In the C and C++ programming languages, #pragma once is a non-standard but widely supported preprocessor directive designed to cause the current source file to be included only once in a single compilation.
Best Answer: In humans, you would find 23 chromosomes in a sperm cell; 23 chromosomes in an egg cell; and 46 chromosomes in a white blood cell. All human body cells contain 46 chromosomes (two sets of 23 chromosomes). Only the gametes (i.e., the sperm & eggs) contain 23 chromosomes (one set of 23 chromosomes) because two gametes combine to form a new person with 46 chromosomes in his body cells. Body cells grow and reproduce by the process of mitosis.
Yes, they do. During fertilization, the nucleus of the sperm and ova fuse to form a complete cell. Remember, the chromosome number in a sperm cell or ovum is half the normal n â¦ umber, or haploid.11 people found this useful.he sperm nucleus (in animals) contains the haploid chromosome set of the parent father. The egg or ovum carries the other half of the chromosome set from the parent mother. O â¦ n fertilisation the two sets fuse and a full set of chromosomes forms (diploid).