Ans.
Cell differentiation is defined as a process, by which less specialized cells, such as embryonic cells become more specialized. The process of cell differentiation is regulated by gene expression. Gene expression involves a specific group of genes that are turned on (expressed) or turn off (repressed) and dictates a cell's function.
A fertilized egg represents a single, non-specialized cell that develops into a complex, multicellular organism by cell differentiation. Thus, a adult rabbit looks so much different as compared to a single fertilized cell or zygote, due to cell differentiation, which is regulated by gene expression.
Answer:
From your list of answers it would be to collect rock samples from the moon.
Explanation:
The correct answer for the question that is being presented above is this one: "motor." A dog starts chasing Gretchen. When her brain sends a signal to her muscles to run, the neurons at work at that moment is the motor neuron. The motor neuron is responsible to any physical movement that bodies executed.
Answer:
Cellulose
Explanation:
Cellulose is a carbohydrate (made up of carbon and and hydrogen atoms). This is common component of cotton and wood. It is also a major component of plant cell walls Cellulose is a polymer that is composed of 3000 or more than 3000 glucose monomers linked together through β(1→4) D-linkage.
It is considered to be one of the most abundant polymers of organic nature on the earth.
- It has a number of commercial uses like:
- Manufacturing of paper and paper based products.
- In scientific labs for conducting thin layer chromatography.
- Manufacture of textile for clothings.
- Manufacturing of biofuels and pharmaceuticals.
Hope it help