Podcast
Questions and Answers
What is the arrangement of cells in the blastoderm?
What is the arrangement of cells in the blastoderm?
- Two layers, the epiblast and hypoblast, enclosing a fluid-filled cavity (correct)
- A single layer of cells
- A disorganized mass of cells
- Three layers, with the epiblast and hypoblast surrounding a yolk sac
What type of cleavage occurs in species with little or moderate amounts of yolk, such as sea urchins and frogs?
What type of cleavage occurs in species with little or moderate amounts of yolk, such as sea urchins and frogs?
- Compaction
- Trophoblast formation
- Meroblastic cleavage
- Holoblastic cleavage (correct)
In mammalian cleavage, what is the process that results in a compact blastomere structure?
In mammalian cleavage, what is the process that results in a compact blastomere structure?
- Gastrulation
- Compaction (correct)
- Trophoblast formation
- Implantation
What is the primary function of the trophoblast cells in mammalian embryonic development?
What is the primary function of the trophoblast cells in mammalian embryonic development?
What is the structure that develops from the inner cell mass of the blastocyst?
What is the structure that develops from the inner cell mass of the blastocyst?
What facilitates the implantation of the blastocyst in the uterus?
What facilitates the implantation of the blastocyst in the uterus?
What process begins after the completion of implantation in human embryonic development?
What process begins after the completion of implantation in human embryonic development?
What is the structure formed by the inner cell mass after implantation?
What is the structure formed by the inner cell mass after implantation?
Which of the following statements about mammalian cleavage is incorrect?
Which of the following statements about mammalian cleavage is incorrect?
What is the primary function of the blastocoel in early embryonic development?
What is the primary function of the blastocoel in early embryonic development?
