Failure of segregation of chromatids during cell division-cycle results in the gain or loss of chromosome called aneuploidy. Aneuploidy occurs due to addition or deletion. Hence only (B) and (C) are correct
NEET UG 2024 — Zoology Principles of Inheritance and Variation
Aneuploidy is a chromosomal disorder where chromosome number is not the exact copy of its haploid set of chromosomes, due to : A. Substitution B. Addition C. Deletion D. Translocation E. Inversion Choose the most appropriate answer from the options given below :
Held on 30 Apr 2024 · Verified 9 Jul 2026.
C and D only
D and E only
A and B only
B and C only
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What is the pattern of inheritance for polygenic trait?
Genes $R$ and $Y$ follow independent assortment. If RRYY produce round yellow seeds and rryy produce wrinkled green seeds, what will be the phenotypic ratio of the F2 generation?
With the help of given pedigree, find out the probability for the birth of a child having no disease and being a carrier (has the disease mutation in one allele of the gene) in $F_3$ generation. 
Match List-I with List-II: \begin{array}{llll} List-I & List-II \\Type of Inheritance & Example \\A.Incomplete dominance & I. Blood groups in human \\B.Co-dominance & II. Flower colour in Antirrhinum \\C.Pleiotropy & III. Skin colour in human \\D.Polygenic inheritance & IV.Phenylketonuria\end{array} Choose the correct answer from the options given below:
Given below are two statements: Statement I: Failure of segregation of chromatids during cell cycle resulting in the gain or loss of whole set of chromosome in an organism is known as aneuploidy. Statement II: Failure of cytokinesis after anaphase stage of cell division results in the gain or loss of a chromosome is called polyploidy. In the light of the above statements, choose the correct answer from the options given below:
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