The expression of avr gene must be precisely regulated: it must be expressed immediately following pathogen attack but only in

TLS Online TPP Program

#Question id: 15392

#Unit 5. Developmental Biology

If an optic vesicle from a Xenopus laevis embryo is placed underneath head ectoderm in a different part of the head from where the frog’s optic vesicle normally occurs then what happens?

TLS Online TPP Program

#Question id: 15393

#Unit 5. Developmental Biology

First inducers (in early gastrula stages) of the lens may be:

TLS Online TPP Program

#Question id: 15394

#Unit 5. Developmental Biology

The elongation and curvature of the lens fibers control by:

TLS Online TPP Program

#Question id: 15395

#Unit 5. Developmental Biology

Which of the following promote the synthesis of the Paired box 6 (Pax6) transcription factor in the anterior ectoderm?

TLS Online TPP Program

#Question id: 15405

#Unit 8. Inheritance Biology

You set up a mapping cross involving two genes in Aspergillus and determine the following percentages of tetrad types: parental ditype 51%, nonparental ditype 49%. What can you say about your genes?

TLS Online TPP Program

#Question id: 15406

#Unit 8. Inheritance Biology

Which method of gene transfer involves direct contact between the bacteria?