CHAPTER 3: Information in the Cell

The shape of a DNA molecule can be described as a ___________.

• loop-de-loop

• sea star

• trapeze swing

• twisted ladder

In a DNA molecule, adenine always pairs with ___________.

• cytosine

• guanine

• thymine

• uracil

Each nucleotide is made up of three parts: a sugar, a phosphate, and a base.

• True

• False

Changing the order of the nucleotides in DNA leaves the protein that is built unaffected as long as the same nucleotides are present.

• True

• False

Tags

NGSS.HS-LS1-1

A chromosome is a section of DNA that codes for a unique protein.

• True

• False

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NGSS.HS-LS1-1

There are __________ different kinds of bases found in DNA.

• four

• two

• five

• three

RNA uses __________ instead of thymine.

• adenine

• cytosine

• guanine

• uracil

What do we call the process of converting the RNA code into a protein?

• replication

• transcription

• translation

• transliteration

Protein synthesis is best described by which of the following?

• an enzyme unzipping DNA

• enzymes lining up nucleotides with an unzipped half of DNA

• multiple RNA molecules being transcribed at the same time

• the bonding together of amino acids in a growing chain

Tags

NGSS.HS-LS1-1

Which of the following statements show(s) that genes and their functions are examples of engineered systems and irreducible complexity?

• A. Transcription and translation appear to be designed and built to work together to do a certain job.

• B. Proteins needed for life often develop spontaneously without using transcription and translation.

• C. Transcription and translation require many parts working together to produce proteins.

• D. If tRNA were missing from translation, the entire process would not function properly.