Oral Biology Test

What are the gold standard transcription factors using for generating iPSc?

Mesenchymal stem cells are multi-potent stem cells which is able to differentiate to adult cell like?

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

Who are/ is the pioneer of generating iPSc?

Retroviruses used to deliver the four transcription factors in the earliest studies is safe to generating iPSCs.?

Morphology of mesenchymal stem cells ?

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

Transcription can be divided into 3 stages: initiation, elongation, and termination, each regulated by a large number of proteins such as transcription factors?

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

Some important human diseases are caused by the death or dysfunction of one or a few cell types, e.g., insulin-producing cells in diabetes or dopaminergic neurons in Parkinson’s disease. Therefore, understanding and using stem cells as tool to study this disease model provide a better understand this dysfunction of cell types.?

One strategy to accomplish this goal is nuclear reprogramming, a technique that involves experimentally inducing a stable change in the nucleus of a mature cell that can then be maintained and replicated as the cell divides through mitosis. ?

The main reason for formation of scale is due to detraction of connective tissue.?

What are the 4 steps of responses of mucosa to damage?

What is the biggest conflict of using embryonic stem cells?

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

Transcription factors is a protein that control the rate of transcription of genetic information from?

In our blood, there is a small amount of stem cells which are ready to be differentiate to any cell type under the control of growth factors.?

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

How many types of intra oral tissue?

Growth factor responsible for repair and regeneration: KGF, Keratinocyte growth factor?

There are two major factors influence repair and regeneration?

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.?

Embryonic stem cells are derived from embryos at a developmental stage before the time that implantation would normally occur in the uterus. Normally, it takes about 10 days.?

Four transcription factors (Oct4, Sox2, Klf4, and c-Myc) sometimes is called Yamanaka’s factors.?

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. ?

Upon introduction of reprogramming factors, cells begin to form colonies that resemble pluripotent stem cells, which can be isolated based on their:?

The number of baby teeth is:

The maxillary processes:

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

Appositional stage is confined to:

All of the following statements about the eruption of a permanent tooth and the exfoliation of its predecessor are true, except:

Chemico-parasitic theory of dental caries is proposed by:

First branchial arch is supplied by:

The development of secondary palate begins from:

One of the following occurs during the pre-eruptive phase of a tooth:

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

The cap stage occurs between the:

The epithelial component of the tooth germ is known as:

No basal lamina is found between the cells of the:

All of the following is a bout of Hertwig’s epithelial root sheath except:

The dental sac gives rise to:

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

Inner enamel epithelium:

If the process of morphogenesis is disturbed:

The statements about the branchial apparatus are true except:

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

One of the following characterize prenatal development It is:

Component of mastication are:

Oral foci of Miller’s are seen in:

The dental lamina initiating the permanent molars develops:

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

Caries associated with pre-eruptive enamel hypoplasia:

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:

Regarding deglutition:

Supernumerary roots occur mainly with:

The development of the root begins when:

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

Fluorosis is caused by:

The following embryonic structures contribute to the formation of lower lip: