biology

Mir-101 microRNA precursor family

Mir-101 microRNA precursor family 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 Mir-101 microRNA precursor family rather than just read about it. In short: miR-101 microRNA precursor is a small non-coding RNA that regulates gene expression. Expression of miR-101 has been validated in both human (MI0000103[link removed], MI0000739) and mouse (MI0000148[link removed]).

Key takeaways

Mir-101 microRNA precursor family belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Mir-101 microRNA precursor family to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Mir-101 microRNA precursor family from memory before moving on to harder problems.

Reference excerpt

miR-101 microRNA precursor is a small non-coding RNA that regulates gene expression. Expression of miR-101 has been validated in both human (MI0000103[link removed], MI0000739) and mouse (MI0000148[link removed]). This microRNA appears to be specific to the vertebrates and has now been predicted or confirmed in a wide range of vertebrate species (MIPF0000046[link removed]). The precursor microRNA is a stem-loop structure of about 70 nucleotides in length that is processed by the Dicer enzyme to form the 21-24 nucleotide mature microRNA. In this case the mature sequence is excised from the 3' arm of the hairpin. Survival analysis shows that hsa-miR-101 is associated with survival in multiple breast cancer datasets.

References

Further reading He XP, Shao Y, Li XL, Xu W, Chen GS, Sun HH, Xu HC, Xu X, Tang D, Zheng XF, Xue YP, Huang GC, Sun WH (November 2012). "Downregulation of miR-101 in gastric cancer correlates with cyclooxygenase-2 overexpression and tumor growth". The FEBS Journal. 279 (22): 4201–12. doi:10.1111/febs.12013. PMID 23013439. S2CID 205132426.

External links

Page for mir-101 microRNA precursor family at Rfam miRBase family MIPF0000046

Illustrations

Worked examples

Example 1 — a first encounter with Mir-101 microRNA precursor family

Start with the simplest possible case. Write down what Mir-101 microRNA precursor family 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 Mir-101 microRNA precursor family 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 Mir-101 microRNA precursor family 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 Mir-101 microRNA precursor family

In research: Mir-101 microRNA precursor family 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 Mir-101 microRNA precursor family 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: Mir-101 microRNA precursor family is common in secondary-school and first-year university syllabi. It links to neighbouring topics MicroRNA, MicroRNA precursor families, Molecular and cellular biology stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Mir-101 microRNA precursor family 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 Mir-101 microRNA precursor family in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Mir-101 microRNA precursor family 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 Mir-101 microRNA precursor family out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Mir-101 microRNA precursor family in simple terms?

Why does Mir-101 microRNA precursor family 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 Mir-101 microRNA precursor family?

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 Mir-101 microRNA precursor family.