TLS Online TPP Program

#Question id: 7149


What role, if any, do Hox genes play in specification of neuronal fate?

#Unit 5. Developmental Biology
  1. Different Hox genes are activated along the dorso-ventral axis by the gradient of Shh.
  2. Different combinations of Hox genes specify the identities of neurons along the antero-posterior axis
  3. Hox genes determine the identity of the segments along the axis of the vertebrate spinal cord
  4. Hox genes determine the different subtypes of neurons that form along the dorso-ventral axis.
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TLS Online TPP Program

#Question id: 1846

#Unit 4. Cell Communication and Cell Signaling

A small protein subunit used in a vaccine can fail to stimulate T-cell immunity because of:

TLS Online TPP Program

#Question id: 31319

#Unit 12. Applied Biology

Cadmium forms insoluble compounds under alkaline conditions (above pH 7.5) but is highly soluble in acidic pH increases its

TLS Online TPP Program

#Question id: 33365

#Unit 1. Molecules and their Interaction Relevant to Biology

An antibody binds to an antigen with a Kd of 5 X10-8 M. At what concentration of antigen will θ be 0.6

TLS Online TPP Program

#Question id: 7146

#Unit 5. Developmental Biology

In Drosophila, the neuroectoderm is located ventrally during gastrulation, while in mice or frogs, the neuroectoderm is located dorsally. Which statement best describes how the two systems are similar or different?

TLS Online TPP Program

#Question id: 5731

#Unit 8. Inheritance Biology

If an individual is heterozygous for this translocation, the consequence in meiosis will be as follows:

A) Segregation results in a + c in one Gametes and b + d in another gametes, have duplication and deficiency so unable to produce viable offspring

B) Segregation results in a + b in one Gametes and c + d in another gametes, have normal chromosome so all viable offspring produced

C) Segregation results in a + d in one Gametes with normal chromosome and b + c in another gametes contains translocation arrangement, all viable offspring produced

D) Segregation results in a + d in one Gametes with normal chromosome, will produced viable offspring while b + c in another gametes contains translocation arrangement, will produce non viable offspring.