Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
Read the following statements and choose the correct option.
Failure of segregation of chromatids during cell division results in aneuploidy.
Chromosomal disorders are mainly determined by alteration or mutation in a single gene.
Thalassemia and cystic fibrosis are Mendelian disorders.
Sickle cell anaemia is an X-linked trait.
Haemophilia is an autosome linked recessive disease.
Options:
Answer:
Solution:
Due to failure of segregation of chromatids one daughter cell carries one more chromosome whiledaughter cell carries one less chromosome, both these conditions are included in aneuploidy. Mendelian disorders are caused due to gene mutation like Thalessemia, cystic fibrosis etc. Haemophilia is an X-linked recessive disorder while Sickle cell anemia is autosomal recessive genetic disorder.
