MCB 2050* The Nucleus Exam Questions and Answers 100% Solved

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MCB 2050* The Nucleus Exam

Questions and Answers 100% Solved


Prokaryotes do not possess a nucleus that is ___________ but Eukaryotes

do. - ✔✔Membrane bound

The boundary between the cytosol and the nucleus is called the _____. -

✔✔Nuclear Envelope

Where chromosomes are located in the prokaryotes... - ✔✔nucleoid

Main functions of the nucleus: - ✔✔- DNA replication

- transcription/RNA processing

- protein synthesis

- cell division (reproduction)

- control of metabolism

- translation components (ribosomes, mRNA, tRNA) synthesized

- storage component

The outer membrane of the nuclear envelope binds ________ and is

continuous with the _______________. - ✔✔Ribosomes; RER

, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

Inter membrane space of the nuclear envelope can otherwise be referred to

as .... - ✔✔Nuclear Envelope Lumen

The intermembrane contains proteins that connect the nuclear _______. -

✔✔lamina

The nuclear lamina provides what for the nucleus? - ✔✔structural

framework (keeps ovular)

Main functions of the nuclear envelope - ✔✔- separates nuclear content

from cytoplasm

- Selective Barrier

- Regulates gene expression

- Binds nuclear lamina

Nuclear lamina provide _____ for chromatin. - ✔✔scaffold for attachment

Mutations in either lamina genes can lead to diseases such as____ -

✔✔Progeria

_________ are located in the nucleoplasm and do not contain membranes

- ✔✔subdomains (specialized regions)

Location of actively transcribed gene in the nucleus - ✔✔periphery of a

chromosomal subdomain