I 6. Answer the questions about the pedigree shown below. a. What is the pattern of inheritance (dominant or recessive) depicted? Write the genotypes for all individuals - use "A" to represent a dominant allele & "a" to represent a recessive allele, if one allele is unknown, use a "_" or "?" to represent that allele. 1 II III b. WHY is the other pattern ruled out? Explain by giving a specific example. You may refer to individuals by their generation and number (ie. 1-2) 1 N 5 6 7 5 8 6

I 6. Answer the questions about the pedigree shown below. a. What is the pattern of inheritance (dominant or recessive) depicted? Write the genotypes for all individuals - use "A" to represent a dominant allele & "a" to represent a recessive allele, if one allele is unknown, use a "_" or "?" to represent that allele. 1 II III b. WHY is the other pattern ruled out? Explain by giving a specific example. You may refer to individuals by their generation and number (ie. 1-2) 1 N 5 6 7 5 8 6

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter21: Microevolution: Genetic Changes Within Populations

Section: Chapter Questions

Problem 12TYK: Discuss Concepts Many human diseases are caused by recessive alleles that are not expressed in...

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Give typing answer with explanation and conclusion to all parts The chromosomes drawn below are found in a human skin cell. The lines represent the chromosomes themselves. The letters indicate the location of a particular version of a gene. a) T/F An individual’s offspring are more likely to inherit a D1 and R together than a D1 and T9 together. b) T/F About 50% of the egg cells from this individual will have both T9 and BA5. c) T/F Because r is recessive, the frequency at which the r version of the gene occurs in a population is lower than the frequency at which the R version occurs in the population. d) T/F If the protein produced by the BA gene is involved in the formation of ovaries, then the BA gene is likely located on a sex chromosome. e) T/F Because the genes shown here are found in skin cells, these genes code for proteins required for skin cell function.
Genetics Constrict a Table: (i) Compare and contrast the down syndrome, pattau syndrome, turnor syndrome, Klinefelter syndrome, trisomy 21, trisomy 18. (ii) compare and contrast the different inheritance disorders in pedigree. (iii) compare and contrast the mendalin and non- mendalin types in detail (with all types). Thanks in advance.
1. Construct a pedigree chart of the trait traced in the situation below.2. The pedigree chart must be constructed with the names and genotypes at the bottom of every individual in the chart.If it is autosomal: Always use the first letter of the dominant trait to represent the dominant allele. For example, if the dominant trait is red, so the allele R-red, while r-yellow. For example, if the person is homozygous dominant for curly hair, we write CC as his genotype. If sex-linked, do not forget to write the parents’ chromosomes (XX-female, XY-male), with their corresponding superscripts (dominant or recessive). The superscript must be based on the first letter of the disorder. For example, the mother is a carrier of hemophilia (which is x-linked recessive), so we write XHXh. If the father has hemophilia, we write XhY. Put the pedigree chart using code properly. The situation is given below: Trait: NeurofibromatosisThe dominant form is neurofibromatosis, caused by the production of…
1. Construct a pedigree chart of the trait traced in the situation below.2. The pedigree chart must be constructed with the names and genotypes at the bottom of every individual in the chart.If it is autosomal: Always use the first letter of the dominant trait to represent the dominant allele. For example, if the dominant trait is red, so the allele R-red, while r-yellow. For example, if the person is homozygous dominant for curly hair, we write CC as his genotype. If sex-linked, do not forget to write the parents’ chromosomes (XX-female, XY-male), with their corresponding superscripts (dominant or recessive). The superscript must be based on the first letter of the disorder. For example, the mother is a carrier of hemophilia (which is x-linked recessive), so we write XHXh. If the father has hemophilia, we write XhY. Put the pedigree chart using code properly. The situation is given below: Trait: NeurofibromatosisThe dominant form is neurofibromatosis, caused by the production of…
