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Developmental Biology Crossword

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Horizontales
The complete DNA sequence of an individual organism
Structures and/or their respective components whose similarity arises from their performing a similar function rather than arising from a common ancestor
Interactions between, and rearrangement of, cells of the three germ layers to produce tissues and organs
Abnormality or congenital defect caused by exogenous agents (teratogens) such as plants, chemicals, viruses, radiation, or hyperthermia
Hormone important for male primary sex determination
Vertebrate embryo of 16-64 cells; precedes the blastula or blastocyst stage
The science of explaining how a variety of interacting processes generate an organism’s heterogeneous shapes, size, and structural features that arise on the trajectory from embryo to adult, or more generally throughout a life cycle (2 words)
Transcription factors that dictate location within an embryo
Color of mesoderm in illustrations
Induces ventral neural tube formation
Embryo made from cells of two or more different species
The region where the two sister chromatids are tightly associated
Fusion of male and female gametes followed by fusion of the haploid gamete nuclei to restore the full complement of chromosomes characteristic of the species and initiation in the egg cytoplasm of those reactions that permit development to proceed
Single cells, often migratory and relatively undifferentiated cells surrounded by extracellular matrix
Precursor of the limb
One of the last organs to mature in embryonic development
Male gamete
A cleavage-stage cell resulting from mitosis
First functional organ
Verticales
Avian inducer
Embryonic nutrient
Structures and/or their respective components whose similarity arises from their being derived from a common ancestral (evolutionarily related) structure
Bird
Mutations affect gonad and bone formation
Abnormalitities caused by genetic events such as gene mutations, chromosomal aneuploidies, and translocations
A series of rapid mitotic cell divisions following fertilization in many early embryos; cleavage divides the embryo without increasing its mass
The non-yolk-containing (upper) half of the amphibian egg (2 words)
The series of cell types starting from an undifferentiated, pluripotent stem cell through stages of increasing differentiation to the terminally differentiated cell type (2 words)
The process of progressive and continuous change that generates a complex multicellular organism form a single cell
Segmental block or ball of mesoderm formed from paraxial mesoderm adjacent to notochord (the axial mesoderm)
Diagram that follows cell lineages from specific regions of the embryo in order to “map” larval or adult structures onto the region of the embryo from which they arose (2 words)
The invagination point where gastrulation begins
The study of animal development from fertilization to hatching or birth
Male-inducing gene
An often transient mesodermal rod in the most dorsal portion of chordate embryos that plays an important role in inducing and patterning the nervous system as well as a structural role prior to cartilage and bone formation
A fluid-filled cavity that forms in the animal hemisphere of the early amphibian and echinoderm embryos, or between the epiblast and hypoblast of avian, reptilian and mammalian blastoderm-stage embryos
Cells containing the pigment melanin. Derived from neural crest cells and undergo extensive migration to all regions of the epidermis.
The placodes that form ears
Refers to an embryo during neurulation
A unique division process occurring only in germ cells, to reduce the number of chromosomes to a haploid complement
Female gamete
Induces dorsal neural tube development
Amphibian inducer