Oral Biology Test

The Hertwig epithelial root sheath of disintegrates:

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

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

Streptococcus mutants is involved in dental caries initiation Other bacteria also involved is:

The epithelial component of the tooth germ is known as:

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

Initiation of dental caries depends on:

Appositional stage is confined from:

If Hertwig’s epithelial root sheath does not disintegrate:

Palatal processes of the maxilla are derived from:

Formation of the nose includes:

All the statement below is true about the classification of taste, except:

The secretions of salivary glands are:

Four basic qualities:

The papillae that is projections on the tongue called:

Regarding deglutition:

Pharyngeal mucosa is innervated by the glossopharyngeal nerves because it develops from the:

Primordium for the permanent dentition appears as an extension of dental lamina into the ectomesenchyme:

The function of the inner enamel epithelium is:

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

The region where the inner and outer enamel epithelium meets at the rim of the enamel organ is known as:

Complete tongue activity occurs in:

The reduced enamel epithelium is derived from:

The soft palate develops from:

Bacteria responsible for initiation of caries is:

Taste buds contain:

The number of permanent teeth is:

The embryological origin of the hyoid bone is:

All of the following does occur during the eruptive phase, except:

The vestibular lamina gives rise to:

The inferior parathyroid gland originates from:

Widely accepted theory of dental caries is:

The caries, all are true except:

Functions of the digestive system are:

Facial swellings refer to:

Eruptive phase:

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

All of the following is true of parotid glands, except:

The tooth in permanent dentition is the most susceptible to dental caries is:

All of the following is a functional activity of the enamel organ, except:

All the statement about early dental development, except:

The Hertwing’s epithelial root sheath is composed of:

An undifferentiated cell of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation.?

Activation, or promotion – increase the rate of gene transcription?

A,growth factor is a naturally occurring substance capable of stimulating cellular growth, proliferation, healing, and cellular differentiation. Usually it is a protein or a steroid hormone.?

What are the function of transcription factors?

Why transcription factors is the most import key to generate iPSc, cell reprogramming?

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?

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

In transcription an mRNA chain is generated, with both strands of the DNA double helix in the genome as a template.?

There are two major factors influence repair and regeneration?

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. ?

All four factors are absolutely necessary. In particular, the gene c-Myc is known to promote tumor growth in some cases, which would not affect iPSC usefulness in transplantation therapies. ?

The biggest different of outcome between repair and regeneration on tissue is tissue scaring.?

What is the hierarchy of embryonic stem cells?

Growth factor responsible for repair and regeneration: PDGF, Platelet derived growth factor?

Growth factor responsible for repair and regeneration: TGF-b, Transforming growth factor b.?

Stem cell hierarchy from top to bottom?

Transcription factors sometime is called ?

Embryonic stem cells were banned for basic research practice because it is an unethical practice. Moreover, it cannot create patient-match specific cell line.?