If both parents are carriers for thalassaemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child? (a) 25% (b) 100% (c) No chance (d) 50%

If both parents are carriers for thalassaemia, which
is an autosomal recessive disorder, what are the
chances of pregnancy resulting in an affected child?
(a) 25% (b) 100%
(c) No chance (d) 50%
by

1 Answer

Answer :

25%
by

Related questions

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%

Description : 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%

Last Answer : (d) 25%

Down’s syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder? (a) 100% (b) 75% (c) 50% (d) 25%

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Last Answer : (c) 50%

.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%

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? (a) 100% (b) Zero percent (c) 25% (d) 50%

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%

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Last Answer : (3) Zero percent

A family of five daughter only is expecting sixth issue. The chance of its being a son is (a) zero (b) 25% (c) 50% (d) 100%.

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Last Answer : (c) 50%

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Last Answer : a) Huntington’s disease Because it is transmitted as an autosomal dominant genetic disorder, each child of a parent with HD has a 50% risk of inheriting the illness.

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Last Answer : all above

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Last Answer : a) Automosomal dominant inheritance An individual who has an autosomal dominant inherited condition carries a gene mutation for that condition on one chromosome of a pair.

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Last Answer : Answer : B

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

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

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Last Answer : (b) Sex-linked recessive

n the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree. (i) (ii) (iii) (iv) (a) Autosomal recessive (b) X-linked dominant (c) Autosomal dominant (d) X-linked recessive

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If a dwarf pea plant was treated with gibberellic acid, it became as tall, as tall pea plants. If these pea plants are crossed with pure tall pea plants, what will be the phenotypic ratio in F1 generation? (a) All dwarf plants (b) 50% tall and 50% dwarf plants (c) 75% tall and 25% dwarf plants (d) 100% tall plants

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A white woman marries a black man. They have four children — 2 sons and 2 daughters. What proportion of these chi 1dren is likely to be black (a) 25% (b) 50% (c) 100% (d) none

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Last Answer : c. 18%

Due to the cross between TTRr × ttrr the resultant progenies show what percent of tall, red flowered plants? (a) 50% (b) 75% (c) 25% (d) 100%

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Last Answer : (a) 50%

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Last Answer : b. 75%.

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If two brown haired parents, with recessive genes for blonde hair, have children, what are the chances of them having a blonde baby?

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Last Answer : ANSWER: 25%

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

Autosomal recessive?

Description : Autosomal recessive?

Last Answer : DefinitionAutosomal recessive is one of several ways that a trait, disorder, or disease can be passed down through families.An autosomal recessive disorder means two copies of an abnormal gene must be ... be defective to cause disease. People with only one defective gene in the pair are considered

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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Last Answer : Incomplete dominance

All are true about lesch-nyhan syndrome except (A) Produces self-mutilation (B) Genetic deficiency of the enzyme (C) Elevated levels of uric acid in blood (D) Inheritance is autosomal recessive

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Last Answer : Answer : B

Inheritance of primary gout is (A) Autosomal recessive (B) Autosomal dominant (C) X-linked recessive (D) X-linked dominant

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Last Answer : Answer : C

All the following statements about cystic fibrosis are correct except (A) It is inherited as an autosomal recessive disease (B) It affects a number of exocrine glands (C) It causes increased sweating (D) Sweat chlorides are above 60 mEq/L in this disease

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Which of the following is a characteristic feature of acute intermittent porphyria? 1) autosomal recessive inheritance 2) excessive faecal protoporphyrin excretion 3) excessive urinary porphobilinigoen between acute attacks 4) hypernatraemia during attacks 5) photosensitivity

Description : Which of the following is a characteristic feature of acute intermittent porphyria? 1) autosomal recessive inheritance 2) excessive faecal protoporphyrin excretion 3) excessive urinary porphobilinigoen between acute attacks 4) hypernatraemia during attacks 5) photosensitivity

Last Answer : Answers-3 Features of acute intermittent porphyria include urinary porphobilinogen excretion raised between attacks, hyponatraemia during an acute attack and autosomal dominant inheritance.

Which of the following is true of Gilbert's syndrome? 1) inheritance is autosomal recessive 2) serum conjugated bilirubin levels are elevated 3) serum bilirubin levels are decreased by fasting 4) serum bilirubin levels are decreased by liver enzyme inducers 5) there is bilirubinuria

Description : Which of the following is true of Gilbert's syndrome? 1) inheritance is autosomal recessive 2) serum conjugated bilirubin levels are elevated 3) serum bilirubin levels are decreased by fasting 4) serum bilirubin levels are decreased by liver enzyme inducers 5) there is bilirubinuria

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.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.

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Last Answer : (a) sex linked dominant

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

Description : 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 ... disease like haemophilia. (d) Inheritance of a sex-linked inborn error of metabolism like phenylketonuria

Last Answer : (a) Inheritance of a condition like phenylketonuria as an autosomal recessive trait.

