In which cells are the male sex hormones produced? What are those hormones? How is their production regulated? What is the male reproductive hormone? What is a hormone? What do hormones do for the cells and tissues of the body? What cell type secretes androgens (testosterone) in the tes...
What is the function of blastocoel? The blastocoel probably serves two major functions in frog embryos: (1) it permits cell migration during gastrulation, and (2) it prevents the cells beneath it from interacting prematurely with the cells above it. Which germ layer develops into bones? The ...
Erythrocyte--The mature hemoglobin containing cell of vertebrate blood; non-nucleated in mammals, the equivalent cell is nucleated in birds. Schizonts--A stage in the asexual life cycle of Plasmodium, covering the period from beginning of division of nuclear material until formation of mature merozoi...
The classes of teratogens include radiation, maternal infections, chemicals, and drugs. What is the meaning of zygote? zygote, fertilized egg cell that results from the union of a female gamete (egg, or ovum) with a male gamete (sperm). In the embryonic development of humans and other ...
Effect of co-trimoxazole prophylaxis on morbidity, mortality, CD4-cell count, and viral load in HIV infection in rural Uganda. Lancet. 2004;364:1428–34. Article CAS PubMed Google Scholar Walker AS, Ford D, Gilks CF, Munderi P, Ssali F, Reid A, et al. Daily co-trimoxazole ...
In animals, mitosis occurs in body cells to produce growth and repair and maintain body tissues. Each daughter cell is a genetic replica of the original cell. Meiosis occurs in sexual reproduction to generate variablegametes, or eggs and sperm, which unite to form a new individual different fro...