Oral Biology Test

Concrescence is:

The bell stage occurs between the:

The epithelial component of the tooth germ is known as:

The embryological origin of the hyoid bone is:

Cleft palate may result from all of the following except

Initiation of caries by Streptococcus mutans is by the production of the:

Hertwig’s root sheath consists of:

The malleus of inner ear originates from:

All of the structure is the tooth crown except:

Appositional stage is confined to:

Appositional stage is confined from:

Pure mucous salivary gland is:

The following Which contain blood vessels is:

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

The little bumps can see on someone’s tongue are:

The apposition stage of tooth development begins:

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

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

The last hard dental tissue to be deposited is:

The enamel organ:

Dental lamina is formed when:

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

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

Taste Buds are located:

In patient with reduced salivary flow the carious incidence is:

The function of the inner enamel epithelium is:

Histological changes occurring during the eruptive phase:

Deglutition is the complex process that:

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

The name of the second branchial arch is:

The three major salivary glands are:

Formation of the nose includes:

Median rhomboid glossitis is:

The cap stage occurs between the:

Complete tongue activity occurs in:

Odontoblasts start their secretory activity:

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

Passive eruption is:

Another term for the deglutition of food is:

Concerning cleft lips and cleft palates:

First stage of deglutition is:

Embryonic stem cells are derived from embryos at a developmental stage before the time that implantation would normally occur in?

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

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

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?

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.?

What do Growth Factors Do?

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

When the first mouse iPSc were generated and published?

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. ?

What is Yamanaka’s factors?

When the first human iPSc were generated and published?

Why embryonic stem cells were banned for basic research?

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

Cells responsible for repair and regeneration consist of?

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

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

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

What is the biggest conflict of using embryonic stem cells?

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