Oral Biology Test

Taste Buds are located:

The secretions of salivary glands are:

In human’s fertilization normally occurs in:

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

The name of the first branchial arch is:

Four basic qualities:

All of the following is derived from the enamel organ except:

If the process of morphogenesis is disturbed:

The 3 stages of Deglutition are:

Third stage of deglutition is:

Supernumerary roots occur mainly with:

The cell rests of Malassez are derivatives of:

First stage of deglutition is:

All of the following does occur in the active phase of tooth eruption, except:

The caries, all are true except:

All of the following is a functional activity of the enamel organ, except:

During the pre-eruptive phase of tooth eruption:

Passive eruption is:

Caries associated with pre-eruptive enamel hypoplasia:

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

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

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

Widely accepted theory of dental caries is:

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

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:

Facial swellings refer to:

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

Pure mucous salivary gland is:

The down growth of an epithelial thickening buccal to the dental lamina is known as:

Initiation of dental caries depends on:

Component of mastication are:

Advanced bell stage of tooth development refers to:

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

Taste bud is:

The tooth germ is composed of:

Eruptive phase:

The extrinsic muscles of the tongue:

The epithelial rests in the periodontal ligament are derived from:

The bud stage of tooth development occurs at:

One of the following characterize prenatal development It is:

Cre-Lox recombination is a site-specific recombinase technology, used to carry out deletions, insertions, translocations and inversions at specific sites?

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

Growth factors are proteins that regulate many aspects of cellular function, including survival, proliferation, migration and differentiation.?

What is the biggest conflict of using induced pluri-potent stem cells?

Stem cell hierarchy from top to bottom?

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

Mesenchymal stem cells can be extract from many types of tissue, but the most commence one is bone marrow.?

A growth factor is a naturally occurring substance capable of stimulating cellular growth, proliferation, healing, and cellular differentiation.?

iPSc provided unlimited supplies of ________ cells could be used to generate transplants without the risk of immune rejection.?

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.?

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

Growth factors and their receptors can be grouped into ‘families,’ based upon shared features of size and location, and into ‘superfamilies,’ based upon shared their functions.?

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?

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?

Cells responsible for repair and regeneration consist of?

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 works with transcription factors to decrease the rate of gene transcription?

Growth factors and their receptors can be grouped into ‘families,’ based upon shared features of ?