Gene Expression

The nitrogen bases on one side of a DNA molecule read "CGTAGA". What would the matching nitrogen bases on the other side of the DNA molecule read?

• GCATCT

• GCAUCU

• CGTAGA

• ATGCTC

DNA is often described has having a "twisted ladder" shape. What two-word phrase would a scientist use to describe the shape of a DNA molecule?

A polymer made up of many amino acids linked together is called a(n):

• DNA molecule

• RNA molecule

• protein molecule

• glucose molecule

Tags

NGSS.HS-LS1-1

A section of a DNA molecule that is the code for making a specific protein is called a:

• chromosome

• gene

• nucleus

• ribosome

Tags

NGSS.HS-LS3-1

Which of these is NOT the name of a nitrogen base found in DNA?

• adenine

• thymine

• guanine

• uracil

• cytosine

A permanent change in the DNA of a cell is called a:

• mutation

• chromosome

• gene

• synthesis

Tags

NGSS.HS-LS3-2

A mutation that makes it more difficult for an organism to survive would be described as:

• beneficial

• neutral

• harmful

Tags

NGSS.MS-LS3-1

A mutation that makes it easier for an organism to survive would be described as:

• beneficial

• neutral

• harmful

Tags

NGSS.HS-LS4-4

A mutation that has no effect on an organism's chances of survival would be described as:

• beneficial

• neutral

• harmful

Which function of proteins allows molecules to pass in or out of a cell through its membrane?

• structure

• transport

• enzyme

• channel

Tags

NGSS.HS-LS2-3