DNA Basics

What elements can you find in DNA?

• CHO

• CHON

• CHONP

What part of DNA spells out the genetic code?

• bases (A, G, C, or T)

• sugar (deoxyribose)

• phosphate (P)

• hydrogen bonds

What 2 things make up the backbone of DNA?

• adenine and guanine

• cytosine and thymine

• uracil and Hydrogen

• sugar and phosphate

Based on the image, what base always pairs with Adenine?

• Adenine

• Guanine

• Cytosine

• Thymine

Based on the image, what base always pairs with Cytosine?

• Adenine

• Guanine

• Cytosine

• Thymine

Based on the image, what base always pairs with Thymine?

• Adenine

• Guanine

• Cytosine

• Thymine

Using the image, what base always pairs with Guanine?

• Adenine

• Guanine

• Cytosine

• Thymine

What element makes these bonds between the base pairs?

• C, Carbon

• H, Hydrogen

• P, Phosphorous

• Pb, Lead

Answer explanation

They all use Hydrogen.

Which of these would be complimentary to ATG?

• TAC

• CCA

• ATT

• GAC

Which of these would be complimentary to ATT?

• GCC

• GAA

• ACC

• TAA