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TLS Online TPP Program

#Question id: 15279

Which of the following process is essential for successful syncytial specification?

#Unit 5. Developmental Biology
  1. Maintaining the positional relationships between nuclei across the early embryo.
  2. Maintaining the positional relationships between nuclei across the late embryo.
  3. Discontinue the positional relationships between nuclei across the late embryo.
  4. Cells cannot change fate if a blastomere is lost.
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TLS Online TPP Program

#Question id: 31245

#Unit 5. Developmental Biology

Human polysyndactyly syndrome is caused by:
TLS Online TPP Program

#Question id: 5637

#Unit 5. Developmental Biology

In an experiment, Sperm from mice carrying loss-of-function mutations in the Izumo gene. Which of the following statement is correct?
TLS Online TPP Program

#Question id: 31125

#Unit 2. Cellular Organization

At low temperatures, bilayer lipids are highly ordered, forming a gel phase with the acyl chains nearly perpendicular to the plane of the membrane plane. This state, called: 
TLS Online TPP Program

#Question id: 4399

#Unit 3. Fundamental Processes

Transcription factors can

a. exhibit cooperative binding.  b. exist as heterodimers.

c. act to repress transcription of transcription factor genes.

d. undergo conformational changes which alter activity.

e. never interact with co-repressors.
TLS Online TPP Program

#Question id: 3566

#Unit 8. Inheritance Biology

Two organisms, with genotypes BbDD and BBDd, are mated. Assuming independent assortment of the B/b and D/d genes, determine the genotypic ratios in offspring that would occur.