199 results found

Search Results for: embryo

Embryo

Definition noun, plural: embryos (zoology) A multicellular organism that primarily undergoes extensive and rapid growth and... Read More

Laboratory Studies of Vertebrate and Invertebrate Embryos: Guide & Atlas of Descriptive & Experimental Development (8th Edition)

Laboratory Studies of Vertebrate and Invertebrate Embryos: Guide & Atlas of Descriptive & Experimental Development... Read More

Manipulating the Mouse Embryo: A Laboratory Manual

 Manipulating the Mouse Embryo: A Laboratory Manual      ... Read More

Embryo technology

Embryo technology refers to the manipulation of mammalian embryos, for example, cloning, embryo splitting, in vitro... Read More

Double Fertilization: Embryo and Endosperm Development in Flowering Plants

Double Fertilization: Embryo and Endosperm Development in Flowering Plants   ... Read More

Parthenogenesis

To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More

Zygote

Zygote Definition What is a zygote? A zygote is a fertilized eukaryotic cell. In biology, medical science, and other allied... Read More

Cloning

Definition noun The process of creating an exact copy of a biological unit (e.g. a DNA sequence, cell, or organism) from... Read More

Embryo resorption

Embryo resorption death and resorption of the embryo that takes place at any developmental stage after ovum implantation and... Read More

Nucellar embryony

Definition noun A form of apomixis where a nucellar embryo arises from the diploid nucellus tissue surrounding the embryo... Read More

Embryo sac

Large oval cell in nucellus of ovule, in which fertilization of the egg cell and development of the embryo take... Read More

Adventitious embryony

Definition noun A form of apomixis where a nucellar embryo arises from the diploid nucellus tissue surrounding the embryo... Read More

Embryo – Plants

Definition (botany) A young, developing plant, such as the rudimentary plant inside the seed of higher plants or that inside... Read More

Proembryo

proembryo (Science: botany) The series of cells formed in the ovule of a flowering plant after fertilization, but before the... Read More

Why Embryonic Stem Cell Use is Unethical

By Vicki Mozo Embryonic Stem Cell research offers a remarkable way to treat various disorders where conventional... Read More

Angiosperm

Angiosperms Definition What is an angiosperm? An angiosperm is a plant that produces flowers. The angiosperms, also... Read More

Teratogenesis

Definition noun The development of structural or functional malformations in an embryo or a fetus Supplement Abnormalities... Read More

Sexual reproduction

Sexual reproduction is a mode of reproduction involving the fusion of haploid female gamete (egg cell) and haploid male... Read More

Parental chromosomes are together but still apart at first mitosis

A recent finding by a team of researchers from European Molecular Biology Laboratory on the parental chromosomes during the... Read More

Embryotoxin

Embryotoxin this describes any chemical which is harmful to an... Read More

Amnion

Definition noun, plural: amnions The innermost membrane of the extraembryonic or the fetal membranes of amniotes surrounding... Read More

Embryology

Embryology (Science: study) The study of the embryo and its development from a single-celled zygote (fertilized ovum) to the... Read More

Maternal-effect gene

Definition noun, plural: maternal-effect genes (1) A gene from the mother's genome in which its phenotype in the zygote is... Read More

Embryogenesis

Embryogenesis The processes leading to the development of an embryo from egg to completion of the embryonic... Read More

Seed

Definition noun, plural: seeds (botany) An encapsulated plant embryo; a fertilized ovule of a plant Supplement A seed is a... 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

Pseudogamy

Definition noun (1) A form of parthenogenesis wherein the sperm stimulates the egg cell to develop into an embryo without... Read More

Allantois

Definition noun, plural: allantoises or allantoides An embryonic diverticulum of the hindgut of reptiles, birds, and... Read More

Maternal gene

Definition noun, plural: maternal genes (1) A gene from the mother's genome in which its expression on the phenotype of the... Read More

Bicoid

Definition noun (1) A kind of maternal-effect gene (as in bicoid gene) whose function is to code for products used for... Read More

Asexual reproduction

Asexual Reproduction Definition What is asexual reproduction? Asexual reproduction is a mode of reproduction that does not... Read More

Fetal membrane

Definition noun, plural: fetal membranes A membrane surrounding the embryo or fetus and is involved in nutrition,... Read More

Amniotic sac

Definition noun, plural: amniotic sacs Fluid-filled sac where the embryo or fetus is suspended in the uterus or in the of... Read More

Seedling

Definition noun, plural: seedlings (botany) A young sporophyte that grows from a seed; a (recent) sprout Supplement A... Read More

Yolk sac

Definition noun, plural: yolk sacs A membranous sac formed by the hypoblast and encases the yolk of eggs in bony fishes,... Read More

Viable

Viable definition In biology, the word viable pertains to a life form, such as a cell, that is alive or capable of... Read More

Totipotent cell

Definition noun The cell that is capable of developing into any cell type. Supplement In a developing embryo, totipotent... Read More

Chorion

Definition noun, plural: chorions (embryology) An extraembryonic membrane surrounding the embryo or the fetus of... Read More