G7 How Traits Change

A section of DNA that codes for one trait is called a ______.

• Chromosome

• RNA

• Gene

• Nucleotide

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A chromosome is _____________.

• A long chain of DNA and proteins wrapped up in a coil

• A section of DNA that codes for one trait

• One step on the ladder of DNA

Tags

NGSS.HS-LS3-1

One step on the ladder of DNA, made from a nitrogen base, sugar, and phosphate group, is called a:

• gene

• chromosome

• RNA

• Nucleotide

Which part of a nucleotide carries the genetic code?

• Phosphate group

• Sugar

• Nitrogen Base

The role of the sugar and phosphate groups in DNA is:

• Backbone, supporting structure

• Carrying the genetic code

The genetic code of DNA comes from 4 nitrogen bases. These are represented by the letters:

• A

• U

• C

• T

• G

Tags

NGSS.HS-LS1-1

RNA contains 4 different nitrogen bases. These are represented by the letters:

• A

• U

• C

• T

• G

The shape of DNA is described as:

• a pyramid

• a noodle

• a single helix

• a double helix

Which DNA base pairs match together?

• C

• T

• T

• G

• G

• C

• A

• A

DNA is found in the:

• Cell cytoplasm

• Cell nucleus

• Ribosome

• Cell wall

Tags

NGSS.MS-LS3-1