Chromosomes, DNA and Genes

Sections of DNA that contain the set of instructions that control how our body grows and works and controls many of our characteristics.

• Chromosome

• Nucleus

• Genes

• Cell

Tags

NGSS.HS-LS3-1

Label the following terms: Cell, DNA, Chromosome, Nucleus, Gene

a

b

c

d

e

Nucleus

DNA

Gene

Chromosome

Cell

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

NGSS.MS-LS3-1

What do each of the colored bands on the chromosome diagram represent? 

• DNA

• Cells

• Genes

Tags

NGSS.HS-LS3-1

What is the shape of the DNA molecule?

• Single helix

• Double helix

• Triple helix

• Quadruple helix

A segment of DNA that codes for a trait

• gene

• centromere

• chromosome

• chromatid

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What is DNA?

• A type of protein that helps in digestion

• A molecule that contains the instructions an organism needs to develop, live, and reproduce

• A cell component that provides energy for the cell

• A type of carbohydrate that stores energy

What is the main function of genes?

• To provide energy to the cells

• To digest food

• To determine the traits of an organism

• To protect the cell from viruses

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following best describes why siblings (except identical twins) do not look exactly alike?

• They inherit different genes from their parents

• They choose different lifestyles

• They eat different foods

• They live in different environments

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Why are identical twins genetically identical?

• They inherit exactly the same genes from their parents

• They live in the same environment

• They eat the same food

• They are born at the same time

Tags

NGSS.HS-LS3-1

What is the structure of DNA?

• Single-Helix

• Double-Helix

• Triple-Helix

• X-Shaped

Tags

NGSS.HS-LS1-1