Oral Biology Test

Chromatin immunoprecipitation (ChIP) is a type of immunoprecipitation experimental technique used to investigate the interaction between?

Repression, or suppression – decrease the rate of gene transcription?

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

Why transcription factor C-Myc is no longer use for generating iPSc?

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

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

What is the outcome of regeneration?

What is the outcome of repair?

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. ?

What is the hierarchy of mesenchymal stem cells?

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

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

What is Yamanaka’s factors?

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?

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

In the future, possible dentist can use dental pulp stem cells, 3rd mandibular molar, in cell bank due to their pluri-potent.?

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

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

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

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

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

Miller put forth the acidogenic theory of dental caries in the year:

Enamel pearls occur in:

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

Eruptive phase:

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

Secondary palate is:

During tooth eruption into the oral cavity, what happens to the epithelial covering of the enamel:

The most likely factor responsible for tooth eruption is:

The apposition stage of tooth development begins:

One of the following is true about ankylosis:

Chewing sequence could be divided into:

Calcified tissues of the tooth are derived from:

During the pre-eruptive phase of tooth eruption:

The caries, all are true except:

One of the following is a component of tooth germ:

The palatal shelves:

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

Functions of the digestive system are:

Third stage of deglutition is:

Concrescence usually occurs with:

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

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

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

Palatal processes of the maxilla are derived from:

The inferior parathyroid gland originates from:

The three major salivary glands are:

All of the muscles mastication is involved in closing the mandible except:

The Hertwing’s epithelial root sheath is composed of:

The epithelial component of the tooth germ is known as:

The papillae that is projections on the tongue called:

One of the following causes the discolorations of teeth is:

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

The enamel organ:

The Stomodeum is lined by:

The lateral spread of dental caries is facilitated mostly by the:

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

Formation of the nose includes:

The number of baby teeth is: