What is a stem cell? a cell from which a new cell that has a specialized function is formed a mature egg cell that is capable of
forming a new organism a cell that has half the number of chromosomes of a parent cell a specialized cell in the skin that identifies pathogenic organisms?
Answer: The correct answer is- a cell from which a new cell that has a specialized function is formed.
Stem cells can be described as the undifferentiated cells ( with no specific function) in the body that develop into specific cell type ( such as muscle cell, neurons that have specialized function) through a process of differentiation.
They are found in adults ( in certain tissues like bone marrow, blood, and adipose tissue) as well in the developing embryo ( can be extracted from the inner cell mass).
They play significant role in the repair of damaged tissues ( as new cells with specific functions can be produced from them), also involved medical therapies ( for example transplantation of bone marrow) and other areas.
After Mendel’s discoveries were
accepted, scientists realized that traits passed to offspring were the result
of genes being passed from parents to offspring. This is an example of the law
of inheritance. The genes that are passed down from the parents are being
shared by the offspring. It can be shown if the trait is recessive or dominant
from the parents’ gene.
