Nuclear structure
What is the primary function of the cell nucleus?
To store genetic information (DNA) and control cellular activities
What are the two main types of nucleic acids found in the nucleus?
DNA and RNA
What are the two identical copies of a replicated chromosome joined together called?
Sister chromatids
What is the main biological function of chromosomes during cell division?
To store and equally distribute genetic information to daughter cells.
What is Autophagy and what is its main role in cell biology?
It is the process by which a cell breaks down and recycles its own damaged components/organelles.
What is the double-membrane structure that surrounds the nucleus called?
Nuclear envelope (or karyolemma).
What basic, positively charged proteins help condense and pack DNA inside the nucleus?
histones
What is the region that holds two sister chromatids together called?
Centromere (or primary constriction).
What type of chromosome has a centromere positioned in the exact middle, forming equal arms?
Metacentric chromosome.
"She sells seashells by the seashore."
Successful pronunciation! 🍓
What is the main function of the nucleolus inside the nucleus?
To synthesize ribosomal RNA (rRNA) and assemble ribosome subunits.
What is the fundamental structural unit formed by DNA wrapped around an octamer of histones?
What protein structure on the centromere serves as the attachment site for spindle fibers?
Kinetochore
What type of chromosome has its centromere near one end, making one arm extremely short?
Afrocentric chromosome
What are the names of the main three lead characters in the Harry Potter series?
Harry Potter, Ron Weasley, and Hermione Granger.
What is the fluid/gel-like substance inside the nuclear envelope called?
Nucleoplasm (or karyoplasm).
What is the uncoiled, accessible form of DNA/protein complex present during interphase called?
Chromatin
What are the protective caps at the ends of linear chromosomes called?
Telomeres
What type of chromosome has its centromere slightly off-center, resulting in unequal arm lengths (p and q arms)?
Submetacentric chromosome.
ame 3 popular songs by the K-pop group BLACKPINK.
Any 3 songs (for example: Kill This Love, DDU-DU DDU-DU, How You Like That, Pink Venom, As If It's Your Last).
How do molecules (like RNA and proteins) move between the nucleus and the cytoplasm?
Through nuclear pores (nuclear pore complexes).
What are the two types of chromatin based on their condensation level and transcriptional activity?
Euchromatin (active/loose) and Heterochromatin (inactive/dense).
What is the secondary constriction on certain chromosomes that contains genes for rRNA synthesis called?
Nucleolar Organizer Region
What type of chromosome has its centromere located at the very end of the chromosome?
Telocentric chromosome
Personal Story Time: Share the most embarrassing moment that has ever happened to you!
Open-ended answer.