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Aneuploidy....

Aneuploidy.

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Addtion or deletion of one or two chromosomes in diploid chromosomal set is called aneuploidy. for example a human cell having 45 or 47 chromosomes instead of the usual 46.
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Pick out the correct statements. I. Haemophilia is a sex-linked recessive 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.

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.

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 autosomal recessive gene disorder . (d) Sickle cell anaemia is an X - linked recessive gene disorder

Match the items given in column I with appropriate items (one or more) of Column II: {:(,"Column I",,"Column II"),((1),"Morgan anc Castle",(a),"Sex linkage"),((ii),"Morgan",(b),"Transition/Transversions"),((iii),"Calvin mutation",(c),"Chromosome theory of Linkage"),((vi),"Gene mutation",(d),"Aneuploidy/polyploidy"),((v),"Chromosomal aberration",(e),"Genic balance theory of sex determination"),(,,(f),"Deltions/Insertions"):}

Pick out the correct statements (i) Haemophilia is a sex-linked recessive disease (ii) Down's syndrome is due to aneuploidy (iii) Phenylketonuria is an autosomal dominant gene disorder (iv) Phenylketonuria is an autosmal recessive gene disorder