Balbiani rings are prominent structures found in:
Polytene chromosomes
Lampbrush chromosomes
Meiotic chromosomes
Mitotic chromosomes
Related Questions
In which stage of mitosis do spindle fibers begin to attach to kinetochores?
Prophase
Metaphase
Anaphase
Prometaphase
The 'histone code' hypothesis proposes that specific combinations of histone modifications influence gene expression. If a researcher discovered a novel histone modification, which experimental approach would be LEAST informative for initially investigating its potential role in gene regulation?
Analyzing the genome-wide distribution of the modification using ChIP-seq.
Correlating the presence of the modification with gene expression levels.
Assessing the binding of specific regulatory proteins to the modified histone.
Determining the crystal structure of the modified histone.
In which type of chromosome does the centromere lie exactly at the midpoint?
Acrocentric
Metacentric
Submetacentric
Telocentric
The positive charge of histone proteins facilitates their interaction with:
Positively charged RNA
Neutral lipids
Negatively charged DNA
Other histone proteins
The kinetochore is a complex structure composed primarily of:
Lipids
Carbohydrates
Nucleic acids
Proteins
A chromosome with its centromere located precisely in the middle, dividing it into two arms of equal length, is classified as:
Telocentric
Metacentric
Acrocentric
Submetacentric
When the Centrometre is situated in the middle of two equal arms of chromosomes, the chromosome is referred as:
Sub-metacentric
Acrocentric
Metacentric
Telocentric
Polytene chromosomes, found in certain insect tissues, exhibit distinct banding patterns. These bands represent:
Individual genes arranged linearly along the chromosome.
Regions of heterochromatin exclusively.
Regions where DNA replication has been halted prematurely.
Regions of highly condensed chromatin corresponding to inactive genes interspersed with less condensed regions of active genes.
The structure formed by DNA wrapped around histone proteins is called:
Chromosome
Chromatid
Chromatin
Centromere
Which of the following processes is facilitated by the binding of histone H1 to a nucleosome?
DNA unwinding
Chromatin condensation
RNA splicing
Protein synthesis