Homework Answers
4. A) AA * aa ---> Aa
5. sickle cell anemia and AB blood type is an example of codominance . alleles that lack dominant and recessive relationship and are both observed phenotypically to same degree are called codominant.
6. C) is more likely to resist malaria than an individual with two normal genes for hemoglobin.
7. hemophillia is a sex linked recessive disorder.
8. (A) test cross is mating between an individual of unknown genotype and an individual homozygous recessive for the trait of interest.
9. (B) AABB *aabb
10. AA * aa (D)
11. (A) bb - possess two identical alleles for a trait
12. (E) AaBb - posses one of each allele for a particular trait
13. (C) AA/Aa *aa
48. hyperchholestrolemia- incomplete dominance.
50. down syndrome and turner syndrome- nondisjunction
49. sickle cell anemia- pleiotropy
51. hemophilia -X linked inheritance
52. ABO blood group- codominance
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question 5-52
93 Dd D) dd D) aa x aa C) human height E) DI 4.Which...
5) Human recessive disease: cystic fibrosis Jane and John are expecting a baby know that they...
5) Human recessive disease: cystic fibrosis Jane and John are expecting a baby know that they are both carriers (i.e., heterozygous) of cystic fibrosis (Cc). What is the probability that their child will have cystic fibrosis (CC)? What is the probability that their child will be a carrier of cystic fibrosis? Chance of child being: 25 % Homozygous dominant Genotype: 50_%Cystic fibrosis carrier Genotype: 25 % Cystic fibrosis Genotype: 6) Human recessive disease: Phenylketonuria A couple has just found out...
6. In humans, having a widow’s peak (W) is dominant to not having a widow’s peak...
6. In humans, having a widow’s peak (W) is dominant to not having a widow’s peak (w). Sally has a widow’s peak. If Sally has a son who does not have a widow’s peak, what genotype can the father NOT be? 7. The ability to roll the tongue inward in humans is determined by the dominant gene T. From a couple both able to roll the tongue, a child is born. The child is unable to roll the tongue. What...
QUESTION 9 5 pe If the characteristic depicted in the pedigree below is rare and subject...
QUESTION 9 5 pe If the characteristic depicted in the pedigree below is rare and subject to complete penetrance, it is likely to be X-linked recessive? 5 6 7 -OOO No, because individuals ll-2 and 11-4 are not affected No, because individuals 111-4 and III-6 are not affected Yes, because individuals III-4 and III-6 are not affected Yes, because only females are affected in generation 11 1. The gene for cystic fibrosis (normal dominant allele CF and abnormal recessive allele...
0% B)25% C) 50% D) 75% E) 100% Show Punnett square and explanation. If a red...
0% B)25% C) 50% D) 75% E) 100% Show Punnett square and explanation. If a red flowered plant is crossed with a white flowered one and the offspring produces pink flowers. What type of inheritance does this represent? sex linked B. multiple allele C incomplete dominance D. environmental effect E. partial inheritance 2) If a man and a woman of no rmad skin color have an albino child (aa) hat are the genotypes of the parents? A). AA and Aa...
1)Dimples is a dominant trait and represented as “D”. No Dimples is a recessive trait and...
1)Dimples is a dominant trait and represented as “D”. No Dimples is a recessive trait and represented as “d”. The dimples/no dimples alleles follow Mendelian genetics. What is the genotype of an individual who is heterozygous for the dimples trait? Dd DD dd Dimples No dimples 2) Dimples is a dominant trait and represented as “D”. No Dimples is a recessive trait and represented as “d”. The dimples/no dimples alleles follow Mendelian genetics. Person A has dimples and is homozygous...
