Components of DNA

Which is a component of DNA?

• Ribose sugar

• Deoxyribose sugar

• Phosphate group

• Both B and C

Tags

DOK Level 1: Recall

What are the four nitrogenous bases found in DNA?

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Uracil, Cytosine, Guanine

• Adenine, Thymine, Cytosine, Uracil

• Thymine, Uracil, Cytosine, Guanine

Which component of DNA forms the backbone of the DNA structure?

• Nitrogenous bases

• Phosphate group and deoxyribose sugar

• Ribose sugar and phosphate group

• Proteins and lipids

Describe the role of nucleotides in specifying traits of an organism.

• They form the backbone of the DNA molecule

• They code for proteins that determine traits

• They provide energy for cellular processes

• They act as enzymes in metabolic reactions

Tags

DOK Level 2: Skill/Concept

On DNA, these two bases are pyrimidines (and have a single ring): ​ (a)   . On DNA, these two bases are purines (and have a double ring): ​ (b)   .

• thymine and cytosine

• adenine and guanine

The structure boxed in red is called a:

• Phospholipid

• Sugar

• Nucleotide

• Amino Acid

What elements are in DNA?

• Carbon, Hydrogen, Oxygen

• Carbon, Hydrogen, Nitrogen

• Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus

• Carbon, Hydrogen, Nitrogen, Sulphur

In the context of genetic research, which of the following components would you find as part of a DNA molecule?

• adenine + phosphate group + thymine

• cytosine + phosphate group + guanine

• deoxyribose + phosphate group + polymerase

• deoxyribose + phosphate group + cytosine

What makes up the SIDES of a DNA ladder?

• nitrogen bases

• sugars & phosphates

• genes & chromosomes

• RNA

Tags

NGSS.HS-LS1-1

What makes up the rungs (steps) of a DNA ladder?

• sugars & phosphates

• nitrogen bases

• sugars

• genes & chromosomes

Tags

NGSS.HS-LS1-1