22 results found

Search Results for: gonad

Gonadotropin

Definition noun, plural: gonadotropins A polypeptide hormone secreted by the anterior pituitary and the placenta, and acts... Read More

Gonadal sex

Definition noun Sex as determined based on the gonadal tissue. Supplement In humans, the presence of testicular tissue... Read More

Gonad

Definition noun, plural: gonads The sex organ producing gametes. Supplement The gonads pertain to the anatomical part of the... Read More

Hermaphrodite

Definition noun (1) An organism (plant or animal) having both male and female reproductive organs. (2) An organism having... Read More

Sex gland

Definition noun, plural: sex glands A gland in which gametes are produced; the gonad. Supplement Sex glands pertain to the... Read More

Spermatogenesis

Spermatogenesis is the biological process of producing mature sperm cells, and occurs in the male gonad of a sexually... Read More

Endoplasmic reticulum

Definition noun plural: endoplasmic reticula (cell biology) A membrane-bound organelle that occurs as labyrinthine,... Read More

Spermatid

Definition noun, plural: spermatids (1) Any of the haploid cells formed by meiotic division of spermatocytes, and develops... Read More

Rete testis

Definition noun, plural: rete testes A network of tubules in the hilum of the testicle, and serves as passageway for sperm... Read More

Sex steroid

Definition noun, plural: sex steroids A steroid hormone that when bound to specific sex hormone receptor becomes active and... Read More

Spermatocytogenesis

Definition noun The initial stage of spermatogenesis in which the spermatogonia repeatedly divide by mitosis to produce a... Read More

Pangene

Definition noun, plural: pangenes (evolution) A hypothetical particle which acts as bearer of heritable character that can... Read More

Gemmule

Definition noun, plural: gemmules (botany) A small gemma; a bud produced by gemmation. (zoology) A mass of cell capable of... Read More

Spermiogenesis

Spermiogenesis definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

Cisterna

Definition noun plural: cisternae cis·ter·na, sɪˈstɜːnə (cell biology) The flattened membrane disk containing... Read More

Convoluted seminiferous tubule

Definition noun, plural: convoluted seminiferous tubules Any of the convoluted or curved canals of the seminiferous tubules... Read More

Sex hormone

Definition noun A hormone that is secreted by gonads and is involved in the regulation of sexual functions, such as the... Read More

Pangenesis

Definition noun A hypothetical mechanism for heredity proposed by Charles Darwin in which it holds that gemmules are shed... Read More

Splenunculus

Definition noun, plural: splenunculi Small nodule of splenic tissue that may be connected to or detached from the... Read More

Endocrine system

Definition noun The bodily system consists of the endocrine glands, and is responsible for the production and secretion of... Read More

Biogenesis

Definition noun plural: biogeneses (1) The process in which life forms arise from similar life forms (2) A theory that... Read More

Molecular Basis of Temperature-Dependent Gender of Red-Eared Slider Turtle

Imagine a child inside a womb with a sex yet to be decided not by the pair of sex chromosomes but by the ambient temperature... Read More