1. 23 pairs of chromosomes.
2. Paired chromosomes are similar in size, shape, and banding pattern; they carry genes for the same traits at corresponding loci.
9. The sex is male, as indicated by the presence of one X and one Y chromosome in the 23rd pair.
4. These light and dark bands are regions of differing chromatin density, representing areas of gene-rich (light) and gene-poor (dark) DNA segments.
5. The trend is a general decrease in chromosome size from chromosome 1 to chromosome 22.
6. Larger chromosomes generally contain more genes due to their greater DNA content, while smaller chromosomes typically contain fewer genes.
7. 22 pairs of numbered chromosomes.
Parent Tip: Review the logic above to help your child master the concept of karyotype worksheet answers.
