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Failure of segregation of chromatids dur...

Failure of segregation of chromatids during cell division results in the gain or loss of chromososmes, this is called as

A

euploidy

B

monoploidy

C

aneuploidy

D

polyploidy

Text Solution

Verified by Experts

The correct Answer is:
C
Aneuploidy (heteroploidy) is a condition of having fewer or extra chromosomes than the normal genome number of the species. Aneuploidy commonly arises due to non-disjunction of the two chromosomes of homologous pair so that one gamete comes to have an extra chromosome `(N+1)` while the other becomes deficient in one chromosome `(N-1)`
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Chromosomal disorders are caused due to absence or excess or abnormal arrangement of one or more chromosomes. Failure of segregation of chromatids during cell division cycle results in the gain or loss of a chromosome, and is called aneuploidy. Failure of cytokinesis after telophase stage of cell division results in an increase in a whole set of chromosomes in an organism and, this is known as polyploidy. There are a total number of .......... pairs of autosomes in a normal human cell.

Chromosomal disorders are caused due to absence or excess or abnormal arrangement of one or more chromosomes. Failure of segregation of chromatids during cell division cycle results in the gain or loss of a chromosome, and is called aneuploidy. Failure of cytokinesis after telophase stage of cell division results in an increase in a whole set of chromosomes in an organism and, this is known as polyploidy. Turner's syndrome is caused due to ............... of one of the X chromosome.

Name the event during cell division that results in the gain or loss of chromosome.

Read the following statemenets and choose the correct option I. Failure of segregation of chromatids duringt cell division results in aneuploidy (II) Chromposomal disorders are maninly determined buy alteration or mutation in a single gene (III) Thalassemia and cystic fibrosis are Mendelian disorders (IV) Sickle cell anameia is an X- linked trait ltbvrgt (V) Haemophilia is an autosome linked recessive disease

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