Females have two copies of the X chromosome, while males have one X and one Y chromosome. The 22 autosomes are numbered by size. The other two chromosomes, X and Y, are the sex chromosomes. This picture of the human chromosomes lined up in pairs is called a karyotype.In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46.Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ between males and females.emales have two copies of the X chromosome, while males have one X and one Y chromosome. The 22 autosomes are numbered by size. The other two chromosomes, X and Y, are the sex chromosomes. This picture of the human chromosomes lined up in pairs is called a karyotype.
In the book Carrots Love Tomatoes it says Don't plant tomatoes near corn because the tomato and corn earworm are identical..
Plant corn alongside of beans, parsley, peas and potatoes---with a benefit to all. Squash, cucumber, melon and pumpkin plants are also complementary vegetable companions for corn. Tomatoes and corn are both attacked by the same worm, so avoid planting them too close together in the vegetable garden. Radishes grow well alongside lettuce, peas, beans and cucumber. They are also complemented by a planting of carrots. Chives will improve the flavor and growth of carrots. Other complementary plants for carrots are onion, lettuce, bean, pepper, radish, tomato and peas.