MCB 150 EXAM 3 UIUC 2024/2025 Exam
Questions and Correct Answers | New
Update
Nucleoplasm - 🧠ANSWER ✔✔substance of a cell nucleus
Chromatin Fibers - 🧠ANSWER ✔✔DNA and protein
Nucleolus - 🧠ANSWER ✔✔site for rRNA synthesis and processing
assembly of subunits
Nuclear Pore Complex - 🧠ANSWER ✔✔particles can pass through this
Nuclear Lamina - 🧠ANSWER ✔✔Network of proteins that provide
attachement for heterochromatin and give the nucleus shape
Who proposed that there were functional domains of nucleus? -
🧠ANSWER ✔✔Rabl
What can visualize and identify chromosomes? - 🧠ANSWER
✔✔Flourescence
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
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,Functional Domains of Nucleus - 🧠ANSWER ✔✔each chromosome
occupies a distinct territory within the nucleus and is arranged in an
organized fashion. nuclei are divided into discrete funtional domains that
play an important role in regulating gene expression and in replication
How many focis of replication are in the human nucleus? - 🧠ANSWER
✔✔greater than 100
The cell cycle consists of what? - 🧠ANSWER ✔✔M phase and interphase
(G1, S phase, G2)
G1 Phase - 🧠ANSWER ✔✔cell is growing and preparing for s phase
S phase - 🧠ANSWER ✔✔when DNA synthesis occurs (replication), longest
interphase cycle
G2 phase - 🧠ANSWER ✔✔make sure you are ready to go through next
round of m phase
M phase - 🧠ANSWER ✔✔mitosis and cytokinesis (division of mother cell
into two identical daughter cells)
Early replication has what gene density? - 🧠ANSWER ✔✔high gene
density, euchromatin
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, Late replication has what gene density? - 🧠ANSWER ✔✔low gene density,
heterochromatin
Nucleolus - 🧠ANSWER ✔✔ribosome production facility, site for rRNA
synthesis, rRNA processing, assembly of ribosomal subunits
what are the 4 types of rRNA? - 🧠ANSWER ✔✔5s, 5.8s, 18s, 28s
How many copies does the human cell have of 5.8s, 18s, and 28s rRNA
genes? - 🧠ANSWER ✔✔about 280
how many copies does the human cell have of 5s rRNA genes? -
🧠ANSWER ✔✔about 2000
Tandem arrays - 🧠ANSWER ✔✔when 5.8s, 18s, and 28s rRNAS are
transcribed by polymerase 1 into pre rRNA
45S GENES - 🧠ANSWER ✔✔processed into 5.8s, 18s, and 28s rRNAS
are found on human chromosomes 13, 14, 15, 21, and 22
Where are 5s rRNA genes found in huge array? - 🧠ANSWER
✔✔chromosome 1
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
Questions and Correct Answers | New
Update
Nucleoplasm - 🧠ANSWER ✔✔substance of a cell nucleus
Chromatin Fibers - 🧠ANSWER ✔✔DNA and protein
Nucleolus - 🧠ANSWER ✔✔site for rRNA synthesis and processing
assembly of subunits
Nuclear Pore Complex - 🧠ANSWER ✔✔particles can pass through this
Nuclear Lamina - 🧠ANSWER ✔✔Network of proteins that provide
attachement for heterochromatin and give the nucleus shape
Who proposed that there were functional domains of nucleus? -
🧠ANSWER ✔✔Rabl
What can visualize and identify chromosomes? - 🧠ANSWER
✔✔Flourescence
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 1
STATEMENT. ALL RIGHTS RESERVED
,Functional Domains of Nucleus - 🧠ANSWER ✔✔each chromosome
occupies a distinct territory within the nucleus and is arranged in an
organized fashion. nuclei are divided into discrete funtional domains that
play an important role in regulating gene expression and in replication
How many focis of replication are in the human nucleus? - 🧠ANSWER
✔✔greater than 100
The cell cycle consists of what? - 🧠ANSWER ✔✔M phase and interphase
(G1, S phase, G2)
G1 Phase - 🧠ANSWER ✔✔cell is growing and preparing for s phase
S phase - 🧠ANSWER ✔✔when DNA synthesis occurs (replication), longest
interphase cycle
G2 phase - 🧠ANSWER ✔✔make sure you are ready to go through next
round of m phase
M phase - 🧠ANSWER ✔✔mitosis and cytokinesis (division of mother cell
into two identical daughter cells)
Early replication has what gene density? - 🧠ANSWER ✔✔high gene
density, euchromatin
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 2
STATEMENT. ALL RIGHTS RESERVED
, Late replication has what gene density? - 🧠ANSWER ✔✔low gene density,
heterochromatin
Nucleolus - 🧠ANSWER ✔✔ribosome production facility, site for rRNA
synthesis, rRNA processing, assembly of ribosomal subunits
what are the 4 types of rRNA? - 🧠ANSWER ✔✔5s, 5.8s, 18s, 28s
How many copies does the human cell have of 5.8s, 18s, and 28s rRNA
genes? - 🧠ANSWER ✔✔about 280
how many copies does the human cell have of 5s rRNA genes? -
🧠ANSWER ✔✔about 2000
Tandem arrays - 🧠ANSWER ✔✔when 5.8s, 18s, and 28s rRNAS are
transcribed by polymerase 1 into pre rRNA
45S GENES - 🧠ANSWER ✔✔processed into 5.8s, 18s, and 28s rRNAS
are found on human chromosomes 13, 14, 15, 21, and 22
Where are 5s rRNA genes found in huge array? - 🧠ANSWER
✔✔chromosome 1
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY 3
STATEMENT. ALL RIGHTS RESERVED
