Which of the following is true for nucleolus ?
It is a site for active ribosomal RNA synthesis.
Larger nucleoli are present in dividing cells.
It takes part in spindle formation.
It is a membrane-bound structure.
Related Questions
Acid hydrolase is found in
Golgi body
ER
Lysosome
Vacuole
Which of the following statements accurately describes the nucleolus?
It is the site of ribosomal RNA (rRNA) synthesis and ribosome biogenesis.
It is a membrane-bound organelle involved in protein synthesis.
It stores DNA and is responsible for DNA replication.
It is the primary site of cellular respiration.
The surface of the endoplasmic reticulum (ER) is covered with
Ribosome
DNA
RNA
Glucose
The common feature between chloroplast and mitochondria is
80S ribosome
Single membrane bound
Starch storage
ds circular DNA
Match the organelle with its function:
Lysosome
Mitochondria
Nucleus
Ribosome
A. Protein synthesis
B. Cellular respiration
C. Contains hydrolytic enzymes
D. Stores genetic material
1-A, 2-B, 3-C, 4-D
1-C, 2-B, 3-D, 4-A
1-D, 2-C, 3-B, 4-A
1-B, 2-A, 3-D, 4-C
Which of the following statements regarding cilia is not correct?
The organised beating of cilia is controlled by fluxes of across the membrane
Cilia are hair-like cellular appendages
Microtubules of cilia are composed of tubulin
Cilia contain an outer ring of nine doublet microtubules surrounding two single microtubules
A nucleosome is a portion of the chromonema containing
Only histones
Both DNA and histones
Only DNA
Both DNA and RNA
Select the incorrect about minisatellites
They are VNTRs
They are surrounded by conserved restriction sites
Size varies from 0.1 to 20 kb
Their copy number varies from individual to individual but not from chromosome to chromosome in an individual
Smooth endoplasmic reticulum acts as a major site for the synthesis of
Lipids and steroids
Proteins
Ribosomes
DNA
Polyribosomes are aggregation of
Peroxisomes
Ribosomes and RNA
Several ribosomes held together by a string of RNA
RNA and RNA
