Tooth Development 2

Question 1

Transcription Factors

Answer 1

Found in all cells, interact with core promoter region of DNA
Initiate patterns of gene expression important for makor developmental changes, acts on promotors/enhancers

Question 2

Signalling Molecules

Answer 2

mediate interctions between cells in embryo

cytokines

Question 3

cell surface receptors

Answer 3

intrinsic protein kinase activity or second messengers

Question 4

Protooncogene

Answer 4

direct formation of various molecules

Question 5

oncogene

Answer 5

mutated protooncogene that induces tumor growth

Question 6

tumor supressor genes

Answer 6

limit cell division

Question 7

Field theory

Answer 7

transcription factorrs are different in each field, induce specific teeth

Question 8

Clone theory

Answer 8

a small clone induces the dental lamina to begin tooth development, when clone reaches a certain size the tooth bud is initiated

Question 9

zone of inhibition

Answer 9

makes it so you dont have too many teeth

Question 10

Dental Epithelium is inductive during

Answer 10

lamina and bud stage

Question 11

dental papilla mesenchyme is inductive during

Answer 11

cap and early bell stage