Developmental biology

(genetics) the diploid cell resulting from the union of a haploid spermatozoon and ovum (including the organism that develops from that cell)

differentiation and growth of the structure of an organism (or a part of an organism)

an undifferentiated cell whose daughter cells may differentiate into other cell types (such as blood cells)

(genetics) the diploid cell resulting from the union of a haploid spermatozoon and ovum (including the organism that develops from that cell)

blood forming stem cells in the bone marrow; T cells and B cells arise from these stem cells

(genetics) an organism having two different alleles of a particular gene and so giving rise to varying offspring

(genetics) an organism having two identical alleles of a particular gene and so breeding true for the particular characteristic

(biology) the structural adaptation of some body part for a particular function; "cell differentiation in the developing embryo"

(biology) the structural adaptation of some body part for a particular function; "cell differentiation in the developing embryo"

(biology) the structural adaptation of some body part for a particular function; "cell differentiation in the developing embryo"

an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate i…

early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this…

early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this…

double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer diff…

a solid mass of blastomeres that forms when the zygote splits; develops into the blastula

the blastula of a placental mammal in which some differentiation of cells has occurred