Embryonic Development
Biology ⇒ Reproduction and Development
Embryonic Development starts at 8 and continues till grade 12.
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Describe the main events that occur during gastrulation.
Describe the main function of the amnion in embryonic development.
Describe the role of apoptosis in embryonic development.
Describe the role of the zona pellucida during early embryonic development in mammals.
Explain the difference between determinate and indeterminate cleavage.
Explain the difference between totipotent, pluripotent, and multipotent cells in embryonic development.
Explain the importance of cell signaling during embryonic development.
Explain the significance of the primitive streak in embryonic development.
Explain why the placenta is considered an organ of both the mother and the embryo.
Name the three primary germ layers formed during gastrulation.
A researcher observes that an embryo fails to develop a functional heart and blood vessels. Which germ layer is most likely affected, and why?
Describe how the process of differential gene expression leads to the formation of distinct tissues and organs during embryonic development.
Describe the consequences of a failure in the process of compaction during the morula stage of mammalian embryonic development.
During early embryonic development, which process ensures that only one sperm fertilizes the egg, and what is the significance of this mechanism?
Explain how mutations in homeotic (Hox) genes can lead to developmental abnormalities in animals.
A scientist observes that an embryo exposed to a certain chemical during neurulation develops severe brain and spinal cord defects, but other organs form normally. Based on this observation, which developmental process is most likely disrupted, and why?
Describe the consequences of abnormal apoptosis during limb development in vertebrate embryos.
Explain how gradients of morphogens contribute to the patterning of tissues along the anterior-posterior axis of the developing embryo.
Explain how the process of epigenetic modification can influence gene expression during embryonic development, and provide an example of a developmental process affected by such modifications.
