TLS Online TPP Program

#Question id: 15363


Epithelial-to-mesenchymal transition (EMT) is thought to play a crucial role during the process of metastasis in some cancers, Snail and Twist are the two transcription factors, function as EXCEPT

#Unit 4. Cell Communication and Cell Signaling
  1. reduce the expression of genes involved in cell migration
  2. trigger down-regulation of cell-adhesion factors
  3. increase the production of proteases
  4. Snail-G9a-Dnmts complex binds to the fructose-1,6-biphosphatase(FBP1) promoter and silences FBP1 expression in basal-like breast cancer
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TLS Online TPP Program

#Question id: 12169

#Unit 8. Inheritance Biology

During the phenotypic variations, the genotype shows variation at different effect given in graph;


According to the graph , this is an example of,

TLS Online TPP Program

#Question id: 12168

#Unit 8. Inheritance Biology

The proportion of the total phenotypic  variation that is due to genetic differences is known as 

TLS Online TPP Program

#Question id: 12167

#Unit 8. Inheritance Biology

If a cross is made between the two individuals such as,

The F1 shows the 512 individuals, contain the 2 individual shows maximum phenotype. 

i) No. of QTLs

ii) No. of polygenes involved

iii) No. of phenotypes in F2  generation

iv) No. of genotypes in F2 generation

Calculate the given different values;

TLS Online TPP Program

#Question id: 12166

#Unit 8. Inheritance Biology

If cross has made between the plant height 46cm and 10cm , then the F1 progeny shown 28cm . If the of this cross is 3QTL, then how much phenotypes will be formed?

TLS Online TPP Program

#Question id: 12165

#Unit 8. Inheritance Biology

If the environmental variance increases and all other variance components remain same , then what will be the effect on heritability?

TLS Online TPP Program

#Question id: 12164

#Unit 8. Inheritance Biology

What is the value of broad sense and narrow sense heritability respectively , if the given values of;
A) dominance genetic variance =0.4 , 
B) genic interaction variance =0.3,  
C) additive genetic variance =0.6, 
D) environmental variance=0.8,  
E) genetic−environmental interaction variance=0.3