D. The frequencies of the genotypes "AA" and "Aa." E. The frequencies of the two possible...
D. The frequencies of the genotypes "AA" and "Aa." E. The frequencies of the two possible phenotypes if "A" is completely dominant over "a." 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of...
answer all questions to get a thumbs up 4. A woman has a Widow's peak (dominant),...
answer all questions to get a thumbs up
4. A woman has a Widow's peak (dominant), but she does not know her genotype. She marries a man who has a straight hairline and they have 13 children. Nine have widow's peaks and four have straight hairlines a. What are the genotypes of the parents? b. What are the genotypes of the children? C. Explain how you arrived at your answers. G host 5. In humans, Phenylketonuria (PKU) and Lactose intolerance...
Match the following terms with the appropriate description below: a. alleles b. autosomes c. dominant allele...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
In humans, brown (B) eye color is dominant to blue (b) eye color and brown (H)...
In humans, brown (B) eye color is dominant to blue (b) eye color and brown (H) hair color is dominant to red (h) hair color. [Assume single-gene traits] Of only the offspring that have brown eyes and brown hair (B_H_, where dash indicates that the individual could be either homozygous or heterozygous for the dominant allele), what proportion are expected to have a genotype that is heterozygous for one of the traits but homozygous for the other trait? A) 1/4...
1. For each of the following blood types, list the possible genotypes: Phenotype Possible Genotypes A B...
1. For each of the following blood types, list the possible genotypes: Phenotype Possible Genotypes A B AB O 2. Dr. Paul is blood type O. His father was blood type A and his mother was blood type B. What were the genotypes of his parents? What are the possible blood types and phenotypic ratios expected for a cross involving these parental genotypes? 3. In the ABO blood system in human beings, alleles A and B are codominant and both are...
5) Human recessive disease: cystic fibrosis Jane and John are expecting a baby know that they are both carriers (i.e., heterozygous) of cystic fibrosis (Cc). What is the probability that their child will have cystic fibrosis (CC)? What is the probability that their child will be a carrier of cystic fibrosis? Chance of child being: 25 % Homozygous dominant Genotype: 50_%Cystic fibrosis carrier Genotype: 25 % Cystic fibrosis Genotype: 6) Human recessive disease: Phenylketonuria A couple has just found out...
QUESTION 9 5 pe If the characteristic depicted in the pedigree below is rare and subject to complete penetrance, it is likely to be X-linked recessive? 5 6 7 -OOO No, because individuals ll-2 and 11-4 are not affected No, because individuals 111-4 and III-6 are not affected Yes, because individuals III-4 and III-6 are not affected Yes, because only females are affected in generation 11 1. The gene for cystic fibrosis (normal dominant allele CF and abnormal recessive allele...
0% B)25% C) 50% D) 75% E) 100% Show Punnett square and explanation. If a red flowered plant is crossed with a white flowered one and the offspring produces pink flowers. What type of inheritance does this represent? sex linked B. multiple allele C incomplete dominance D. environmental effect E. partial inheritance 2) If a man and a woman of no rmad skin color have an albino child (aa) hat are the genotypes of the parents? A). AA and Aa...
D. The frequencies of the genotypes "AA" and "Aa." E. The frequencies of the two possible phenotypes if "A" is completely dominant over "a." 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of...
answer all questions to get a thumbs up
4. A woman has a Widow's peak (dominant), but she does not know her genotype. She marries a man who has a straight hairline and they have 13 children. Nine have widow's peaks and four have straight hairlines a. What are the genotypes of the parents? b. What are the genotypes of the children? C. Explain how you arrived at your answers. G host 5. In humans, Phenylketonuria (PKU) and Lactose intolerance...
Match the following terms with the appropriate description
below:
a. alleles b. autosomes c. dominant allele d. genotype e.
heterozygous f. homozygote g. phenotype h. recessive allele i. sex
chromosomes
1. ________________ genetic make-up
2. ________________ how genetic make-up is expressed
3. ________________ chromosomes that dictate most body
characteristics
4. ________________ alternative forms of the same gene
5. ___________an individual bearing two alleles that are the same
for a particular trait 6. ________________ an allele that is
expressed, whether in...
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