1. Two normal-visioned parents produce a colour-blind son. What are the genotypes of the parents? Remember the gene for colour vision is sex-linked.
Q: 6. In starfish, pink body color (P) is dominant to orange (p), and thick eyebrows (T) are dominant…
A: Introduction The observable physical properties of an organism, such as its appearance, development,…
Q: 3. The father shown beiow has Hemophilia, an X-linked recessive disorder. If this couple had a son,…
A: ANS- If the father has hemophilia and the mother does not carry hemophilic gene, then no son (XY)…
Q: 5. Consider the following pedigrees. Each represents inheritance of a recessive phenotype. Explain…
A: Pedigree analysis is the diagrammatic representation which represents family history of individuals…
Q: 3a. A father that is A+ has a child with a mother that is B+. If each parent carries the recessive i…
A: One parent with A blood group and another with B can produce a child with entire range of blood…
Q: 3. Assume that hair color is independent of sex, and that having blond hair. Determine the…
A: Genetics of hair colour - Red hair is dominant over blond hair. Red = RR, Rr Blond = rr
Q: 2. What are the factors that lead to phenotypic variation.
A: Introduction The physical appearance of an organism such as colour, height, which occurs as a result…
Q: 6. Assume that brown eyes are dominant to blue eyes. A father who is heterozygous brown eyed and a…
A: Human blood grouping is dependent on the presence of the type of antigen present on the surface of…
Q: 6. A woman claims that a certain man is the father of her daughter; however, the man denies this…
A: Color blindness is an X-linked recessive disorder.
Q: 1. How can I explain why a woman had a son with normal vision and normal blood clotting. If she…
A: Hemophilia A and hemophilia B are inherited in an X-linked recessive pattern. The genes associated…
Q: 1. Write the three genotypes for earlobe attachment as it applies to the following individuals. a.…
A: Mendel's laws of inheritance included the law of dominance which stated that a given gene can have…
Q: 1. Which of the following pairs share 50% of their genes? Any two siblings A pair of dyzogotic twins…
A: Ans.1 Dizygotic twins, also known as Fraternal twins are created when two distinct eggs are…
Q: 1. Cross a person with heterozygous type B blood with a person with type AB blood. List the…
A: 1. Blood is a circulating biological fluid in the body composed of blood cells and plasma.…
Q: 3. How can a female carrier of an X-linked recessive disorder have a daughter who is affected?
A: If a female is a carrier then one of her chromosomes carries the defective gene.
Q: 2. A red-green colorblind woman marries a man with normal vision. Their first child is a girl. Their…
A: Given that a red-green colorblind woman marries a man with normal vision. We know that…
Q: 1. Two normal visioned parents have a color-blind son. Give the genotype of both parents and the…
A: Colour blindness is a sex-linked recessive disorder, results in defect in either red or green cone…
Q: 1. Y. Awhite Four o'clock flower is crossed with red Four o'clock flower. What will be the color of…
A: An allele is a set of genes that occur on a specific chromosome at a specific position and regulate…
Q: A woman is color blind. If she marries a man with normal vision, What are the chances of her a.…
A: Inheritable material is carried forward from the preceding generation to the succeeding generations.…
Q: 2. Assume that one of Squidward's sons, who is heterozygous for the light blue body color, married a…
A: Given that squidward's child is hetrozygous for light blue color body . Thus we can assume a gene B…
Q: 1. A woman is colorblind. Construct a Punnett square and using versions of the letter “C” determine…
A: As per our company guidelines we are supposed to answer only first question or first 3 subparts of…
Q: 4. A woman with type O blood, whose father has type A and whose mother has type B has a child with…
A: (According to our guidelines we are required to answer only the first three questions in case of…
Q: 4. If a pure-breeding (homozygous) black (dominant), long-haired (recessive) cat is mated to a pure-…
A:
Q: Normal color vision (XM) is dominant over color blindness (X"). Suppose a color-blind man fathers…
A: Following Mendelian inheritance, the daughters receive one of their X chromosomes from the mother…
