Homework Answers
Pedigree
Pedigree is the chart which represents the data of traits or characters which runs in family or generation. Using pedigree data it is possible to determine if the trait is autosomal/sex linked/dominant or recessive. Autosomal trait is the trait which is due to genes present on autosomes whereas sex linked traits or allosomal trait is due to genes present on sex chromosomes. By studying the pattern followed by autosomal and allosomal traits passing through generation it is possible to determine if the trait is autosomal or sex linked.
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What data or test would you seek to determine whether or not a trait is sex...
Test your understanding of pedigrees by completing each sentence. Test your understanding of pedigrees by completing...
Test your understanding of pedigrees by completing each
sentence.
Test your understanding of pedigrees by completing each sentence. dominant dominant is a chart of a family's history with regard to a aneuploid particular genetic trait. karyotype In a pedigree __ are designated by squares and by circles. sex-linked If a particular genetic trait is , then every child exhibiting the trait will also have at least one parent exhibiting the trait. pedigree DNA fingerprint If a particular genetic trait is...
1. Explain what a test-cross is and what it is used for. Outline the steps of...
1. Explain what a test-cross is and what it is used for. Outline the steps of a testcross and predict/interpret possible outcomes 2. Explain the Hershey-Chase experiment and how it showed DNA was the molecule of heredity 3. Using the pedigree determine whether the trait indicated is autosomal orx-linked, and whether it is recessive or dominant. Justify your answers
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....
^^^ 2. How would you tell whether a novel trait is sex-influenced or sex-limited? Compare the...
^^^ 2. How would you tell whether a novel trait is
sex-influenced or sex-limited? Compare the F2 generation tables and
write a sentence describing the difference between sex-limited and
sex-influenced.
In males : B+B+ beardless, B+b^b is bearded, B^b B^b is
bearded.
In females: B+B+ is beardless, B+b^b is beardless and B^bB ^b is
bearded.
HH is hen feathering in both males and females; Hh is hen
feathering in both males and females; and hh in males- cock
feathering and...
For the following pedigree (Pedigree Tree I, used for following questions, too), decide whether a trait...
For the following pedigree (Pedigree Tree I, used for following questions, too), decide whether a trait is inherited as an autosomal dominant, autosomal recessive, or X-linked recessive. 2 10 11 po og po 0000 TO 1 2 3 4 5 12 13 14 Autosomal dominant Most likely autosomal recessive Most likely X-linked recessive Autosomal recessive X-linked recessive Either autosomal recessive or X-linked recessive QUESTION 4 (Pedigree Tree 1) What is the genotype of Generation individual 12 АА ОАа Оаа Either...
Sex Linked Traits 4. Assume you are a genetic counselor and a couple comes to you...
Sex Linked Traits 4. Assume you are a genetic counselor and a couple comes to you for counseling They want to know if there is any chance that their first baby might have muscular dystrophy. M.D. is a sex linked recessive trait. Neither of the parents has M.D. but the wife's father has M.D. Prove your answer by showing the genotypes and phenotypes of the parents, grandparents and possible offspring. Parents Fill in the boxes Genotype Phenotype Possible Genotypes or...
please answer as much of the questions as you can and not only one question: 1....
please answer as much of the questions as you can and not only
one question:
1. What is the pseudoautosomal region?
The region on the Y chromosome where the male-determining gene
is found
The region on the X chromosome where the female-determining gene
is found
A region on the Y chromosome where the gene, when mutated,
causes androgen insensitivity syndrome
A region at which the X and Y chromosomes both have copies of
the same genes
A region at which...
Help with genetics short answer.. a) how would you set up a test cross to determine...
Help with genetics short answer.. a) how would you set up a test cross to determine if a gene was Y or X linked? show with a punnett square to answer the question. How would the outcome be different if the gene was sex limited?
HELP WITH GENETICS PLEASE!!!***Sex Linkage Questions In humans, colorblindness is a sex-linked trait. Jordan and Jill...
