Oral Biology Test

The Stomodeum is lined by:

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

Concrescence usually occurs with:

The map of taste buds for:

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

The dental lamina:

The Hertwig epithelial root sheath can’t be seen as a continuous layer in the developing root because:

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

Bacteria responsible for initiation of caries is:

Chemico-parasitic theory of dental caries is proposed by:

Tongue begins to develop at:

Branchial arches sharing in tongue development are:

The bud stage of tooth development occurs at:

In a developing tooth, if Hertwig’s sheath and the epithelial diaphragm were failed to form, the resulting tooth would exhibit:

All the statement about early dental development, except:

Dental follicle cells:

Turbid dentin in carious tooth is all except:

Actual eruptive movements of tooth occur mainly in a:

If the process of morphogenesis is disturbed:

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

Deglutition is the complex process that:

Each taste bud consists of:

The dental sac gives rise to:

Complete tongue activity occurs in:

Histological changes occurring during the eruptive phase:

The dental sac is:

Concerning cleft lips and cleft palates:

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

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

Facial swellings refer to:

The epithelial component of the tooth germ is known as:

The cap stage occurs between the:

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

Pharyngeal pouches:

The stratum intermedium:

Dental lamina is formed when:

A layer of cells that seems to be essential to enamel formation but do actually secrete the enamel except:

The caries, all are true except:

Yamanaka’s factors were used to generating iPSc in 1st generation because:?

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

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

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.?

iPSCs were reprogrammed to an embryonic stem cell-like state by introducing genes important for maintaining the essential properties of embryonic stem cells (ESCs). ?

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.?

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. ?

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

What is the outcome of regeneration?

Growth factor responsible for repair and regeneration: EGF, Epithermal growth factor?

Cytokines are a broad and loose category of long big proteins (~5–20 kDa) that are important in cell signalling.?

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

There are two major factors influence repair and regeneration?

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.?

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

Transcription factor sometimes is called sequence-specific DNA-binding factor.?

What is the biggest conflict of using embryonic stem cells?

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.?

How many protein structure were classified?

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

Non-marrow origin mesenchymal stem cells EXCLUDE ?

Why generation of iPSc is so attractive to scientist worldwide?