A. DNA replication
B. Complete DNA replication
C. Site-specific recombination
D. Homologous recombination
Choose the correct answer from the options given below :
DNA Crossover Pathway Steps
This question requires arranging the stages involved in DNA crossover between two identical circular molecules. The correct sequence, from the start at the recombination site to the final stage, is determined by the biological processes involved:
- DNA replication (A): The process begins with DNA replication. This might be necessary to prepare the identical circular molecules, ensuring sufficient template material or creating suitable conditions for recombination.
- Homologous recombination (D): This is the primary mechanism for DNA crossover between similar sequences. It involves the exchange of genetic segments between the two circular molecules, typically forming intermediate structures like Holliday junctions.
- Complete DNA replication (B): Following the resolution of the recombination intermediates, complete DNA replication is performed. This ensures both resulting circular DNA molecules are fully replicated and structurally sound.
- Site-specific recombination (C): The final step involves site-specific recombination. This process acts on defined recognition sites, potentially for final maturation, modification, or segregation of the recombined DNA molecules.
Thus, the established order of stages is A, D, B, C.
Similar Questions
- What is the concentration of $OH^-$ in a solution with an $H^+$ concentration of $2 \times 10^{-4} M$ ? The ion product of water at 25$^\circ$ C is $1.0 \times 10^{-14} M^2$.
- Choose the correct sequence from the option for evolution of pathologic hypertensive arteriolosclerosis.
A. Increase in Extra cellular matrix (ECM), smooth muscle proliferation
B. Vascular injury from malignant hypertension
C. Stress (haemodynamic, metabolic)
D. Increase in Permeability, leakage of plasma components
Choose the correct answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : If the device is left out on the worktable "faint ghost band" appears at the test region.
Reason (R) : The unbound conjugate deposited on the test band results in appearance of a faint ghost band.
In the light of the above statements, choose the most appropriate answer from the options given below : - Match List - I with List - II.
List - I (Organism) List - II (Telomere repeat sequence) A. Human I. $(TTGGGG)_n$ B. Yeast II. $(TTTAGGG)_n$ C. Plant III. $((TG)_{1-3}(TG)_{2-3})_n$ D. Ciliated Protozoan IV. $(TTAGGG)_n$
Choose the correct answer from the options given below : - The amount of blood in an average adult human is _________.
- The ability to construct recombinant DNA molecules and maintain them in cells is called _________.
- Match List - I with List - II.
List - I (Morphology) List - II (Functions) A. Mitochondria I. Breakdown of macromolecules for catabolism B. Cytoskeleton II. Main site for synthesis of new proteins or polypeptides C. Lysosomes III. Shape and support to cell D. Ribosomes IV. Energy generation by ATP synthesis
Choose the correct answer from the options given below : - The ability of a malignant cell to detach itself from a tumor and establish a new tumor and another site within the host :
- Choose the correct sequence for how a type I topoisomerase relaxes DNA.
A. DNA release
B. Cleavage and opening of gate
C. Rejoining of cleaved strand
D. Strand passage
Choose the correct answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Cells of different tissues essentially require $CO_2$ to generate energy and perform metabolic functions.
Reason (R) : Deficiency of oxygen or hypoxia results in failure to carry metabolic functions.
In the light of the above statements, choose the most appropriate answer from the options given below :
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?
