Developmental Biology Exam 1
Questions With Correct Answers
Embryogenesis - CORRECT ANSWER✔✔-Collective name for the stages of
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development between fertilization and hatching
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Stages of embryogenesis - CORRECT ANSWER✔✔-Fertilization, cleavage,
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gastrulation, organogenesis, metamorphosis, and gametogenesis
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Zygote - CORRECT ANSWER✔✔-Fertilized egg, a single cell which divides
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mitotically to produce all the cells of the body
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Fertilization - CORRECT ANSWER✔✔-Fusion of gametes which stimulates
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development and initiates a new individual
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Cleavage - CORRECT ANSWER✔✔-Series of rapid mitotic divisions following
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fertilization, cytoplasm of zygote divided into smaller cells (blastomeres), and by
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the end formation of the blastula
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Blastula - CORRECT ANSWER✔✔-Early-stage embryo consisting of a sphere of
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cells surrounding an inner fluid-filled cavity, the blastocoel
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, Blastomeres - CORRECT ANSWER✔✔-Any of the cells resulting from the cleavage
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of a fertilized ovum during early embryonic development that together form the
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blast
Blastocoel - CORRECT ANSWER✔✔-The fluid-filled cavity within the blastula
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Blastopore - CORRECT ANSWER✔✔-The invagination point where gastrulation
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begins. For deuterostomes= anus and protostomes= mouth
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This is the dimple that becomes a ring through which cells migrate. Those inside
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will become the mesoderm
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Gastrulation - CORRECT ANSWER✔✔-Stage where blastomeres undergo dramatic
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movements and change their positions relative to one another, results in
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formation of three germ layers| | | |
Gastrula - CORRECT ANSWER✔✔-The stage of the embryo following gastrulation
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in which the three germ layers are formed
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Organogenesis - CORRECT ANSWER✔✔-Germ layers interact with one another
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and rearrange themselves to produce tissues and organs
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Gametogenesis - CORRECT ANSWER✔✔-Development of gametes, usually not
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complete until the organism is physically mature
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Vegetal hemisphere - CORRECT ANSWER✔✔-Bottom portion of the egg which
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contains the yolk | |
Questions With Correct Answers
Embryogenesis - CORRECT ANSWER✔✔-Collective name for the stages of
| | | | | | | | |
development between fertilization and hatching
| | | |
Stages of embryogenesis - CORRECT ANSWER✔✔-Fertilization, cleavage,
| | | | | | |
gastrulation, organogenesis, metamorphosis, and gametogenesis
| | | |
Zygote - CORRECT ANSWER✔✔-Fertilized egg, a single cell which divides
| | | | | | | | | |
mitotically to produce all the cells of the body
| | | | | | | |
Fertilization - CORRECT ANSWER✔✔-Fusion of gametes which stimulates
| | | | | | | |
development and initiates a new individual
| | | | |
Cleavage - CORRECT ANSWER✔✔-Series of rapid mitotic divisions following
| | | | | | | | |
fertilization, cytoplasm of zygote divided into smaller cells (blastomeres), and by
| | | | | | | | | | |
the end formation of the blastula
| | | | |
Blastula - CORRECT ANSWER✔✔-Early-stage embryo consisting of a sphere of
| | | | | | | | | |
cells surrounding an inner fluid-filled cavity, the blastocoel
| | | | | | |
, Blastomeres - CORRECT ANSWER✔✔-Any of the cells resulting from the cleavage
| | | | | | | | | | |
of a fertilized ovum during early embryonic development that together form the
| | | | | | | | | | | |
blast
Blastocoel - CORRECT ANSWER✔✔-The fluid-filled cavity within the blastula
| | | | | | | |
Blastopore - CORRECT ANSWER✔✔-The invagination point where gastrulation
| | | | | | | |
begins. For deuterostomes= anus and protostomes= mouth
| | | | | |
This is the dimple that becomes a ring through which cells migrate. Those inside
| | | | | | | | | | | | | |
will become the mesoderm
| | |
Gastrulation - CORRECT ANSWER✔✔-Stage where blastomeres undergo dramatic
| | | | | | | |
movements and change their positions relative to one another, results in
| | | | | | | | | | |
formation of three germ layers| | | |
Gastrula - CORRECT ANSWER✔✔-The stage of the embryo following gastrulation
| | | | | | | | | |
in which the three germ layers are formed
| | | | | | |
Organogenesis - CORRECT ANSWER✔✔-Germ layers interact with one another
| | | | | | | | |
and rearrange themselves to produce tissues and organs
| | | | | | |
Gametogenesis - CORRECT ANSWER✔✔-Development of gametes, usually not
| | | | | | | |
complete until the organism is physically mature
| | | | | |
Vegetal hemisphere - CORRECT ANSWER✔✔-Bottom portion of the egg which
| | | | | | | | | |
contains the yolk | |
