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Sickle cell anaemia is :...

Sickle cell anaemia is :

A

Characterized by elongated sickle like RBXs with a nucleus

B

An autosomal linked cominant trait

C

Caused by substituation of valine by glutamic acid in the beta globin chain of haemoglobin

D

Caused by a change in a single base pair of DNA

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The correct Answer is:
D
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Pick out the correct statements a. Haemophilia is a sex linked recesive disease b. Down's syndrome is due to aneuploidy c.Phenylketonuria is an autosomal recessive gene disorder d.Sickle cell anaemia is a X-linked recessive gene disorder

Pick out the correct statements (A) Haemophilia is a sex-linked recessive disease (B) Down's syndrome is due to aneuploidy (C) Phenylketonuria is an autosmal recessive gene disorder (D) Sickle cell anaemia is a x-linked recessive gene disorder

Sickle cell anemia is

Sickle cell anemia is

Pick out the correct statements: (i) Haemophilia is a sex-linked recissive disease. (ii) Down's syndrome is due to aneuploidy. (iii) Phenylketonuria is an autosomal recessive gene disorder. (iv) Sickle cell anaemia is an X-linked recessive gene disorder.

Read the following statement s and choose the correct option In phenylketonuria the affected person does not secrete the enzyme to convert phenylalanine to tyrosine (II)Possibility of male becoming haemophiliac is extremely rare (III) Sickle cell anaemia is caused by the substitution of glutamic acid by valine at fifth position of beta chain of haemoglobin (IV) Myotonic dystrophy is an autosomal dominant trait

Sickle cell anemia is an example of

Given below is the pedigree of sickle cell anaemia, in a family In this the RBC both parents will be -

(a) Sickle cell anaemia in humans is a result of point mutation. Explain. (b) Write the genotypes of both the parents who have produced a sickle cell anaemic offspring.

Pick out the correct statement (I) Haemophilia is a sex-linked recessive disease (II) Down's syndrome is due to aneuploidy (III) Phenylketonuria is an autosomal recessive gene disorder lt brgt (IV) Sickle-cell anaemia is an X-linked recessive gene disorder

ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-II (PREVIOUS YEAR QUESTIONS
  1. Which of the following bond is not related to nucleic acid :

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  2. Haploids are more suitable for mutation studies than the diploids. Thi...

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  3. Sickle cell anaemia is :

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  4. The most popularly known blood grouping is the ABO grouping. It is nam...

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  5. Select the incorrect statement from the following

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  6. Study the pedigree chart given below what does it show?

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  7. What is not true for genetic code?

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  8. Removal of introns and joining the exons in a defined order in a trans...

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  9. Semiconservative replication of DNA was first demostracted in

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  10. Whose experiments cracked the DNA and discovered unequivocally that a ...

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  11. Point mutation involves

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  12. The genotype of a plant showing the dominant phenotype can be determin...

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  13. Which one of the following cannot be explained on the basis of Mendel'...

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  14. ABO blood groups in human beings are controlled by the gene I. The gen...

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  15. Select the correct statement from the ones given below with respect to...

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  16. Select the two correct statements out of the four given below about la...

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  17. Which one of the following symbols and its representation, used in hum...

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  18. Satellite DNA is useful tool in ;

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  19. The one aspect which is not a salient feature of genetic code, it its ...

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  20. Which one of the following does not follow the central dogma of molecu...

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