TLS Online TPP Program

#Question id: 5555


The formation of the fertilization envelope requires an increase in the cytosolic concentration of ________.

#Unit 5. Developmental Biology
  1. calcium ions

  2. hydrogen ions

  3. potassium ions

  4. sodium ions

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TLS Online TPP Program

#Question id: 8899

#Unit 9. Diversity of Life Forms

A new species of aquatic chordate is discovered that closely resembles an ancient form. It has the following characteristics: external armor of bony plates, no paired lateral fins, and a suspension-feeding mode of nutrition. In addition to these, it will probably have which of the following characteristics?

TLS Online TPP Program

#Question id: 1412

#Unit 4. Cell Communication and Cell Signaling

Which technique is the best for identifying which genes are upregulated and which are downregulated when cancer cells in culture are treated with taxol?

TLS Online TPP Program

#Question id: 15194

#Unit 8. Inheritance Biology

 Genes that control coat color in mammals represent some of the best early examples of genes with multiple alleles exhibiting different phenotypes. A classic example is the C gene in hamsters. Three of the known alleles of this gene are C, ca and ck. Each supplies a different amount of black pigment to the coat hair. The phenotypes of three different homozygous strains are as follows.

would mate the true-breeding  ca ca  hamsters to the true-breeding ck ck  hamsters to produce heterozygous  ca and ck  F1 progeny,  the F1 progeny cack  hamsters self fertilized, From the fraction of F2 progeny that have the wild type black phenotype, 

Crosses and their interpretation that would have allowed geneticists to come to the conclusion that ca and ck were likely to be alleles of the different gene. 
What will be the ratio of F2 hamster;

TLS Online TPP Program

#Question id: 23344

#General Aptitude

The research is a

TLS Online TPP Program

#Question id: 19338

#Unit 12. Applied Biology

What is the full form of FBS?