Learn names through pictures

Nucleic acid components name typing

Look at the pictures and type the names of Nucleic acid components.
Explore 16 names, one at a time.

Adenine illustration Basic 1616 names · Read and type the name 16
Adenine → Phosphoric acidStart →

Nucleic acid components typing guide →

About Nucleic acid components name typing

Read and type the names beside the Nucleic acid components pictures. Practice 16 names in a fixed sequence, from Adenine to Phosphoric acid, keeping each picture connected with its written term.

Explore five bases, two furanose sugars, eight nucleosides and phosphoric acid.

A nucleoside links sugar and base without phosphate. Sugars use beta-D ring forms; phosphoric acid is shown as the neutral acid.

Enter the full displayed name or a registered alternative to advance automatically. You can edit unfinished text. Enter during input-method composition does not count as an error.

The first nonempty input starts the timer. The final screen shows elapsed time, keystrokes per minute and errors. Best times are stored in this browser separately for each topic, set and language.

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How to play

  1. Choose a set from the selection page.
  2. Read the picture and current name together.
  3. Type the full name or a registered alternative.
  4. A matching answer advances to the next name automatically.
  5. Review your results, retry or choose another set.

Start the first set →

Who is it for?

Practice sets

Start the first set →

Names and spelling

The displayed label is the representative name for that entry. Similar pictures can have different full names.

Only registered alternatives count as answers. Related terms in the explanation are not automatically accepted.

Changing the page language changes the names to type. Japanese pages include readings; Chinese pages include pinyin input.

Practice tips

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Frequently asked questions

Must I memorize the names first?

The current name stays visible, so you can read and copy it without guessing from the picture.

Which name should I type?

Type the name shown in the current language or an alternative registered for that entry.

Do I submit every answer with Enter?

Matching answers advance automatically. An alternative that is also the beginning of a longer answer can be confirmed by waiting briefly or pressing Enter.

When does the timer start?

It starts with the first nonempty input, not while you read the list.

Where is my best time stored?

In this browser, separately by topic, set and language. Records are not automatically shared across devices.

What do the pictures represent?

Explore five bases, two furanose sugars, eight nucleosides and phosphoric acid. A nucleoside links sugar and base without phosphate. Sugars use beta-D ring forms; phosphoric acid is shown as the neutral acid.

A nucleoside links sugar and base without phosphate. Sugars use beta-D ring forms; phosphoric acid is shown as the neutral acid.