dominant Lethal c-Autosomal Dominant d-Autosomal Recessive 2-Achondroplasia is an example of what type of allele? a-X-linked Dominant b-Dominant Lethal c-Autosomal Dominant d-Autosomal Recessive3. Huntington's disease is an autosomal dominant condition in humans. The disease is often not diagnosed until adulthood, sometimes after the person has had children (and possibly passed the Huntington's allele to their children). People with Huntington's disease are usually heterozygous and not homozygous dominant. Assume that a person with Huntington's disease has a child with a person who does not have Huntington's disease. What is the probability that the child will have Huntington's disease? Support your answer with a Punnett square (on next page). 14. The couple shown by the pedigree shown below, have 2 children, 1 girl with the disease and 1 boy without the disease as shown. What is the mode of inheritance? (is the disease autosomal recessive, autosomal dominant, or X-linked recessive?) Explain why you think this. Fill in the genotypes to help you answer this.
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