Q: 6. Consider that people with blue eyes must have two alleles for blue eyes since blue eye color is a…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: 1) What is meant by epistasis? The natural colouration of wild mice is called agouti and is produced…
A: "Genes" store genetic information in the form of DNA, which may be converted into functional…
Q: Need a better explanation
A: The allele combination of a gene present in an organism determines the genotype and phenotype. The…
Q: 4. In cats, short hair is dominant to long hair. If a long-haired cat is mated to a pure-bred,…
A: The Mendels laws of Inheritance states that any trait exists as a pair, one is dominant and the…
Q: 3. In humans, astigmatism is dominant over normal vision and right-handedness is dominant over…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: 2. In humans, widow's peak (W) is dominant over a continuous hairline (w), and short fingers (F) are…
A: Widow peak refers to the hairline which is characterized by the V-shape point in the middle of the…
Q: 8. Assume that black fur is dominant to white fur for cats. When a black cat of an unknown genotype…
A: Suppose that the fur color in cats is controlled by: A= dominant allele responsible for black fur a=…
Q: 1. In fruit flies, the gene for white eyes is sex-linked recessive. (R) is red and (r) is white.…
A:
Q: 7. The ability to roll your tongue (R) is dominant to lack of this ability (r). A. What is…
A: 7A 'R' is the dominant allele, while 'r' is the recessive allele. Here, the following…
Q: 1. Which of the following describes part of a phenotype? A. Gg B. homozygous C. having freckles D.…
A: Phenotype refers to the physical characteristics of an organism.
Q: Perception of a bitter taste from phenylthiocarbamide (PTC) is dominant (T) to not being able to…
A: Albinism is passed on in an autosomal recessive inheritance pattern. . This means a child has to…
Q: 6. In man, normal color vision vs red-green color blindness is controlled by the allelic gene C…
A: The colorblind trait is encoded by genes present on the X chromosome. It is a kind of recessive…
Q: 2. Show the cross: bbEe x BbEe How many out of 16 have: black fur and floppy ears? black fur and…
A: In rabbits, the allele that codes for black fur are dominant over the allele that codes for brown…
Q: 1. In humans, brown eyes (B) are dominant over blue (b). A brown-eyed man marries a blue-eyed woman…
A: Punnet Square: It is a graphical representation of the probable genotypes of an offspring arising…
Q: 1. Consider blue eyes in man as recessive to brown eyes. Show the expected children of a marriage…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homozygous…
Q: 7. A wom an who is a carrier for red- A Woma green colorblindness marries a man who is colorblind.…
A: Colorblind is a recessive sex-linked trait in which the eye fails to distinguish red and green…
Q: 1) Janet and her family members have attached earlobes (recessive trait). However, her maternal…
A: Genetic Traits --The characters that are encoded DNA are called genetic traits . Mendal 'S law of…
Q: 9. Consider the below Punnett square cross. Explain how you could use it to determine which parent…
A: Punnett square was named after the scientist who discovers it, Reginald C. Punnett, It is a square…
Q: 1.) A student recently told me that both she and her brother have blue eyes (bb), and that both of…
A: It is given that both the f1 progenies are blue eyes. It is represented with bb that means it is a…
Q: 5. Cross a female who is colorblind with a man who has normal color vision. Tell the expected…
A: Introduction The colour blind ‘gene’ is carried on one of the X chromosomes. Since men have only one…
Q: 4. Jane's father suffers from hemophilia B and her maternal grandfather was colorblind. Her first…
A: Sex -linked recessive inheritance : Most affected individuals are male. Affected males result from…
Q: 1. What is the probability to have white flower if two pink flowers are bred? 2. What are the…
A: The Punnett square is a table that lists all of the possible results of a genetic cross between two…
Q: А в F C D E H G J K L
A: B, C, H, J, L will all be carrier.
Q: 7. What will be the color vision status of children (sons and daughters) when a color blin d man…
A: please repost remaining questions separately. 7. Color blindness is a x-linked recessive…
Q: 3. A person with hemophilia (sex-linked recessive trait) lacks a protein needed for blood clotting…
A: Haemophilia is a genetic disorder and is inherited from one generation to the next.
