Oral Biology Test

A growth factor is a naturally occurring substance capable of stimulating cellular growth, proliferation, healing, and cellular differentiation.?

When the first mouse iPSc were generated and published?

The biggest concern of using iPSc as a regenerative tool is the possible of cancer provoke due to infection of transcription factors.?

Mesenchymal stem cells is derived from bone marrow. So they can differentiate into hematopoietic cell line.?

Non-marrow origin mesenchymal stem cells EXCLUDE ?

Because ES cells can proliferate without limit and can contribute to any cell type, human ES cells offer an unprecedented access to tissues from the human body. ?

Protein synthesis consist of 2 steps. What are they, and where do they take place?

How many types of intra oral tissue?

Morphology of mesenchymal stem cells ?

What do Growth Factors Do?

What is the outcome of regeneration?

The ICM, inner cell mass, cells have the potential to generate any cell type of the body, after implantation, they are ————– as they differentiate to other cell types with more limited developmental potential. ?

If the ICM, inner cell mass, is removed from its normal embryonic environment and cultured under appropriate conditions, the ICM-derived cells can ——————————————- indefinitely and still maintain the developmental potential to form any cell type of the body?

The process of making messenger RNA (mRNA) from a DNA template by RNA polymerase?

Mesenchymal stem cells have been confirmed able to differentiated into neuron cell with function?

What is the biggest conflict of using mesenchymal stem cells?

Yamanaka’s factors were chosen because they were known to be involved in the maintenance of pluripotency, which is the capability to generate all other cell types of the body.?

Growth factor is sometimes used interchangeably among scientists with the term transcription factors.?

The inner cell mass cells have the potential to generate any cell type of the body, but after implantation, they are quickly depleted as they differentiate to other cell types with more limited developmental potential. ?

Controlling the rate of gene transcription for example by helping or hindering RNA polymerase binding to DNA?

Chemico-parasitic theory of dental caries is proposed by:

Advanced bell stage of tooth development refers to:

The bell stage occurs between the:

The stratum intermedium:

The number of roots that are formed is determined by the:

One of the following represents the correct order of prenatal development:

The mesenchymal cells lying adjacent to the inner enamel epithelium:

After ovulation the ovum can be fertilized for about:

No basal lamina is found between the cells of the:

All of the following is the ectodermal in origin, except:

Median rhomboid glossitis is:

The palate is derived from three primordia:

Concerning the palate, all of the following are true, except:

Supernumerary roots occur mainly with:

Streptococcus mutans is considered to be a principal etiologic agent of caries because it produces acid and it:

Odontogenesis of the primary dentition begins between:

For a bacterium to be seriously considered in the etiology of dental caries, it must:

The salivary gland is:

The down growth of an epithelial thickening buccal to the dental lamina is known as:

The reduced enamel epithelium is derived from:

The taste sensations appear to be located from the parts of:

One group of structures is entirely derived from the dental sac:

One of the following is important for the development of teeth is:

An oblique facial cleft is formed when the:

The dental sac plays an important role in the formation of all of the following except:

If the process of morphogenesis is disturbed:

Dental caries can be classified with respect to the site of the lesion:

Cavity formation in a tooth, due to dental caries is due to:

The Hertwig epithelial root sheath of disintegrates:

The most likely factor responsible for tooth eruption is:

The function of the inner enamel epithelium is:

The dietary carbohydrate most likely involved in etiology of dental caries is:

All of the following is a part of the tooth germ except:

All of the following is a function of dental sac except:

The number of baby teeth is:

The Stomodeum is lined by:

The map of taste buds for:

Bacteria responsible for initiation of caries is:

All of the following is part of the tooth germ except:

The ectomesenchymal cell condensation just beneath the enamel organ is called: