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TLS Online TPP Program

#Id: 5912

The DnaG primase is an RNA polymerase is smaller than RNA Polymerase; and synthesizes short stretches of RNA that are used as primers for DNA synthesis.

#Unit 3. Fundamental Processes #Mechanism of DNA synthesis in Prokaryotes #Part B Pointers
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TLS Online TPP Program

#Id: 1058

#Unit 5. Developmental Biology

The genes encoding Islet1, Tbx4, and Pitx1 are expressed in presumptive hindlimbs.
TLS Online TPP Program

#Id: 1059

#Unit 5. Developmental Biology

Tbx stands for “T-box,” a specific DNA-binding domain.
TLS Online TPP Program

#Id: 1583

#Unit 5. Developmental Biology

Primitive Streak
The first morphological sign of gastrulation in amniotes
TLS Online TPP Program

#Id: 1584

#Unit 5. Developmental Biology

Primitive Streak; homologous to amphibian blastopore lip
TLS Online TPP Program

#Id: 1585

#Unit 5. Developmental Biology

Ability to initiate a primitive streak is found throughout the marginal zone.
TLS Online TPP Program

#Id: 1586

#Unit 5. Developmental Biology

Once the PMZ has formed, it prevent other regions of the margin from forming their own primitive streaks.