Nucleolus

Question 1

what are the primary functions of the nucleolus?

Answer 1

rRNA synthesis

Ribosomal subunits synthesis

Question 2

what is the Nucleolus Organizer Region (NOR)

Answer 2

stretch of DNA where multiple copies of the gene for rRNA are located

Question 3

where do the nucleoli form?

Answer 3

in the NOR

Question 4

how many NOR’s are in human cells?

Answer 4

5 NOR’s in human haploid cells (10 diploid)

Question 5

where are NOR’s located?

Answer 5

each located near the tip of a different chromosome