Q. I. Myotonic dystrophy is an autosomal dominant trait II. Sickle-cell anaemia is an autosomal recessive trait III. Failure of segregation of alleles results in chromosomal loss IV. Failure of segregation of allele result in chromosomal gain V. Cystic fibrosis is a Mendelian disorder Correct statements are
A) I, II, III and IV
B) I, III, IV and V
C) I, II, IV and V
D) All of these
Explanation
Correct statements are (i) Myotonic dystrophy is an autosomal dominant trait (ii) Sickle-cell anaemia is autosomal recessive disease (iii) Failure segregation result in chromosomal loss and gain. One daughter cell get one extrachromosome and other gets one less chromosome (iv) Cystic fibrosis is Mendelian disorder
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.