211 Inheritance 2. The pedigree chart below illustrates the inheritance of a trait (darker symbols) in two families joined in marriage. 2 4 6 8. 10 11 12 13 14 II 4 5 (a) State whether the trait is dominant or recessive, providing a reason for your choice: (b) State whether the trait is sex-linked or not, providing a reason for your choice: 3. The recessive sex-linked gene (h) prolongs the blood-clotting time, resulting in the genetically inherited disease called hemophilia. From the information in the pedigree chart (right), answer the following questions: Hemophilia in humans (a) If 112 marries a normal man, what is the probability of her first child being a hemophiliac? 1 (b) Suppose her first child is actually a hemophiliac. What is the chance that her second child will be a boy with hemophilia? 4 (c) If 114 has children with a hemophiliac man, what is the probability that her first child will be phenotypically normal? (d) If the mother of 12 was phenotypically normal, what…
PEDIGREE ANALYSIS ANSWER THE FOLLOWING QUESTIONS 1. The chart shows a family's pedigree for Hitchhikers Thumb. Is this trait dominant or recessive? 2. How do you know? 3. How are individuals III-1 and III-2 related? 4. How would you name the two individuals that have Hitchhiker"s thumb? 5. Name the 2 individuals that were carriers of Hitchhiker's Thumb. 6. Is it possible for individual IV-2 to be a carrier? Why?
Using the pedigree chart, explain: a) The number of generations seen. b) If all blue-coloured shapes are affected with disease X- how many males are affected? how many females are affected? c) Does this disease have a dominant or recessive inheritance pattern? Justify your answer.
Written Response 1a) Identify the genotypes of individuals ii-1, ii-4, iii-4, and IV-1. b) If individual III-9 and individual III-10 have another child, what is the probability that this child will have normal colour vision? Sketch a punnett square to support your answer (be creative -- you can type this up on the computer) c) Determine the frequency of the achromatopsia allele in the population illustrated in the pedigree. Round your answer to three decimal places. Show your work.
Part 1 - With use of Punnett diagrams discuss how the results of experiments carried out by Austrian monk Gregor Mendel on pea plants brought about the Law of Dominance, the Law of Segregation, and the Law of Independent assortment. Part 2 - In humans, the gene that produces the disease Sickle Cell Anaemia is recessive to the gene for healthy haemoglobin production. a) How can two phenotypically healthy parents have a child who suffers from Sickle cell Anaemia? In your answer use suitable letters to show the genotypes of the parents and construct a Punnett diagram to show all the possibilities of the children's genotypes. b) Based on the outcome of your Punnett diagram, state and explain the probability of a child being a sufferer of Sickle Cell Anaemia and the probability of a child not suffering from the disease. c) If an individual who suffers from Sickle cell disease has a child with someone who is healthy (and not carrying the sickle cell gene), what is the probability that…
2) Answer the following questions given the pedigree below. Please assume that no other mutations are occurring, complete penetrance, and that the individual marked with an asterisk (*) doesn’t carry the allele causing the affected phenotype. Q3) What is the probability that individual IV-1 will be a carrier? Please explain your answer.
Sickle cell anemia causes hemoglobin, the oxygen - carrying molecule of red blood cells, to be misshapen resulting in disease. "H" is the normal hemoglobin allele and "h" is the allele for sickle - cell shaped hemoglobin. In order to get the disease, a person must have a recessive genotype (hh). Two people with normal red blood cells are carriers of the gene - they have m genotypes Hh. Questions: a. What are the possible genotypes of the eggs the woman can produce? b. What are the possible genotypes of the sperm the man can produce? c. What is the genotypic ration for the offspring? d. What is the phenotype ratio for the offspring? e. What is the couple's chance of having a child a sickle cell anemia?
Genetics Question: In humans, an allele for black hair in one gene can mask the expression of color on a secondgene. In one family with 10 children, 7 have black hair like their parents, 2 with red hair, and onewith blond hair. The blond child soon came of age and married a man with red hair. All their children have red hair. a. What specific mode of inheritance is exhibited? b. Using the letters A and B, assign alleles to the traits c. Based on the 9:3:3:1 ratio, what are the genotypes of the following:  7 children with black hair ________________ 2 children with red hair ___________________ 1 child with blond hair ____________________ d. Give the COMPLETE genotypes of the following:  Parents of the children ____________________ Man with red hair _________________________ All children (of the man) with red hair ________________