Answer:
Differentiated cells refer to the specialized cells in multicellular organisms modified to carry out a particular function, such as transporting a certain substance or executing a specific task, while undifferentiated cells refer to the stem cells capable of giving rise to indefinitely more cells of the same type,.
- example of differentiated cell=zygote to embryo then a comlex foetus
- example of undifferentiated cell= embryonic stem cell.
<h2>hope it helps</h2><h2>stay safe healthy and happy.</h2>
10; 2%
Of the chemicals that fall under the TSCA 10% have been tested for toxicity and 2% have been tested for endocrine, nervous, or immune system damage.
The Toxic Substances Control Act (TSCA) is a law issued by the United States Congress and used by the Environmental Protection Agency (EPA) to demand for documentation and testing requirements, and restrictions associated with chemical substances. Other substances such as foods and drugs are mainly removed from TSCA.
Controlled by more than one gene
Answer:
B
Explanation:
Cytokinesis, which is the division of a cell's cytoplasmic content, is the final step of cell division. After which the genetic material of a cell duplicates, they move towards opposite directions in the cell. The cytoplasm of the original cell halves itself equally for the two resulting cells. Though both animal cells and plant cells go through cytokinesis, they undergo it differently due to the presence of cell wall in addition to the cell membrane in plant cells.
In plant cells, cytokinesis mainly involves the formation of a CELL PLATE at the equator of the parent cell that will soon divide into two. The cell plate, which is the future doubled cell wall that will become separated into two cells, divides the cytoplasm.
In animal cells, cytokinesis occurs in a more complex manner. A fissure called CLEAVAGE FURROW develops by the formation and contraction of the CONTRACTILE RING, which is present beneath the parental's cell membrane and made up of actin filaments. The created furrow grows deeper (as the actin ring contracts) between the two resulting cells until they meet the membrane and pinch off (inwardly), separating from one another. Hence, resulting in two separate daughter cells.
Answer:
Both aneuploidies and trisomies are the result of nondisjunction of the homologous chromosomes during meiosis. The error in the mechanism of chromosome segregation produces two daughter cells, one of them with two homologous chromosomes and the other one without
