Practice Questions

TLS Online TPP Program

#Question id: 7209

Following statements are related to the Epigenetic regulation of Hox gene expression in the chick limb .
A. Hoxa13 is normally not expressed during early limb bud outgrowth.
B. Hoxa13 is normally expressed during early limb bud outgrowth.
C. Inhibition of histone deacetylases with a TSA-coated bead implanted into the early limb bud results in precocious Hoxa13 expression and specifically reduced skeletal elements of the zeugopod
D. Inhibition of HAT proteins with a TSA-coated bead implanted into the early limb bud results in Hoxa13 expression and specifically reduced skeletal elements of the zeugopod
E. The epigenetic hold on gene Hoxa13 expression to allow the necessary time for zeugopod development.
F. The epigenetic hold on gene Hoxa13 expression to allow the necessary time for autopod development.
Which of the following combinations are correct?

#Unit 5. Developmental Biology

More Questions

#Question id: 28818

#Unit 2. Cellular Organization

Which of the following condition is involve to unfolds the myosin II, active and can assemble into bipolar filaments for contraction?

#Question id: 3849

#Unit 3. Fundamental Processes

Which of the following is short 20 to 22-nucleotide single-stranded RNAs that block the expression of complementary or partially complementary mRNAs.

#Question id: 4292

#Unit 3. Fundamental Processes

Termination of prokaryotic translation take place in three set of events. Match the following

A. glycine glycine glutamine, GGQ and RF3-GTP	1. That is essential for polypeptide release in first step, release of class I RF
B. RRF & EF-G	2. the tRNAs and the mRNA must be removed from the ribosome, and the ribosome must dissociate into its large and small subunits.
C. IF3	3. Release of ribosome

#Question id: 23890

#Unit 13. Methods in Biology

#Question id: 27933

#Unit 11. Evolution and Behavior

The evolutionary change happening below the level of species