Oct 22, 2025 · In the sexually mature human male, sperm cells are produced by the testes (singular, testis); they constitute only about 2 to 5 percent of the total semen volume.

Dec 1, 2025 · Genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, …

Nov 21, 2025 · Ejaculation, the release of sperm cells and seminal plasma from the male reproductive system. It takes place in two phases: in the first stage, sperm are moved from the …

Nov 13, 2025 · Sperm, male reproductive cell, produced by most animals. In higher vertebrates, especially mammals, sperm are produced in the testes. The sperm unites with (fertilizes) the …

SEMEN meaning: the sticky, whitish liquid containing sperm that is produced by a male's sex organs

genetics, study of heredity in general and of genes in particular. Genetics forms one of the central pillars of biology and overlaps with many other areas, such as agriculture, medicine, and …

1 ENTRIES FOUND: spunk (noun) spunk / ˈ spʌŋk/ noun Britannica Dictionary definition of SPUNK [noncount] 1 informal : spirit, courage, and determination

Nov 28, 2025 · A brief treatment of DNA follows. For full treatment, see genetics: DNA and the genetic code.

genetic engineering, the artificial manipulation, modification, and recombination of DNA or other nucleic acid molecules in order to modify an organism or population of organisms. The term …

The secretion of the seminal vesicles constitutes the bulk of the seminal fluid (semen). It is a thick fluid that contains the sugar fructose, proteins, citric acid, inorganic phosphorus, potassium, …