TLS Online TPP Program

#Question id: 1122


In endocrine signaling, the signaling molecule.

#Unit 4. Cell Communication and Cell Signaling
  1. acts on target cells distant from the site of synthesis.

  2. acts on target cells that are in close proximity to the secreting cell.

  3. acts on the same cells that released the signaling molecule.

  4. acts on cells that are physically in contact with the secreting cell.

More Questions
TLS Online TPP Program

#Question id: 11620

#Unit 8. Inheritance Biology

The expression of some genes is significantly affected by their parental origin, , the differential expression of genetic material depending on whether it is inherited from the male or female parent, is called

TLS Online TPP Program

#Question id: 11621

#Unit 8. Inheritance Biology

A genetic trait becomes more strongly expressed or is expressed at an earlier age as it is passed from generation to generation, this is an example of

TLS Online TPP Program

#Question id: 11622

#Unit 8. Inheritance Biology

If a cross is made between two parental homozygous allele female Red phenotype  (RR) cross with male white phenotype (rr)  resulting F1 progeny  is all red phenotype (Rr), if reciprocate this cross the resulting progeny will be change.

a) Gene expression will be the parental origin dependent

b) uniparental gene contribution and also the expression of the gene is uniparental

c) Gene expression independent over parental origin

d) Gene contribution is biparental but the expression of the gene is uniparental

This prediction concludes that,

TLS Online TPP Program

#Question id: 11623

#Unit 8. Inheritance Biology

Insulin like growth factor in mice, where IgF+ represents tall, IgF- represent dwarf phenotype, if cross between male tall (IgF+/IgF+) with female dwarf (IgF-/IgF-) resulting progeny will shows tall phenotype , while reciprocate this cross resulting progeny  shows dwarf phenotype. If resulting these F1 progeny cross each other then what will be the ratio in F2  generation?

TLS Online TPP Program

#Question id: 11624

#Unit 8. Inheritance Biology

The effect of gene interaction is that one gene masks (hides) the effect of another gene at a different locus, a phenomenon known as

TLS Online TPP Program

#Question id: 11625

#Unit 8. Inheritance Biology

The following is a hypothetical pathway responsible for the coat color in Labrador retrievers, The pathway is controlled by two independently assorting genes ‘B’ and ‘E’ encoding enzymes as shown below. Mutant alleles ‘b’ and ‘e’ code for non- functional proteins.


What is the expected progeny after selfing a plant with the genotype BbEe?