Question

Match the following chromosomal abnormalities with their correct definitions: \[ \begin{array}{|c|c|} \hline \text{Chromosomal Abnormality} & \text{Definition} \\ \hline 1. \text{Monosomy} & D. \text{Presence of only one copy of a particular chromosome} \\ \hline 2. \text{Nullisomy} & B. \text{Absence of both homologous chromosomes} \\ \hline 3. \text{Trisomy} & A. \text{Presence of three copies of a particular chromosome} \\ \hline 4. \text{Tetrasomy} & C. \text{Presence of four copies of a particular chromosome} \\ \hline \end{array} \]

Hint:

Understanding chromosomal abnormalities is essential for diagnosing genetic disorders and assessing their impact on an organism's development.

Answer 1

Monosomy refers to the presence of only one copy of a particular chromosome instead of the usual pair. Nullisomy is the complete absence of both homologous chromosomes. Trisomy denotes having three copies of a specific chromosome, and tetrasomy indicates four copies of a particular chromosome.