(Solved): The list below shows descriptive terms used for individuals shown on a human pedigree. Select&n ...

I. Human Pedigrees. Genes that are linked to autosomes or to sex chromosomes display specific patterns of inheritance and these pattems can be analyzed using human pedigrees. Today you will leam to recognize the inheritance pattern of mutant alleles in human pedigrees when these alleles that have a dominant-recessive relationship. When a mutation is dominant it is often seen in every generation of human pedigrees whereas recessive mutations tend to skip generations. \( \mathrm{X} \)-linked traits are those that are conveyed by genes located on the \( \mathrm{X} \) chromosome. Since females have two \( X \) chromosomes, they can transmit one to either male or female progeny in their gametes. Males however, have one \( \mathrm{X} \) chromosome and one \( \mathrm{Y} \) and will therefore transmit an \( \mathrm{X} \) chromosome only to their daughters and the \( \mathrm{Y} \) chromosome to their sons. The figure below shows two human pedigrees. Use the figure to answer questions \( 1-8 \). 1. Give the chromosomal linkage for each pedigree shown on the figure and state if the mutant allele is dominant or recessive. ( \( 2 \mathrm{pts} \) ) Pedigree A: Pedigree \( \mathrm{B} \) : The list below shows descriptive terms used for individuals shown on a human pedigree. Select a term that best describes each individual shown in questions \( 2-7 \). Write your selection on the line at the right of the question. A term may only be used once or not at all ( 8 pts) a. Consanguineous parents \( \begin{array}{ll}\text { e. Undetermined sex } & \text { b. Deceased individu } \\ \text { i. Siblings } & \text { j. Mated couple } \\ \text { 2. Pedigree } \mathrm{A} \text {; Individuals II-3 and II-4 }\end{array} \) The list below shows descriptive terms used for individuals shown on a human pedigree. Select a term that best describes each individual shown in questions \( 2-7 \). Write your selection on the line at the right of the question. A term may only be used once or not at all. ( \( 8 \mathrm{pts}) \) \( \begin{array}{llll}\text { a. Consanguineous parents } & \text { b. Deceased individual } & \text { c. Fraternal twins } & \text { d. Proband } \\ \text { e. Undetermined sex } & \text { f. Unrelated parents } & \text { g. Identical twins } & \text { h. Affected individual } \\ \text { i. Siblings } & \text { j. Mated couple } & \text { k. Cousins } & \end{array} \) 2. Pedigree \( \mathrm{A} \); Individuals II-3 and II-4 3. Pedigree \( \mathrm{A} \); Individual III-3 4. Pedigree A; Individuals III-1 and III-2 5. Pedigree B; Individual I-2 6. Pedigree B; Individuals III-3 and III-4 7. Pedigree \( \mathrm{B} \); Individual III-6 8. Assume that \( \mathrm{D} \) is dominant to \( \mathrm{d} \). Write a genotype for the individual shown below. Pedigree A; Individual I-2: Pedigree \( \mathrm{B} \); Individual II- 5 : 1