Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 6097
TLS Online TPP Program

#Question id: 7297

How is the ABC model for floral identity in Arabidopsis similar to the models for homeotic gene function derived from studies in Drosophila?

#Unit 5. Developmental Biology
  1. The key resposnsibility of homeotic genes in both is patterning of dorsal-ventral asymmetry.
  2. In both organisms, one homeotic gene is expressed at the two ends, a second expressed in to domains more central to that of the first and a third expressed more centrally, thus contributing unambiguous identities to all regions of the organism.
  3. In both organisms, homeotic genes interact, so that it is often the combination of genes present that is critical in specifying structure in adult.

  4. The ABC model of Arabidopsis is essentially identical to the Drosophila model for homeotic gene function, in that the Drosophila version of the A gene is abdominal-A, the Drosophila version of the B gene is Abdominal-B, and the Drosophila version of the C gene is Ultrabithorax.

More Questions
TLS Online TPP Program

#Question id: 10369

#Unit 6. System Physiology – Plant

Which type of the nitrogen-fixing bacteria are thought to maintain a low oxygen concentration (microaerobic conditions) through their high levels of respiration
TLS Online TPP Program

#Question id: 11832

#Unit 6. System Physiology – Plant

Ethylene production and action can be inhibited by various types of inhibitors, some statements about  the inhibitor is given below, which one of the following is incorrect?
TLS Online TPP Program

#Question id: 27108

#Unit 4. Cell Communication and Cell Signaling

The receptor for adrenaline is a
TLS Online TPP Program

#Question id: 28885

#Unit 4. Cell Communication and Cell Signaling

Which of the following protein uses as a second TM protein in canonical Wnt signaling?
TLS Online TPP Program

#Question id: 6561

#General Aptitude

Identity the wrong number in the series : 69, 55, 26, 13, 5