TLS Online TPP Program

#Question id: 6962


In which way is the organizer region of the sea urchin similar to that in frogs?

#SCPH01 Biochemistry
  1. The organizer induces the dorso-ventral axis.
  2. The organizer forms near the dorsal lip of the blastopore.
  3. The organizer accumulates -catenin, which in turn activates the expression of cell-cell signaling molecules.
  4. The organizer will become the mesoderm.
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TLS Online TPP Program

#Question id: 3287

#SCPH28 | Zoology

Which statement is not an assumption of the Hardy–Weinberg law?

a. The allelic frequencies (p and q) are equal.

b. The population is randomly mating.

c. The population is large.

d. Locus is di-allelic

TLS Online TPP Program

#Question id: 3288

#SCPH06 I Botany

Migration causes changes in the allelic frequency of a population by introducing alleles from other populations. The magnitude of change due to migration depends on

TLS Online TPP Program

#Question id: 3288

#SCPH28 | Zoology

Migration causes changes in the allelic frequency of a population by introducing alleles from other populations. The magnitude of change due to migration depends on

TLS Online TPP Program

#Question id: 3289

#SCPH06 I Botany

If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be

TLS Online TPP Program

#Question id: 3289

#SCPH28 | Zoology

If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be

TLS Online TPP Program

#Question id: 3290

#SCPH06 I Botany

Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they are fertile. This kind of isolation is most similar to which of the following reproductive isolating mechanisms?