TLS Online TPP Program

#Question id: 5753


A bacterial histidine mutant was plated on minimal medium and a single colony grew. You decide to sequence the histidine biosynthetic gene of the revertant and discover that the original mutation is still present.  This colony must have been able grow due to a

#Unit 8. Inheritance Biology
  1. forward mutation

  2. suppressor mutation

  3. auxotrophic mutation

  4. back mutation

More Questions
TLS Online TPP Program

#Question id: 15901

#Unit 12. Applied Biology

The following features are included between the shoot buds and somatic embryo;

                                                                             FEATURES

A) SHOOT BUD                                 i) Originated from the many cells, usually superficial

B) SOMATIC EMBRYO                        ii) Polarity is defined as bipolar; both shoot and root poles present
                                                        iii) Vascular strands connected with those present in callus/explant
                                                       iv) Easily separated from the callus/explant
                                                        v) There is no vascular connection with callus/explant
Which of the following correctly represents the features of  shoot buds and somatic embryo?

TLS Online TPP Program

#Question id: 15902

#Unit 12. Applied Biology

The pair of hormones required for a callus to differentiate are____

TLS Online TPP Program

#Question id: 15903

#Unit 12. Applied Biology

Protoplast can be produced from suspension cultures, callus tissues or intact tissues by enzymatic treatment with

TLS Online TPP Program

#Question id: 15904

#Unit 12. Applied Biology

If the cell arc treated with 0.01% solution of FDA, what will be the effect on live cell?

TLS Online TPP Program

#Question id: 15905

#Unit 12. Applied Biology

Meristemoids are considered to arise in areas that accumulate polysaccharide, which is believed to serve as an energy source for shoot bud differentiation

TLS Online TPP Program

#Question id: 15906

#Unit 5. Developmental Biology

Which of the following is the switch gene for sex determination?