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TLS Online TPP Program

#Question id: 2618

The three genes (lacZ, lacY, and lacA) are transcribed as a single mRNA from the promoter, these genes are expressed at high levels only when

#SCPH28 | Zoology

  1. Lactose is available

  2. Glucose, the preferred energy source is available

  3. Three regulatory proteins are involved.

  4. The Lac repressor is encoded by the lacI gene, which is located near the CAP Site.

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TLS Online TPP Program

#Question id: 8295

#SCPH05 I Biotechnology

Imagine that a phylogeny was developed for a group of mammals based on bone structure. Which of the following statements would be a reasonable prediction about a phylogeny for the same group of species based on similarities and differences in the structure of a particular enzyme?
TLS Online TPP Program

#Question id: 5061

#I Life Science/ Life Sciences Group – I-V

 The activin family, the bone morphogenetic proteins (BMPs), the Nodal proteins, the Vg1 family included in-
TLS Online TPP Program

#Question id: 18644

#SCPH06 I Botany

A laboratory technique used to separate DNA, RNA or protein molecules based on their size and electrical charge.
TLS Online TPP Program

#Question id: 19303

#SCPH28 | Zoology

A typical plant gene has the following regions 
(i) Promoter
(ii) enhancer/silencer
(iii) Cap site 
(iv) Translated region  
(v) Initiation codon
(vi) Exons 
(vii) intron
(viii) Stop codon
(ix) Poly (A) tail
Which of the following option is incorrect?
TLS Online TPP Program

#Question id: 15491

#SCPH05 I Biotechnology

The respiratory coefficient for the reaction    is defined as