What term describes a picture (classification) of chromosomes in the nucleus, arranged in numerical order to determine their number and structure?

• A. Chromatids
• B. Genome
• C. Karyotypes
• D. Chromosomes

Answer: (C)

Think of a karyotype as the organized snapshot of all the chromosomes inside a cell. It’s a picture where the chromosomes are arranged in numerical order in the nucleus to show how many there are and what their structure looks like. This ordered display helps detect chromosomal abnormalities, like an extra copy or a missing chromosome. Chromatids are the duplicated halves of a chromosome, not the counting image. The genome is the complete set of genetic material, not this specific ordered picture. Chromosomes are the individual structures themselves, not the arranged display used to determine number and structure.