Thick ascending limb is called the diluting segment because NaCl is reabsorbed but water is not reabsorbed along with it 

TLS Online TPP Program

#Id: 7364

#Unit 5. Developmental Biology

In the absence of Cerberus, Nodal is not activated and thus Pitx2 is not expressed

TLS Online TPP Program

#Id: 7365

#Unit 5. Developmental Biology

Drosophila eggs undergo Superficial cleavage.

TLS Online TPP Program

#Id: 7366

#Unit 5. Developmental Biology

In the Drosophila egg, karyokinesis occurs without cytokinesis to create a syncytium.

TLS Online TPP Program

#Id: 7367

#Unit 5. Developmental Biology

In Drosophila, during the ninth division cycle- Pole cells determination 

TLS Online TPP Program

#Id: 7368

#Unit 5. Developmental Biology

The transition from specification to determination in Drosophila is mediated by Segmentation genes.

TLS Online TPP Program

#Id: 7369

#Unit 5. Developmental Biology

First zygotic genes is Gap genes. Mutations in them cause gaps in the segmentation pattern.