DNA Structure, Replication, Transcription and Translation

What are the two alternating molecules that make up the two sides of the DNA ladder?

• Protein and phosphate
• Protein and sugar
• Sugar and phosphate
• Protein and nucleotide

The order of the base pairs along a gene is important  because:

• an organism can only survive if the base pairs are in the correct sequence.
• if forms a code that tells a cell which protein to make.
• if forms a code that tells a cell how to reproduce.
• None of the above: the order of base pairs doesn't matter

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NGSS.HS-LS1-1

The process of how a DNA molecule makes a copy of itself is referred to as DNA:

• multiplication
• replication
• duplication
• reproduction

During protein synthesis ___________ is responsible for copying the gene and carrying the information out of the nucleus.

• transfer RNA
• ribosomes
• messenger RNA
• DNA

At the end of DNA replication, each strand of the original DNA molecule:

• has been altered.
• remains intact.
• has been tripled.
• None of the above

What is one reason RNA is different from DNA?

• consist of a single strand
• consist of three strands
• consist of two strands
• consist of four strands

Which is the correct pairing for a DNA strand?

• (A with T)                  (C with G)
• (A with C)                       (T with G)
• (A with G)                      (T with C)
• (A with U)                      (C with G)

Which chemical base is not used in RNA but is used in DNA?

• adenine  
• thymine  
• cytosine
• guanine

The production of proteins in a cell is called ......

• protein sequence
• base sequence
• protein synthesis
• DNA replication

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Proteins are made of long chains of smaller molecules called ____________.

• amino acids
• carbohydrates
• lipids

Tags

NGSS.HS-LS1-1