Select the correct match. (a) Haemophilia – Y linked (b) Phenylketonuria – Autosomal dominant trait(c) Sickle cell anaemia – Autosomal recessive trait,chromosome -11 (d) Thalassemia – X linked

Description : Select the correct match. (a) Haemophilia – Y linked (b) Phenylketonuria – Autosomal dominant trait (c) Sickle cell anaemia – Autosomal recessive trait,chromosome -11 (d) Thalassemia – X linked

Last Answer : (c) Sickle cell anaemia – Autosomal recessive trait,chromosome -11

Cooling efficiency of a cooling tower is significantly affected under cross-wind condition and might decrease to……… in the range of moderate to high wind velocity condition. a) 50% c) 25% b) 75% d) 90%

Description : Cooling efficiency of a cooling tower is significantly affected under cross-wind condition and might decrease to……… in the range of moderate to high wind velocity condition. a) 50% c) 25% b) 75% d) 90%

Last Answer : 75%

A bacterial colony containing DNA made up of 100% N15 nitrogen bases is allowed to replicate in a medium containing N14 bases. After one round of replication the result would be a) All individuals will be identical to parents b) All individuals will be hybrids c) Only 50% individuals would be hybrids d) All individuals would have DNA made up of 100% N14

Description : A bacterial colony containing DNA made up of 100% N15 nitrogen bases is allowed to replicate in a medium containing N14 bases. After one round of replication the result would be a) All individuals ... Only 50% individuals would be hybrids d) All individuals would have DNA made up of 100% N14

Last Answer : b) All individuals will be hybrids

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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Last Answer : (4) Alzheimer's Disease Explanation: In an autosomal dominant disorder, the mutated gene is a dominant gene located on one of the nonsex chromosomes (autosomes). The early-onset form of Alzheimer ... the disorder. In most cases, an affected person inherits the altered gene from one affected parent.

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

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

Last Answer :  Alzheimer’s Disease

Of both normal parents, the chances of a male child becoming colour blind are (a) none (b) possible only when all the four grand parents had normal vision (c) possible only when father’s mother was colour blind (d) possible only when mother’s father was colour blind.

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Last Answer : (d) possible only when mother’s father was colour blind.

What is a recessive lethal genetic disorder?

Description : What is a recessive lethal genetic disorder?

Last Answer : Feel Free to Answer

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

Description : 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

Last Answer : Answer : A

Down Syndrome, a congenital genetic disorder in human beings, is cased by : (a) a defective recessive gene in homozygous condition (b) an extra x chromosome (c) trisomy of chromosome 18 (d) trisomy of chromosome 21

Description : Down Syndrome, a congenital genetic disorder in human beings, is cased by : (a) a defective recessive gene in homozygous condition (b) an extra x chromosome (c) trisomy of chromosome 18 (d) trisomy of chromosome 21

Last Answer : Ans:(d)

Which of the following most appropriately describes haemophilia? (a) Chromosomal disorder (b) Dominant gene disorder (c) Recessive gene disorder (d) X-linked recessive gene disorder

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Last Answer : (d) X-linked recessive gene disorder

Both husband and wife have normal vision though their fathers were colour blind. The probability of their daughter becoming colour blind is (a) 0% (b) 25% (c) 50% (d) 75%.

Description : Both husband and wife have normal vision though their fathers were colour blind. The probability of their daughter becoming colour blind is (a) 0% (b) 25% (c) 50% (d) 75%.

Last Answer : (a) 0%

The enrolment in higher education in India is contributed both by Formal System of Education and by System of Distance Education. Distance education contributes (A) 50% of formal system (B) 25% of formal system (C) 10% of the formal system (D) Distance education system’s contribution is not taken into account while considering the figures of enrolment in higher education

Description : The enrolment in higher education in India is contributed both by Formal System of Education and by System of Distance Education. Distance education contributes (A) 50% of formal system (B) ... 's contribution is not taken into account while considering the figures of enrolment in higher education

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If your company offers no credit terms, demand a. remains constant. b. falls 25%. c. falls 50%. d. falls 65%.

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Last Answer : d. falls 65%.

A marked price of a Chair is Rs 480. The seller offered the discount of 25% and gain 50%. If no discount is allowed, find his gain percentage?

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Those of you who finally lost the partner who gave you a million chances - what would you have done differently if you had known it really was the last chance?

Description : Those of you who finally lost the partner who gave you a million chances - what would you have done differently if you had known it really was the last chance?

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Those of you who finally lost the partner who gave you a million chances - what would you have done differently if you had known it really was the last chance?

Description : Those of you who finally lost the partner who gave you a million chances - what would you have done differently if you had known it really was the last chance?

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