Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Feedback Inhibition

Feedback Inhibition

Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!

Feedback Loops

Feedback Loops

In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.

Proofreading

Proofreading

Synthesis of new DNA molecules starts when DNA polymerase links nucleotides together in a sequence that is complementary to the template DNA strand. DNA polymerase has a higher affinity for the correct base to ensure fidelity in DNA replication. The DNA polymerase furthermore proofreads during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.Errors during Replication Are Corrected by the DNA Polymerase EnzymeGenomic DNA is synthesized in...

Proofreading

Proofreading

Synthesis of new DNA molecules is carried out by the enzyme DNA polymerase, which adds nucleotides on the daughter strand complementary to the template DNA strand. DNA polymerase has a higher affinity to add the correct base and ensures fidelity during DNA replication. Furthermore, it exhibits proofreading activity during replication, using an exonuclease domain that cuts off incorrect nucleotides from the nascent DNA strand.
Errors During Replication are Corrected by the DNA Polymerase Enzyme

Allergic Reactions

Allergic Reactions

Contact-dependent Signaling

Contact-dependent Signaling

Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Artificial Intelligence for Molecular Subtyping in Unresectable Gallbladder Cancer: A Proof-of-Concept Study for CT-based HER2 Status Prediction.

Journal of clinical and experimental hepatology·2026

Same author

Efficacy and safety of peptide receptor radionuclide therapy in advanced foregut and hindgut neuroendocrine tumors: a real-world experience from a single institution.

Annals of nuclear medicine·2026

Same author

Simple Interventions Can Improve Access to Autologous Stem Cell Transplant in Low- and Lower-Middle-Income Countries by Reducing Complexity, Lowering Costs, and Minimizing Infectious Risks.

Pediatric blood & cancer·2026

Same author

Prospective study assessing the feasibility of hippocampal-sparing radiotherapy in lung cancer patients requiring cranial irradiation.

Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]·2026

Same author

Multidisciplinary Management of Metastatic Pancreatic Neuroendocrine Tumor Using a Combination of Beta, Alpha Radionuclide and Ethanol Ablation Therapies.

Clinical nuclear medicine·2026

Same author

A prospective pilot study to evaluate the impact of palliative radiotherapy in upfront inoperable/chemo unfit patients with extrahepatic biliary tract tumors.

Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology·2026

Same journal

Technical aspects of the use of prostatic urethral lift for the management of obstructive median lobe - A step-by-step guide.

Indian journal of urology : IJU : journal of the Urological Society of India·2026

Same journal

Androgen deprivation therapy and cognitive trajectories in Indian men: A 36-month prospective matched cohort analysis with Addenbrooke's cognitive examination-III.

Indian journal of urology : IJU : journal of the Urological Society of India·2026

Same journal

Robotic intracorporeal ileal neobladder: Our modifications of the Karolinska Institute technique.

Indian journal of urology : IJU : journal of the Urological Society of India·2026

Same journal

Editorial comment: Technical aspects of the use of prostatic urethral lift for the management of obstructive median lobe - A step-by-step guide.

Indian journal of urology : IJU : journal of the Urological Society of India·2026

Same journal

Magnetic resonance imaging/ultrasound fusion-guided targeted biopsy and ultrasound-guided systematic biopsy for prior negative prostate biopsy: A meta-analysis.

Indian journal of urology : IJU : journal of the Urological Society of India·2026

Same journal

Round up.

Indian journal of urology : IJU : journal of the Urological Society of India·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Jun 20, 2026

Light/dark Transition Test for Mice

Light/dark Transition Test for Mice

Published on: November 13, 2006

Authors' reply

Rakesh Kapoor¹, Pratipal Singh

¹Department of Urology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India.

Indian Journal of Urology : IJU : Journal of the Urological Society of India

|September 1, 2009

Summary

No abstract available in PubMed .

More Related Videos

Knee Arthrocentesis in Adults

Knee Arthrocentesis in Adults

Published on: February 25, 2022

Related Experiment Videos

Last Updated: Jun 20, 2026

Light/dark Transition Test for Mice

Light/dark Transition Test for Mice

Published on: November 13, 2006

Knee Arthrocentesis in Adults

Knee Arthrocentesis in Adults

Published on: February 25, 2022