Oral Biology Test

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

What are the function of transcription factors?

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

What is the outcome of repair?

A protein that works with transcription factors to decrease the rate of gene transcription?

Why embryonic stem cells were banned for basic research?

Morphology of mesenchymal stem cells ?

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

In order to identify multi-potency stem cells, ones has to undergo cellar differentiation EXCLUDE?

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?

Mesenchymal stem cells can be extracted from marrow and non-marrow.?

A protein that binds to DNA and regulates gene expression by promoting or suppressing transcription?

A specific sequence of DNA that a transcription factor binds to?

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

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

The disadvantage of mesenchymal stem cells is that this stem cells are heterogenous in nature which hard to purify.?

Ethical issues associated with the production of ESCs do apply to iPSCs, which offer a controversial strategy to generate patient-specific stem cell lines.?

The Hertwig epithelial root sheath of disintegrates:

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

Appositional stage is confined to:

Actual eruptive movements of tooth occur mainly in a:

After fertilization of ovum series of cell division give rise to an egg cell mass called:

An oblique facial cleft is the result of:

The occipital somite’s myotomes give rise to:

In the post-eruptive phase, a tooth undergoes primarily:

During tooth eruption, the permanent successors of the primary teeth move occlusal and:

Bacteria responsible for initiation of caries is:

Dental follicle cells:

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

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

Neural crest cells are a temporary group of cells unique to vertebrates that arise from the embryonic ectoderm cell layer, and in turn give rise to A diverse cell lineage including:

All of the following anomalies of the head and neck, except

The statements about the branchial apparatus are true except:

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

The dental lamina:

The cell rests of Malassez are derivatives of:

The dental lamina is induced to proliferate into a tooth bud by the:

Median rhomboid glossitis is:

Calcified tissues of the tooth are derived from:

The salivary gland is:

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

In patient with reduced salivary flow the carious incidence is:

The following are all derived from the stomodeal ectoderm such as:

In humans, which branchial arch rudimentary is:

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

The enamel organ:

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

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

The name of the second branchial arch is:

Concerning the tongue:

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

The probable reasons for a high incidence of dental caries in the teenage population relates most directly to:

Senile carious lesions are most commonly found exclusively on the following areas of the teeth:

One of the following Which of induces the dental papilla cells to be differentiated into odontoblasts is:

The cap stage occurs between the:

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

All the statement about epithelial diaphragm except:

By the 6th week of tooth development, the oral epithelium is:

Taste Buds are located:

One of the following does contribute to the formation of the upper lip: