The Hox genes came to regulate each of the following in what sequence, from earliest to most recent?

1. identity and position of paired appendages in protostome embryos

2. formation of water channels in sponges

3. anterior-posterior orientation of segments in protostome embryos

4. positioning of tentacles in cnidarians

5. anterior-posterior orientation in vertebrate embryos

TLS Online TPP Program

#Question id: 1237

#Unit 4. Cell Communication and Cell Signaling

Arrange the following events in the proper order in which they occur during transduction of the Notch/Delta signaling pathway:

a. cleavage of Notch by TACE                                  

b. binding of Delta to Notch

c. translocation of Notch segment to the nucleus      

d. interaction of Notch with transcription factors     

e. cleavage of Notch by Presenilin 1  

TLS Online TPP Program

#Question id: 27938

#Unit 9. Diversity of Life Forms

Those species which look alike or morphologically similar but cannot breed with each other, such type species is called______

TLS Online TPP Program

#Question id: 5588

#Unit 5. Developmental Biology

The progenitor cells of blood vessels are called as:

TLS Online TPP Program

#Question id: 23252

#Unit 13. Methods in Biology

In Maxam gilbert method guanine specific cleavage is done by using

TLS Online TPP Program

#Question id: 28583

#Unit 2. Cellular Organization

Some given R factor which are responsible for beginning of the cell cycle in mammalian cells?