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Question 1 of 10
1. Question
This part of the developmental stages is said to have the greatest nuclear-to-cytoplasmic ratio. Which of the following developmental stages is being described?
Correct
Blastula has the greatest nuclear-to-cytoplasmic material ratio.
Incorrect
Blastula has the greatest nuclear-to-cytoplasmic material ratio.
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Question 2 of 10
2. Question
Animals reproduce sexually. It is a key role in creating tremendous genetic diversity. Along the long axis of the organism, the notochord is formed at which layers?
Correct
Notochord is described as a rod of mesodermal cells and is found along the longitudinal axis just which is located just under the ectoderm that forms a groove on the dorsal surface of the embryo. Since the neural tubule forms in the ectoderm, the notochord is mesodermal.
Incorrect
Notochord is described as a rod of mesodermal cells and is found along the longitudinal axis just which is located just under the ectoderm that forms a groove on the dorsal surface of the embryo. Since the neural tubule forms in the ectoderm, the notochord is mesodermal.
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Question 3 of 10
3. Question
The ability of one group of cells to sway the differentiation of a group of cells is termed as:
Correct
Induction is the process of influencing the fate of the nearby cells by one group of cells. This process induced chemical substance to diffuse it from the organizing cells to the responsive cells.
Incorrect
Induction is the process of influencing the fate of the nearby cells by one group of cells. This process induced chemical substance to diffuse it from the organizing cells to the responsive cells.
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Question 4 of 10
4. Question
In this type of cell communication, the cell excretes a substance in the local that signals act on cells.
Correct
If the cell is acting on a nearby cell, along with the diffusion of molecule spread, this pertains to a cell communication called paracrine signaling.
Incorrect
If the cell is acting on a nearby cell, along with the diffusion of molecule spread, this pertains to a cell communication called paracrine signaling.
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Question 5 of 10
5. Question
Jenny has cancer. The doctor removed a cancer cell from the patient and then cultured it. In the process, the cell is seen to divide for an unspecified time/period with no cellular senescence. Which protein is activated that is responsible for this kind of behavior?
Correct
Cells that can divide unspecified time/period with no cellular senescence aren’t normal cell behavior. It only shows that when telomeres become too short stop dividing. In this case, as the cells continued to divide it is seen that telomeres have been activated allowing the cells to divide indefinitely.
Incorrect
Cells that can divide unspecified time/period with no cellular senescence aren’t normal cell behavior. It only shows that when telomeres become too short stop dividing. In this case, as the cells continued to divide it is seen that telomeres have been activated allowing the cells to divide indefinitely.
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Question 6 of 10
6. Question
If the tumor has tissue similar to the placenta, hair, thyroid tissue, and cardiac muscle, this tumor is originated from what potency of the cell?
Correct
Based on the question the tumor has placental tissues, it only shows that cells that able to produce this type of tissue are called totipotent.
Incorrect
Based on the question the tumor has placental tissues, it only shows that cells that able to produce this type of tissue are called totipotent.
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Question 7 of 10
7. Question
Jose’s son was born with an imperforate anus. This means that his anal canal hasn’t formed correctly and the opening through his rectum is connected. Which among the following is the for this condition?
Correct
Correct adult structures are developed because of the programmed cell death. During this development, these correct adult structures are found in multiple locations such as fingers, toes and digestive tract. When the digestive tract is developed properly it only shows that apoptosis occurred during that development. If not, an imperforate anus would be present.
Incorrect
Correct adult structures are developed because of the programmed cell death. During this development, these correct adult structures are found in multiple locations such as fingers, toes and digestive tract. When the digestive tract is developed properly it only shows that apoptosis occurred during that development. If not, an imperforate anus would be present.
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Question 8 of 10
8. Question
This is responsible for the regulation of heartbeat, respiration digestion, and secretion from glands. Which among the following is being described?
Correct
Autonomic Nervous system. The somatic Nervous system is responsible for transmitting information throughout the skin, joints, and muscles. The peripheral nervous system is the connection between the central nervous system to the entire body. The Central nervous system is responsible for the brain and spinal cord.
Incorrect
Autonomic Nervous system. The somatic Nervous system is responsible for transmitting information throughout the skin, joints, and muscles. The peripheral nervous system is the connection between the central nervous system to the entire body. The Central nervous system is responsible for the brain and spinal cord.
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Question 9 of 10
9. Question
Which among the following is responsible for the conservation of energy when the body is in the resting and sleeping state?
Correct
Parasympathetic Nervous system. preganglionic neuron and postganglionic neuron are two neurons that are the peripheral component of the autonomous nervous system. Whereas, the sympathetic nervous systemis responsible for the fight or flight reaction.
Incorrect
Parasympathetic Nervous system. preganglionic neuron and postganglionic neuron are two neurons that are the peripheral component of the autonomous nervous system. Whereas, the sympathetic nervous systemis responsible for the fight or flight reaction.
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Question 10 of 10
10. Question
If pharynx and larynx are blocked by foreign material, the following are things that will likely happen except:
Correct
When the voice box is blocked by foreign material, the person lacks oxygen which causes brain damage and or a heart attack.
Incorrect
When the voice box is blocked by foreign material, the person lacks oxygen which causes brain damage and or a heart attack.