Epigentic code for inactive X chromosome have post-translational modifications characteristic of other regions of heterochromatin as

#Question id: 3818

#Unit 3. Fundamental Processes

DNA replication is studied in a newly discovered bacterium. It takes 30 min for the bacterium to complete a round of replication at 37oC. A Meselson-Stahl-type experiment was performed. The bacteria were grown for several generations in 14N-medium and then switched to 15N-medium. The DNA molecules were then analyzed.

If the mechanism of DNA replication in this bacterium were semi-conservative, what results would be found when the double-stranded DNA was analyzed in a CsCl density gradient after three generations in 15N-medium?

#Question id: 4007

#Unit 3. Fundamental Processes

Of the following statements about the different types of eukaryotic RNA, which one is true?

#Question id: 1093

#Unit 4. Cell Communication and Cell Signaling

Which of the following activities would be inhibited by a drug that specifically blocks the addition of phosphate groups to proteins?

#Question id: 5170

#General Aptitude

Which of the following is the largest ?

#Question id: 33694

#Unit 2. Cellular Organization