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#Question id: 16492


Upstream elements on the other hand regulates the activity of gene action are
A. Enhancer sequences
B. Silencer sequences
C. Termination sequences
D. Signal sequences
Mark the option with correct combination

#SCPH28 | Zoology
  1. A & C 
  2. B & D 
  3. A & B 
  4. C & D 
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TLS Online TPP Program

#Question id: 13108

#SCPH28 | Zoology

With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.

 
 Why is it that some people show three bands?

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#Question id: 11545

#SCPH28 | Zoology

Growth factors are local regulators that ________.

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#Question id: 7314

#SCPH06 I Botany

With reference to plant flowering pattern; match the terms of Column I with the most appropriate term of Column II. (Se-Sepal; Ca-Carpel; St-stamen; Pe-Petal)

s.no.

Homeotic mutants

(Column 1)

S. No

Flower patterning

(Column 2)

A.     

Apetala2 mutant

                    I.  

Ca-Ca-Ca-Ca

B.      

Agamous /Apetala3 mutant

                    II.    

Se-Pe-Pe-Se

C.      

Agamous mutant

               III. 

Se-Se-Se-Se

D.     

Apetala2/Apetala3 mutant

                IV.

Ca-St-St-Ca

 

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#Question id: 20052

#SCPH01 Biochemistry

HCG-kit is based on the phenomenon of 

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#Question id: 15621

#SCPH28 | Zoology

Wild type E. coli metabolizes the sugar lactose by expressing the enzyme ß-galactosidase. You have isolated a mutant that you call lac1–, which cannot synthesize ß-galactosidase and cannot grow on lactose (Lac–). During an condition Lac– strain, called lac3–, is linked to the Tn5 insertion. From a strain carrying the Tn5 insertion and lac3– mutation you isolate an F’ that caries a region of the chromosome that includes both Tn5 and the linked Lac region. Introduce this F’ into an F– strain carrying lac1– by selecting for Kanr. These merodiploids express ß-galactosidase normally. If the merodiploid were Lac–, 
a) the two mutations lie in the different gene.
b) Both mutation are complement each other
c) the two mutations lie in the same gene.
d) Both of the mutations is dominant to wild type.
what could you conclude about the relationship between the lac3– and lac1– mutations from  these statements?