Q: 5. Genes for which of the following are coded on the Y chromosome? a. Male pattern baldness b.…
A: Genes are hereditary units. There are 46 chromosomes in human cells. 22 pairs of somatic chromosomes…
Q: 5. What is one dil sex-linked trait:
A: Chromosomal aberrations are classified based on the type of chromosome which is affected. It is…
Q: 4) A red flower (Rr) is crossed with a white flower (rr). 5) A white flower (rr) is crossed with a…
A: # According to our guideline we can answer only the first question or up to fast three some parts of…
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- Mike was referred for genetic counseling because he was concerned about his extensive family history of colon cancer. That family history was highly suggestive of hereditary nonpolyposis colon cancer (HNPCC). This predisposition is inherited as an autosomal dominant trait, and those who carry the mutant allele have a 75% chance of developing colon cancer by age 65. Mike was counseled about the inheritance of this condition, the associated cancers, and the possibility of genetic testing (on an affected family member). Mikes aunt elected to be tested for one of the genes that may be altered in this condition and discovered that she did have an altered MSH2 gene. Other family members are in the process of being tested for this mutation. Is colon cancer treatable? What are the common treatments, and how effective are they?Mike was referred for genetic counseling because he was concerned about his extensive family history of colon cancer. That family history was highly suggestive of hereditary nonpolyposis colon cancer (HNPCC). This predisposition is inherited as an autosomal dominant trait, and those who carry the mutant allele have a 75% chance of developing colon cancer by age 65. Mike was counseled about the inheritance of this condition, the associated cancers, and the possibility of genetic testing (on an affected family member). Mikes aunt elected to be tested for one of the genes that may be altered in this condition and discovered that she did have an altered MSH2 gene. Other family members are in the process of being tested for this mutation. Seventy-five percent of people who carry the mutant allele will get colon cancer by age 65. This is an example of incomplete penetrance. What could cause this?In addition to codominance, the ABO blood group antigens are also an example of ________. incomplete dominance X-linked recessive inheritance multiple alleles recessive lethal inheritance
- 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.Marian syndrome (Section 13.5) is inherited in an autosomal dominant pattern. What is the chance that a child will inherit the associated allele if one parent does not carry it and the other is heterozygous?Figure 8.16 What ratio of offspring would result from a cross between a white-eyed male and a female that is heterozygous for red eye color?
- Achondroplasia is a rare dominant autosomal defect resulting in dwarfism. The unaffected brother of an individual with achondroplasia is seeking counsel on the likelihood of his being a carrier of the mutant allele. What is the probability that the unaffected client is carrying the achondroplasia allele?5) Humans who have an abnormally high level of cholesterol are said to suffer from familialhypercholesterolemia. The gene for this disorder is dominant (C). A man who isheterozygous for familial hypercholesterolemia marries a woman who is homozygousfor the recessive allele. What is the probability that they will have children that sufferfrom this disorder? please draw the puutnet square and also write the parents and gemtaics top the puutnet square thanksHuntington disease is a rare dominant condition in humans that results in a slow but inexorable deteriorationof the nervous system. The disease shows what mightbe called age-dependent penetrance, which is to saythat the probability that a person with the Huntingtongenotype will express the phenotype varies with age.Assume that 50% of those inheriting the HD allele willexpress the symptoms by age 40. Susan is a 35-yearold woman whose father has Huntington disease. Shecurrently shows no symptoms. What is the probabilitythat Susan will show symptoms in five years?
- Huntington’s disease, is an incurable neurodegenerative genetic disorder that affectsmuscle coordination and some cognitive functions, typically becoming noticeable inmiddle age. It results from an autosomal dominant gene (H) and there are no carriers ofthe disease. Two parents with Huntington’s disease have an affected child. What is theprobability that their next child will be an unaffected girl if they are not double-dominant?20.TRC is a non mendelian trait. A.what is the mode of inheritance of total ridge count (TRC) in human? B. Give two factor that influence this TRC trait. C.if father has genotype of AaBbccdd and mother has a aaBbccDd .what is the genotype of the maximum and minimum TRC for their expected children?A boy with Klinefelter syndrome (47,XXY) is born to a motherwho is phenotypically normal and a father who has the X-linkedskin condition called anhidrotic ectodermal dysplasia. The mother’sskin is completely normal with no signs of the skin abnormality.In contrast, her son has patches of normal skin and patchesof abnormal skin. Using the appropriate genetic terminology, explain theson’s skin phenotype.