Photosynthetic sugar molecules are transported via phloem to other parts of the plants. The following aspects are associated with sucrose unloading in phloem and its transport;

a) The presence of plasmodesmata is assumed to provide apoplastic transport. An absence of plasmodesmata between cells indicates an nonfunctional symplastic continuity

b) Phloem unloading and short-distance transport can occur via symplastic as well as apoplastic pathways

c) Both unloading and the short-distance pathway appear to be completely symplastic in some young eudicot leaves, such as sugar beet and tobacco

d) An apoplastic step is required in developing seeds because there are no symplastic connections between the maternal tissues and the tissues of the embryo

Which of the following combination is INCORRECT?

TLS Online TPP Program

#Question id: 28378

#Unit 5. Developmental Biology

 Which of the following gene is activated in those bands of cells that receive little or no Even-skipped or Fushi tarazu protein, but which do contain Sloppy-paired

TLS Online TPP Program

#Question id: 28379

#Unit 5. Developmental Biology

 during drosophila development, Various signalling pathway occur one of them a protein is act as an autocrine fashion and maintaining its own expression, this protein is known as___

TLS Online TPP Program

#Question id: 28380

#Unit 5. Developmental Biology

The homologue of β-catenin in Drosophila is___

TLS Online TPP Program

#Question id: 28381

#Unit 5. Developmental Biology

The homologue of TGF-β in Drosophila is___

TLS Online TPP Program

#Question id: 28382

#Unit 5. Developmental Biology

Antennapedia(Antp) and Ultrabithorax (Ubx) are the two homeotic gene, which is required for the identity of the segments such as?

a) Antennapedia(Antp) is required for the identity of the third thoracic segment 

b) Antennapedia(Antp) is required for the identity of the second thoracic segment

c) Ultrabithorax (Ubx) is required for the identity of the third thoracic segment

d) Ultrabithorax (Ubx) is required for the identity of the second thoracic segment

TLS Online TPP Program

#Question id: 28383

#Unit 5. Developmental Biology

In the case of recessive mutant of Antennapedia, the gene fails to be expressed in the second thoracic segment, then what will cause?