.A diseased man marries a normal woman. They get three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is (a) sex linked dominant (b) sex linked recessive (c) sex limited character (d) autosomal dominant.

.A diseased man marries a normal woman. They
get three daughters and five sons. All the daughters
were diseased and sons were normal. The gene of
this disease is
(a) sex linked dominant (b) sex linked recessive
(c) sex limited character (d) autosomal dominant.
by

1 Answer

Answer :

(a) sex linked dominant
by

Related questions

A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughters and 5 sons). Three of the sons suffer from the given disease but none of the daughters affected. Which of the following mode of inheritance do you suggest for this disease? (a) Sex-linked dominant (b) Sex-linked recessive (c) Sex-limited recessive (d) Autosomal dominant

Description : A man and a woman, who do not show any apparent signs of a certain inherited disease, have seven children (2 daughters and 5 sons). Three of the sons suffer from the given disease but none ... ? (a) Sex-linked dominant (b) Sex-linked recessive (c) Sex-limited recessive (d) Autosomal dominant

Last Answer : (b) Sex-linked recessive

A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls and 5 normal sons. It may be which type of genetic disease? (a) Sex-influenced disease (b) Blood group inheritance disease (c) Sex-linked disease (d) Sex-recessive disease

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Last Answer : (c) Sex-linked disease

A woman with two genes for haemophilia and one gene for colour blindness on one of the ‘X’ chromosomes marries a normal man. How will the progeny be? (a) 50% haemophilic colour-blind sons and 50% normal sons. (b) 50% haemophilic daughters (carrier) and 50% colour blind daughters (carrier). (c) All sons and daughters haemophilic and colour- blind. (d) Haemophilic and colour-blind daughters.

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Last Answer : (b) 50% haemophilic daughters (carrier) and 50% colour blind daughters (carrier).

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Last Answer : (b) (1), (2) and (3) are correct.

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Last Answer : Ans:(d)

Study the pedigree chart given below. What does it show? (a) Inheritance of a condition like phenylketonuria as an autosomal recessive trait. (b) The pedigree chart is wrong as this is not possible. (c) Inheritance of a recessive sex-linked disease like haemophilia. (d) Inheritance of a sex-linked inborn error of metabolism like phenylketonuria

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.A person whose father is colour blind marries a lady whose mother is daughter of a colour blind man. Their children will be (a) all sons colour blind (b) some sons normal and some colour blind (c) all colour blind (d) all daughters normal.

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Last Answer : (d) all daughters normal.

What type of inheritance pattern (are the A and B alleles to each other (Autosomal dominant-Regular dominant-recessive relationship, X linked, co-dominant, incomplete dominant)?

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Select the incorrect statement with regard to haemophilia. (a) It is a dominant disease.(b) A single protein involved in the clotting of blood is affected. (c) It is a sex-linked disease. (d) It is a recessive disease.

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.If a colour blind woman marries a normal visioned man, their sons will be (a) all colour blind (b) all normal visioned (c) one-half colour blind and one-half normal (d) three-fourths colour blind and one-fourth normal.

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$ Haemophilia is a sex linked disease ! Haemophilia is due to a recessive gene.

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A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by (a) only daughters (b) only sons (c) only grandchildren (d) both sons and daughters

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A marriage between normal visioned man and colour blind woman will produce offspring (a) colour blind sons and 50% carrier daughter (b) 50% colourblind sons and 50% carrier daughter (c) normal males and carrier daughters (d) colour blind sons and carrier daughters.

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Last Answer : (c) one X-chromosome of mother

Which of the following statement(s) is/are true concerning hemophilia A? a. Hemophilia A is inherited as a sex-linked recessive deficiency of factor VIII b. A positive family history for bleeding disorders present in all patients c. Laboratory tests reveal a prolongation of aPTT, prothrombin time (PT), thrombin clotting time and platelet aggregation d. Spontaneous bleeding is unusual with factor VIII levels greater than 10% of normal

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. Sickle-cell anaemia is (a) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin (b) caused by a change in a single base pair of DNA (c) characterized by elongated sickle like RBCs with a nucleus (d) an autosomal linked dominant trait.

Description : . Sickle-cell anaemia is (a) caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin (b) caused by a change in a single base pair of DNA (c) characterized by elongated sickle like RBCs with a nucleus (d) an autosomal linked dominant trait.

