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- A woman with achondroplasia (a dominant form of dwarfism) anda phenotypically unaffected man have seven children, all of whomhave achondroplasia. What is the probability of producing such afamily if this woman is a heterozygote? What is the probabilitythat the woman is a heterozygote if her eighth child does not havethis disorder?according to tongue rolling what is my phenotype and my parents' phenotype from the observed phenotypes? list the possible genotypes for each, and do a Punnett Square for the parents to determine the likelihood of me having gotten my given phenotype and any insights on what your genotype is from the Punnett Square.Unattached earlobes (E) are dominant over attached earlobes (e) [Figure (a) and (b)]. If a woman with unattached earlobes and a man with attached earlobes have children, what percentage of their children has the possibility of having unattached earlobes if the mother is homozygous for the trait?
- A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement between the second andthird chromosomes. Her chromosomes, compared to those in anormal karyotype, are diagrammed on the next page:(a) This woman is phenotypically normal. Does thissurprise you? Why or why not? Under what circumstancesmight you expect a phenotypic effect of such arearrangement?Analysis of Autosomal Recessive and Dominant Traits Does the indicated individual (III-5) show the trait in question?Analysis of Autosomal Recessive and Dominant Traits Huntington disease is a rare, fatal disease that usually develops in the fourth or fifth decade of life. It is caused by a single autosomal dominant allele. A phenotypically normal man in his twenties who has a 2-year-old son of his own learns that his father has developed Huntington disease. What is the probability that he himself will develop the disease? What is the chance that his young son will eventually develop the disease?
- Analysis of Autosomal Recessive and Dominant Traits The father of 12 children begins to show symptoms of Huntington disease. a. What is the probability that Sam, the mans second-oldest son (II-2), will suffer from the disease if he lives a normal life span? (Sams mother and her ancestors do not have the disease.) b. Can you infer anything about the presence of the disease in Sams paternal grandparents?Analysis of X-Linked Dominant and Recessive Traits Suppose a couple, both phenotypically normal, have two children: one unaffected daughter and one son affected with a genetic disorder. The phenotype ratio is 1:1, making it difficult to determine whether the trait is autosomal or X-linked. With your knowledge of genetics, what are the genotypes of the parents and children in the autosomal case? In the X-linked case?True or false? Codominance and complete dominance establish the same pattern of inheritance.
- A couple has three children, all of whom have brown eyes and blond hair. Both parents are heterozygous for brown eyes (Bb), but one is blond (rr) and the other is a redhead (Rr). What is the probability that the next child will be a brown-eyed redhead? For full credit, you must show all workSUBJECT-GENETICS TOPIC: Inheritance Related to Sex Identify some form of abnormalities wherein it could be due to the presence of gene in: X chromosome only b) Y chromosome only ? Give example/s. Some traits are expressed by both in the male and female humans,but kindly elaborate such traits which are only present in male or in female, give example/s which could be explain under sex-limited and sex-influenced genes.Plsssssssss helppppppppp, how can NF1 be spontaneous? Include the following terms: -genotype - phenotype - homozygous - heterozygous - inheritance - alleles - dominant - recessive