HELP WITH GENETICS PLEASE!!!***Sex Linkage Questions In humans, colorblindness is a sex-linked trait. Jordan and Jill are a married couple with two sons, Jordan Jr. and James. James is colorblind, but none of James’ grandparents are colorblind and neither is Jordan Jr. Jordan and Jill have a third child, a daughter name Jess. Jess is colorblind just like her brother James. Given this information, answer the following questions. 1.) What chromosome is the gene for colorblindness located on? Explain why...
Section 4: Sex ratio variation You want to test whether the sex ratio for a species of birds is constant, or if there can be variation among nests in the probability that a chick is female. To...
Section 4: Sex ratio variation You want to test whether the sex ratio for a species of birds is constant, or if there can be variation among nests in the probability that a chick is female. To do this, you look at nests with 3 chicks in them, counting the number of females in each. You obtain the results in the table below. Number of female chicks in nest Number of nests 32 23 65 33 A) What are the...
Test your understanding of pedigrees by completing each
sentence.
Test your understanding of pedigrees by completing each sentence. dominant dominant is a chart of a family's history with regard to a aneuploid particular genetic trait. karyotype In a pedigree __ are designated by squares and by circles. sex-linked If a particular genetic trait is , then every child exhibiting the trait will also have at least one parent exhibiting the trait. pedigree DNA fingerprint If a particular genetic trait is...
1. Explain what a test-cross is and what it is used for. Outline the steps of a testcross and predict/interpret possible outcomes 2. Explain the Hershey-Chase experiment and how it showed DNA was the molecule of heredity 3. Using the pedigree determine whether the trait indicated is autosomal orx-linked, and whether it is recessive or dominant. Justify your answers
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....
^^^ 2. How would you tell whether a novel trait is
sex-influenced or sex-limited? Compare the F2 generation tables and
write a sentence describing the difference between sex-limited and
sex-influenced.
In males : B+B+ beardless, B+b^b is bearded, B^b B^b is
bearded.
In females: B+B+ is beardless, B+b^b is beardless and B^bB ^b is
bearded.
HH is hen feathering in both males and females; Hh is hen
feathering in both males and females; and hh in males- cock
feathering and...
For the following pedigree (Pedigree Tree I, used for following questions, too), decide whether a trait is inherited as an autosomal dominant, autosomal recessive, or X-linked recessive. 2 10 11 po og po 0000 TO 1 2 3 4 5 12 13 14 Autosomal dominant Most likely autosomal recessive Most likely X-linked recessive Autosomal recessive X-linked recessive Either autosomal recessive or X-linked recessive QUESTION 4 (Pedigree Tree 1) What is the genotype of Generation individual 12 АА ОАа Оаа Either...
Sex Linked Traits 4. Assume you are a genetic counselor and a couple comes to you for counseling They want to know if there is any chance that their first baby might have muscular dystrophy. M.D. is a sex linked recessive trait. Neither of the parents has M.D. but the wife's father has M.D. Prove your answer by showing the genotypes and phenotypes of the parents, grandparents and possible offspring. Parents Fill in the boxes Genotype Phenotype Possible Genotypes or...
please answer as much of the questions as you can and not only
one question:
1. What is the pseudoautosomal region?
The region on the Y chromosome where the male-determining gene
is found
The region on the X chromosome where the female-determining gene
is found
A region on the Y chromosome where the gene, when mutated,
causes androgen insensitivity syndrome
A region at which the X and Y chromosomes both have copies of
the same genes
A region at which...
Section 4: Sex ratio variation You want to test whether the sex ratio for a species of birds is constant, or if there can be variation among nests in the probability that a chick is female. To do this, you look at nests with 3 chicks in them, counting the number of females in each. You obtain the results in the table below. Number of female chicks in nest Number of nests 32 23 65 33 A) What are the...
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