DNA and genes (Week 1 exit ticket)

DNA is;

• A cell

• An organ

• A molecule

• A nucleus

Tags

NGSS.MS-LS3-1

DNA is stored in the _________ of a plant or animal cell.

• Cytoplasm

• Plasma membrane

• Golgi apparatus

• Nucleus

Tags

NGSS.MS-LS1-2

Identify which of the following are determined by the genetic information in DNA.

• How an organism develops

• Whether or not an organism will grow legs, wings or branches

• Exactly how long an organism will live

• How the parts of an organism work together

Tags

NGSS.MS-LS1-5

NGSS.MS-LS3-1

NGSS.MS-LS4-4

A provides instructions for how amino acids join together to form:

• Atoms

• Proteins

• Molecules

• Cells

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

Organs are made up of

• Amino acids

• Proteins

• Cells

• Tissues

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

Tissues are made up of

• Amino acids

• Proteins

• Cells

• Organs

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Cells are made up of

• Amino acids

• Proteins

• Tissues

• Organs

Tags

NGSS.MS-LS1-1

Proteins are made up of

• Amino acids

• Cells

• Tissues

• Organs

Tags

NGSS.HS-LS1-1

If 30% of the bases in a particular DNA molecule are guanine (G), calculate the percentage of the bases would be thymine (T). Explain your reasoning.

Answer explanation

Guanine (G) always joins together with cytosine (C). So if 30% of the bases in the DNA molecule are G's then another 30% of the bases must be C's. This makes a total of 60% that are C's or G's.

The rest of the bases (40%) in the molecule must be A's and T's. These always join together in pairs so there must be equal numbers of each. So 20% of the bases must be thymine (T).

Determine which two of the following correctly describe what a gene is.

• A packet of genetic information that can be passed down from one generation to the next

• A DNA molecule

• A section of DNA that provides instructions for building a specific protein

• The entire collection of genetic information in a given species

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2