My Crossword Maker Logo
Powered by BrightSprout
Save Status:
or to save your progress. The page will not refresh.
Controls:
SPACEBAR SWITCHES TYPING DIRECTION
Answer Key:
Edit a Copy:
Make Your Own:
Crossword Word Search Worksheet
Rate This Puzzle:
Log in or sign up to rate this puzzle.

Developmental Genetics & Birth Defects

HGEN 617 - Week 15 
Across
an embryo made up of two or more cell lines that differ in their genotype.
a step along the path of differentiation in which cells acquire certain specialized attributes characteristic of a particular tissue but can still be influenced by external cues to develop into a different type of cell or tissue.
the stage of a developing human organism between fertilization and 9 weeks of gestation, when separation into placental and embryonic tissues occurs.
the acquisition by a cell of novel characteristics specific for a particular cell type or tissue.
the stage of the developing human between 9 weeks of gestation and birth.
a compact ball of 16 cells produced after four cell divisions of the zygote.
a substance produced by cells in a particular region of an embryo that diffuses from its point of origin through the tissues of the embryo to form a concentration gradient
the primary embryonic germ layer that gives rise to many of the visceral organs and lining of the gut.
Down
a stage in embryogenesis after the morula, in which cells on the outer surface of the morula secrete fluid and form a fluid-filled internal cavity within which is a separate group of cells, the inner cell mass, which will become the fetus itself
the stage in development in which cells are irreversibly committed to forming a particular tissue.
the ultimate destination for a cell that has traveled down a developmental pathway.
an individual who develops from a single fertilized egg but in whom mutation after conception results in cells with two or more genotypes.
the primary embryonic germ layer that gives rise to connective tissue, muscles, bones, vasculature, and the lymphatic and hematopoietic systems.
the primary embryonic germ layer that gives rise to the nervous system and skin.
the fertilized egg, the first step in embryogenesis.