Browse Reference Articles
51 to 60 of 1,029 articles
-
Tumor suppressor gene
A tumor suppressor gene is a gene that reduces the probability that a cell in a multicellular organism will turn into a tumor cell. A mutation or deletion of such a gene will increase the probability ... > more -
Fertility
Pregnancy and Childbirth
Mating and Breeding
Stem Cells
Sports Medicine
Attention Deficit Disorder
Spermatozoon
A spermatozoon or spermatozoan (pl. spermatozoa), and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote can grow into a new ... > more -
Bone fracture
A bone fracture is a medical condition in which a bone becomes cracked, splintered, or bisected as a result of physical trauma. In children, whose bones are still developing, there are risks of ... > more -
HPV vaccine
Human papillomavirus (HPV) vaccine research focuses on the prevention of diseases, such as cervical cancer and genital warts, caused by sexually transmitted human papillomaviruses. Of the more than ... > more -
Endocrine system
The endocrine system is a control system of ductless glands that secrete chemical messengers called hormones that circulate within the body via the bloodstream to affect distant organs. Hormones act ... > more -
Fertility
Pregnancy and Childbirth
Mating and Breeding
Healthy Aging
Attention Deficit Disorder
Sports Medicine
Artificial insemination
Artificial insemination (AI) is when sperm is placed into a female's ovarian follicle (intrafollicular), uterus (intrauterine), cervix (intracervical), or fallopian tubes (intratubal) using ... > more
Search ScienceDaily
Number of stories in archives: 138,609

