Repeated sequence TTAGGC in humans is present at :
AATCCG
Understanding Telomeres and DNA Repeats
Telomeres are specialized structures found at the ends of chromosomes in eukaryotic cells, including humans.
They consist of repetitive DNA sequences and associated proteins, serving a crucial protective role.
The main function of telomeres is to prevent the loss of genetic information during DNA replication and to protect chromosome ends from being recognized as DNA damage or undergoing fusion.
The TTAGGC Sequence Location
The question asks for the location of the repeated sequence 'TTAGGC' in humans. While the canonical human telomere repeat sequence is typically cited as 'TTAGGG', highly repetitive sequences are characteristic features of telomeres.
Given the options, the telomere is the known location for such specific, repetitive sequences that cap the ends of chromosomes.
Evaluating Other Options
- Centromere: This is the region that connects sister chromatids and serves as the attachment point for spindle fibers during cell division. It contains different types of repetitive DNA sequences.
- Nucleolus: This nuclear sub-organelle is primarily involved in ribosome biogenesis and contains ribosomal RNA genes, not the TTAGGC repeat.
- Histones: These are proteins that help package DNA into structural units called nucleosomes. They are not DNA sequences themselves.
Final Identification
Therefore, the repeated sequence TTAGGC, characteristic of protective chromosome end structures, is found at the telomere.
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Important Questions from Mixed Topic (CUET PG)
- Who was the founder of Bolshevik Communist party?
- What is the key guide to statecraft in the realist tradition?
- Chronologically arrange the events in the Cold War period.
A. Berlin Wall is constructed
B. Communist China joins the UN
C. Soviet invasion of Czechoslovakia
D. Berlin Blockade
Choose the correct answer from the options given below: Morgenthau's principles of political realism are:
A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?
