Make rules for X-linked recessive inheritance for below prompts. 1. If the mother is colorblind (3...
Make rules for X-linked recessive inheritance for below prompts.
1. If the mother is colorblind (3 rules-A, B, and C)…
A
B
C
2. If the father is colorblind…
3. A colorblind boy (XY)…
4. A colorblind girl (XX)…
Homework Answers
ANS:1 If the mother is colorblind .
A. if there are two copies of gene (mean on both X chromosomes)
B Males affected more often than female because gene present in the chromosome X.
C Inheritance of colorblindness by 100% of the male children when the mother is color blindness and father is normal.
ANS2: If the father is colorblind.
A. if mother is normal and father is colorblind then all the boy babies are normal.
B. all the girl babies are carrier with normal vision.
C. girl babies receive the recessive trait from their father.
ANS 3; A colorblind boy.
A. if both parents are color blind then all the boy (progeny) are colorblind.
B. if mother is carrier for colorblind and a father with normal vision where 50% chance of colorblindness in boy
C. sex of boy determine as XY. So, in human males the defect appear s in the presence of single recessive allele because Y chromosome of males does not carry any gene for color vision.
ANS4.A colorblind girl.
A. in female colorblindness appears only when both the sex chromosomes carry the recessive allele XcXc.
B .if both parents are colorblind then all the girl progeny will also colorblind.
C. if mother is carrier and father is colorblind, then 50% of the girls babies are colorblind
Add Answer to:
Make rules for X-linked recessive inheritance for below
prompts.
1. If the mother is colorblind (3...
Red-green color blindness is X-linked recessive. A woman with normal color vision has a father who...
Red-green color blindness is X-linked recessive. A woman with normal color vision has a father who is colorblind. The woman has a child with a man with normal color vision. What is the probability their child is a boy and is colorblind? A. 1/8 B. 1/4 C. 1/2 D. 3/4 E. 0
In humans, colorblindness is X-linked and recessive. A male with normal vision and a colorblind female mate. If their ch...
In humans, colorblindness is X-linked and recessive. A male with normal vision and a colorblind female mate. If their child is a girl, what is the chance that she is colorblind? 100% 25% 0% 50%
The possible modes of inheritance are autosomal dominant autosomal recessive X-linked recessive mitochondrial inheritance || ITQ...
The possible modes of inheritance are autosomal dominant autosomal recessive X-linked recessive mitochondrial inheritance || ITQ ? 11 2 3 4 23 TO O | 1 2 3 | | O ■ 2 3 2 3 4 5 Question 1 (12 marks) For the following pedigrees i. identify the most likely mode of inheritance, and ii. describe 2 features that fit with that mode of inheritance. 1 mark each 2 marks each The possible modes of inheritance are autosomal dominant...
Colorblindness and Hemophilia A are X-linked recessive conditions. A woman heterozygous for hemophila mutation and a...
Colorblindness and Hemophilia A are X-linked recessive conditions. A woman heterozygous for hemophila mutation and a colorblind man have a son who is haemophilic and has Klinefelter's syndrome (XXY). Which of the following nondisjunction events is the most compatible with the situation described? Please provide an explanation a. meiosis I, mother b. meiosis II, mother c. meiosis I, father d. meiosis II, father e. a and b
QUESTION 2 White eyes is an X-linked recessive mutation and curly wings is an autosomal dominant...
QUESTION 2 White eyes is an X-linked recessive mutation and curly wings is an autosomal dominant mutation in Drosophila. What proportion of red eyed, straight winged males is expected in the F2 starting with a true breeding white eyed, non-curly female mating with a true breeding male mutant only for curly. b3/16 Ос.О el e-1/32 QUESTION 3 Red-Green colorblindness is a X-linked recessive disorder. Huntington's is an autosomal dominant disorder. Susan's father is color blind and has Huntington's disease and...
In general, the following characteristics suggest (but do not prove) specific inheritance patterns: Autosomal recessive inheritance:...