Last Answer : (b) caused by a change in a single base pair of DNA

In autosomal recessive inheritance: a. the rarer the trait the higher the possibility of marriages within the same family b. most recessive gene defects cause problem through failure to produce functional protein c. both males and females are affected equally severely d. all above

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The genes, which remain confined to differential region of ‘Y’ chromosome, are: (a) Autosomal genes (b) Holandric genes (c) Sex linked genes (d) Mutant genes

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Last Answer : Ans. ((b))

The genes, which remain confined to differential region of Y-chromosome, are (a) autosomal genes (b) holandric genes (c) completely sex-linked genes (d) mutant genes.

Description : The genes, which remain confined to differential region of Y-chromosome, are (a) autosomal genes (b) holandric genes (c) completely sex-linked genes (d) mutant genes.

Last Answer : b) holandric genes

Which one is the incorrect statement with regard to the importance of pedigree analysis? (a) It confirms that DNA is the carrier of genetic information. (b) It helps to understand whether the trait in question is dominant or recessive. (c) It confirms that the trait is linked to one of the autosome. (d) It helps to trace the inheritance of a specific trait.

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Last Answer : (a) It confirms that DNA is the carrier of genetic information.

.A normal-visioned man whose father was colour- blind, marries a woman whose father was also colour-blind. They have their first child as a daughter. What are the chances that this child would be colour-blind? (a) 100% (b) Zero percent (c) 25% (d) 50%

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Last Answer : Zero percent

A normal-visioned man whose father was colour-blind, marries a woman whose father was also colour-blind. They have their first child as a daughter. What are the chances that this child would be colour-blind ? (1) 50% (2) 100% (3) Zero percent (4) 25%

Description : A normal-visioned man whose father was colour-blind, marries a woman whose father was also colour-blind. They have their first child as a daughter. What are the chances that this child would be colour-blind ? (1) 50% (2) 100% (3) Zero percent (4) 25%

Last Answer : (3) Zero percent

The colour blindness is more likely to occur in males than in females because (a) the Y-chromosome of males have the genes for distinguishing colours (b) genes for characters are located on the sex- chromosomes (c) the trait is dominant in males and recessive in females (d) none of these.

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Last Answer : (b) genes for characters are located on the sex- chromosomes

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Last Answer : Males inherit them only from their mothers -apex

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Last Answer : Answer : A

Lesch-Nyhan syndrome, the sex linked recessive disorder is due to the lack of the enzyme: (A) Hypoxanthine-guanine phosphoribosyl transferse (B) Xanthine oxidase (C) Adenine phosphoribosyl transferase (D) Adenosine deaminase

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Last Answer : Answer : A

How is analyzing the inheritance patterns of sickle cell disease through pedigrees allowed scientists to determine that the disease is autosomal recessive?

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Last Answer : Feel Free to Answer

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Last Answer : Answer : C

All of the following statements about Tangier disease are true except (A) It is a disorder of HDL metabolism (B) Its inheritance is autosomal recessive (C) Apoproteins A-I and A-II are not synthesised (D) Plasma HDL is increased

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Last Answer : Answer : D

Albinism is known to be due to an autosomal recessive mutation. The first child of a couple with normal skin pigmentation was an albino. What is the probability that their second child will also be an albino? (a) 50% (b) 75% (c) 100% (d) 25%

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.Haemophilic man marries a normal woman. Their offspring will be (a) all haemophilic (b) all boys haemophilic (c) all girls haemophilic (d) all normal

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Last Answer : (d) all normal.

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Last Answer : b) 0.25

If a colour-blind man marries a woman who is homozygous for normal colour vision, the probability of their son being colour-blind is (a) 0 (b) 0.5 (c) 0.75 (d) 1.

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Last Answer : a) 0

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Last Answer : (c) only one allele for each gene in the individual

Sex-linked dominant?

Description : Sex-linked dominant?

Last Answer : DefinitionSex-linked dominant is a rare way that a trait or disorder can be passed down through families. A single abnormal gene on the X chromosome can cause a sex-linked dominant disease. ... are inherited through one of the sex chromosomes (the X or Y chromosome).Dominant inheritance occurs

All the following statements about xeroderma pigmentosum are true except (A) It is a genetic disease (B) Its inheritance is autosomal dominant (C) uvr ABC excinuclease is defective in this disease (D) It results in multiple skin cancers

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Which of the following is a Dominant Autosomal Disorder? (1) Albinism (2) Cystic Fibrosis (3) Phenyl Ketorunia (4) Alzheimer's Disease

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