biology

KDM4D

KDM4D is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand KDM4D rather than just read about it. In short: Lysine-specific demethylase 4D is an enzyme that in humans is encoded by the KDM4D gene. KDM4D belongs to the alpha-ketoglutarate-dependent hydroxylase superfamily.

Key takeaways

KDM4D belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect KDM4D to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of KDM4D from memory before moving on to harder problems.

Reference excerpt

Lysine-specific demethylase 4D is an enzyme that in humans is encoded by the KDM4D gene. KDM4D belongs to the alpha-ketoglutarate-dependent hydroxylase superfamily. In 2017, messenger RNA from this gene was used in the somatic cell nuclear transfer experiment that produced the first two cloned primates from post-embryonic donor material. A similar experiment was carried out to increase the cloning efficiency of bovine species in 2018.

References

Illustrations

Worked examples

Example 1 — a first encounter with KDM4D

Start with the simplest possible case. Write down what KDM4D claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to KDM4D before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about KDM4D ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of KDM4D

In research: KDM4D appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses KDM4D in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: KDM4D is common in secondary-school and first-year university syllabi. It links to neighbouring topics EC 1.14.11, Genes on human chromosome 11, Human 2OG oxygenases, so understanding it makes those chapters shorter.
In everyday life: Look for KDM4D outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study KDM4D in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what KDM4D means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain KDM4D out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is KDM4D in simple terms?

Lysine-specific demethylase 4D is an enzyme that in humans is encoded by the KDM4D gene. KDM4D belongs to the alpha-ketoglutarate-dependent hydroxylase superfamily.

Why does KDM4D matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study KDM4D?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on KDM4D.