The number and appearance of chromosomes in a cell is called a karyotype. A karyotype can only be seen and studied with a microscope. To make karyotypes easier to understand, karyograms are often made. In karyograms, homologous chromosomes are put side by side and then arranged by size.
A zigzag stitch is a great way to seam knit fabrics. Its inherent stretch allows for the fabric to stretch and move without fear of popping a seam. On light to medium weight knits, try using a stitch length of 1.5 and a width of 5. This setting closely mimics the look and function of an overlock stitch.
In Combined knitting, the orientation on knit stitches is Western and on purl stitches it's Eastern. No matter what your knitting style, you always enter the stitch through the right leg of the stitch. So for Combined knitting, you work a knit stitch through the back loop of the stitch. The needle goes straight through the back loop, from right to left.