Homework Answers
An inactivated X chromosome is called a Barr body
1. a. Man's genotype- XdY
b. Women's genotype- X+Xd where d=dimple trait
2. a. Man's genotype- X+Y
b. Women's genotype- XfXf where f= feckle trait
3.a. Man's genotype- XhY
b. Women's genotype- X+X+ where h=hemophilic trait
4.a. Man's genotype- X+Y
b. Women's genotype- X+Xh where h=hemophilic trait
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etics Assignment As Save Sub An inactivated X chromosome is called a(n) O linked body O...
2. A widow's peak (W) is dominant to a straight hairline (w), and unattached earlobes (E)...
2. A widow's peak (W) is dominant to a straight hairline (w), and unattached earlobes (E) is dominant to attached earlobes (e). Two parents, each with the genotype WwEe, have kids. a. What proportion of their offspring will have a widow's peak and unattached earlobes? b. What proportion will have unattached earlobes but have either a widow's peak or a straight hairline? 3. A woman with normal color vision, whose mother was colorblind, has children with a man with normal...
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...
Red-green color blindness is due to an X-linked recessive allele in humans. A widow's peak (a...
Red-green color blindness is due to an X-linked recessive allele in humans. A widow's peak (a hairline that comes to a peak in the middle of the forehead) is due to an autosomal dominant allele. Consider the following family history: A man with a widow's peak and normal color vision marries a color-blind woman with a straight hairline. The man's father had a straight hairline, as did both of the woman's parents. Use the family history to make predictions about...
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...
need help with 1 and 2 please. X-linked Recessive Traits Review X-linked traits in your textbook....
need help with 1 and 2 please.
X-linked Recessive Traits Review X-linked traits in your textbook. 1 In cars, the Ballele produces black fur & b produces orange fur. This gene is X-linked (X & X". Both colors are expressed in heterozygotes calico). If alcat has 2 calico kittens, 1 male black kitten, and I female orange kitten, what is the ty p henotype of the father cat? (Hint: Work backwards & use a Punnett square Remember that not every...
Hemophilia is an X linked recessive condition in humans (Xh). Blood type (AB) is determined utilizing...
Hemophilia is an X linked recessive condition in humans (Xh). Blood type (AB) is determined utilizing multiple alleles of I, two of which are codominant. A widow's peak is determined by a single dominant allele (W), while the recessive phenotype is a straight hairline. The ability to taste PTC is determined by a single dominant allele (T). while the recessive phenotype is a non-taster. Eugene is a non-taster male who does not have hemophilia. He has AB blood and a...
2. In humans, the allele for freckles (F) is dominant and the allele for no freckles...
2. In humans, the allele for freckles (F) is dominant and the allele for no freckles (1) is recessive. Assume that a homozygous recessive man and a heterozygous woman have a child. a. What is the woman's phenotype? 0.5 point b. Show the Punnett square for the cross. 1 point c. What is the child's probability of having freckles? 0.5 point
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are...
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are necessary for normal blood clotting. Hemophilia is caused by a recessive allele so use "XH” for normal and "Xh" for hemophilia. Since hemophilia is sex-linked, remember a woman will have two alleles (XX) but a man will have only one allele (XY). A woman who is heterozygous (a carrier) for hemophilia marries a normal man: a. What are the genotypes of the parents? b....
8. Dihybrid Genetics: In humans, Brown hair (R) is dominant while red hair (r) is recessive....
8. Dihybrid Genetics: In humans, Brown hair (R) is dominant while red hair (r) is recessive. Freckles (6) is dominant while no freckles (f) is recessive. % Harry Potter is homozygous dominant for freckles and heterozygous for red hair. What is his genotype? What is his phenotype? What gametes could he produce? Ginny Weasley is heterozygous for freckles and has red hair. What is her genotype? What is her phenotype? What gametes could she produce? What is the chance that...
GENETICS PROBLEMS 1. The gene for widow's peak (W) is dominant to the gene for straight hairline...
GENETICS PROBLEMS 1. The gene for widow's peak (W) is dominant to the gene for straight hairline (w). A male homozygote with widow's peak marries a female homozygote with straight hairline, what are the possible genotypic and phenotypic ratios of the F1 and F2 generations that may result from the union? Phenotype of Parents ………………………… x ………………………… Genotype of Parents ………………………… x ………………………… Genes in gametes ………………………… x ………………………… Genotype of F1 Generation ………………………… Phenotype of F1 Generation ………………………… Genes in F1 gametes ………………………… or ………………………… (Punnett Square)...
2. A widow's peak (W) is dominant to a straight hairline (w), and unattached earlobes (E) is dominant to attached earlobes (e). Two parents, each with the genotype WwEe, have kids. a. What proportion of their offspring will have a widow's peak and unattached earlobes? b. What proportion will have unattached earlobes but have either a widow's peak or a straight hairline? 3. A woman with normal color vision, whose mother was colorblind, has children with a man with normal...
Red-green color blindness is due to an X-linked recessive allele in humans. A widow's peak (a hairline that comes to a peak in the middle of the forehead) is due to an autosomal dominant allele. Consider the following family history: A man with a widow's peak and normal color vision marries a color-blind woman with a straight hairline. The man's father had a straight hairline, as did both of the woman's parents. Use the family history to make predictions about...
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...
need help with 1 and 2 please.
X-linked Recessive Traits Review X-linked traits in your textbook. 1 In cars, the Ballele produces black fur & b produces orange fur. This gene is X-linked (X & X". Both colors are expressed in heterozygotes calico). If alcat has 2 calico kittens, 1 male black kitten, and I female orange kitten, what is the ty p henotype of the father cat? (Hint: Work backwards & use a Punnett square Remember that not every...
Hemophilia is an X linked recessive condition in humans (Xh). Blood type (AB) is determined utilizing multiple alleles of I, two of which are codominant. A widow's peak is determined by a single dominant allele (W), while the recessive phenotype is a straight hairline. The ability to taste PTC is determined by a single dominant allele (T). while the recessive phenotype is a non-taster. Eugene is a non-taster male who does not have hemophilia. He has AB blood and a...
2. In humans, the allele for freckles (F) is dominant and the allele for no freckles (1) is recessive. Assume that a homozygous recessive man and a heterozygous woman have a child. a. What is the woman's phenotype? 0.5 point b. Show the Punnett square for the cross. 1 point c. What is the child's probability of having freckles? 0.5 point
6. Hemophilia is a sex-linked trait. A person with hemophilia is lacking certain proteins that are necessary for normal blood clotting. Hemophilia is caused by a recessive allele so use "XH” for normal and "Xh" for hemophilia. Since hemophilia is sex-linked, remember a woman will have two alleles (XX) but a man will have only one allele (XY). A woman who is heterozygous (a carrier) for hemophilia marries a normal man: a. What are the genotypes of the parents? b....
8. Dihybrid Genetics: In humans, Brown hair (R) is dominant while red hair (r) is recessive. Freckles (6) is dominant while no freckles (f) is recessive. % Harry Potter is homozygous dominant for freckles and heterozygous for red hair. What is his genotype? What is his phenotype? What gametes could he produce? Ginny Weasley is heterozygous for freckles and has red hair. What is her genotype? What is her phenotype? What gametes could she produce? What is the chance that...
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