In general, the following characteristics suggest (but do not prove) specific inheritance patterns: Autosomal recessive inheritance: -affected individuals can be born to unaffected parents -if both parents are affected, all children are affected -observable effect of relatedness (consanguinity) -horizontal" inheritance: trait appears at once among several members of one generation (siblings) *** Autosomal dominant inheritance each affected individual has an affected parent -when one parent is affected, transmission to the offspring (on average) *** -two unaffected parents do not transmit...
3. In humans Red-Green colorblindness is due to an X-linked recessive allele. A woman was diagnosed...
3. In humans Red-Green colorblindness is due to an X-linked recessive allele. A woman was diagnosed with colorblindness in her right eye, but nommal vision in her left eye. It is known that her father was colorblind and that her mother had normal vision. Explain how the phenomena of dosage compensation could explain this woman's condition.
20. You are a genetic counseler. A mother and father with a son and a daughter...
20. You are a genetic counseler. A mother and father with a son and a daughter come to see you. The mother and the father both have a very rare condition that no one has ever studied, but neither their son or their daugther does. Karyotype analysis shows that the mother and the daugther are XX and the father and the son are XY. You think about it and realize that this pattern cannot be due to a number of...
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...
Look carefully at the pedigrees below and: 1) indicate whether the transmission appears autosomal or sex-linked...
Look carefully at the pedigrees below and:
1) indicate whether the transmission appears autosomal or
sex-linked
2) indicate whether the transmission appears dominant or
recessive
3) provide at least two characteristics for each that support
your conclusion.
In general, the following characteristics suggest (but do not prove) specific inheritance patterns: Autosomal recessive inheritance: -affected individuals can be born to unaffected parents -if both parents are affected, all children are affected -observable effect of relatedness (consanguinity) -horizontal" inheritance: trait appears at...
The possible modes of inheritance are autosomal dominant autosomal recessive X-linked recessive mitochondrial inheritance || ITQ ? 11 2 3 4 23 TO O | 1 2 3 | | O ■ 2 3 2 3 4 5 Question 1 (12 marks) For the following pedigrees i. identify the most likely mode of inheritance, and ii. describe 2 features that fit with that mode of inheritance. 1 mark each 2 marks each The possible modes of inheritance are autosomal dominant...
QUESTION 2 White eyes is an X-linked recessive mutation and curly wings is an autosomal dominant mutation in Drosophila. What proportion of red eyed, straight winged males is expected in the F2 starting with a true breeding white eyed, non-curly female mating with a true breeding male mutant only for curly. b3/16 Ос.О el e-1/32 QUESTION 3 Red-Green colorblindness is a X-linked recessive disorder. Huntington's is an autosomal dominant disorder. Susan's father is color blind and has Huntington's disease and...
In general, the following characteristics suggest (but do not prove) specific inheritance patterns: Autosomal recessive inheritance: -affected individuals can be born to unaffected parents -if both parents are affected, all children are affected -observable effect of relatedness (consanguinity) -horizontal" inheritance: trait appears at once among several members of one generation (siblings) *** Autosomal dominant inheritance each affected individual has an affected parent -when one parent is affected, transmission to the offspring (on average) *** -two unaffected parents do not transmit...
3. In humans Red-Green colorblindness is due to an X-linked recessive allele. A woman was diagnosed with colorblindness in her right eye, but nommal vision in her left eye. It is known that her father was colorblind and that her mother had normal vision. Explain how the phenomena of dosage compensation could explain this woman's condition.
20. You are a genetic counseler. A mother and father with a son and a daughter come to see you. The mother and the father both have a very rare condition that no one has ever studied, but neither their son or their daugther does. Karyotype analysis shows that the mother and the daugther are XX and the father and the son are XY. You think about it and realize that this pattern cannot be due to a number of...
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...
Look carefully at the pedigrees below and:
1) indicate whether the transmission appears autosomal or
sex-linked
2) indicate whether the transmission appears dominant or
recessive
3) provide at least two characteristics for each that support
your conclusion.
In general, the following characteristics suggest (but do not prove) specific inheritance patterns: Autosomal recessive inheritance: -affected individuals can be born to unaffected parents -if both parents are affected, all children are affected -observable effect of relatedness (consanguinity) -horizontal" inheritance: trait appears at...
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