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..
To sum it all up â when companion planting: 1  Beans: Don't plant near chives, garlic, leeks, onions, peppers, marigolds. 2  Peas: Don't plant near chives, garlic, leeks, onions, peppers. 3  Broccoli and Cauliflower: Don't plant near peppers, squash, strawberries, tomatoes. 4  Tomatoes: Don't plant near broccoli, cauliflower, cilantro, cucumbers.