Unlocking the Secrets of DNA Structure
Answer Key. Biology I: Unit 2 (A DNA Mastery Unit) - Worksheet 1: DNA Structure
1. What do the letters DNA stand for?
Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid.
2. What is DNA and where is it found?
Every cell in our bodies has a nucleus that contains the DNA that determines heritable features. Adenine, cytosine, guanine, and thymine are the bases—pairs of building blocks—that connect the two tangled strands of DNA. The double-stranded structure of DNA resembles a ladder, and bases make up its rungs.
3. What is DNA composed of?
Nucleotides are a series of molecules that make up DNA. A nitrogen base, a sugar group, and a phosphate group are all components of each nucleotide. DNA can contain the nitrogen bases adenine (A), thymine (T), guanine (G), and cytosine (C). billions of different types of
1. What do the letters DNA stand for? 2. What is DNA and where is it found? 3. What is DNA composed of?
1. DNA stands for deoxyribonucleic acid. 2. DNA is the genetic information found in every cell's nucleus, determining heritable features. 3. DNA is composed of nucleotides, each containing a nitrogen base, a sugar group, and a phosphate group, with four possible nitrogen bases: adenine, thymine, guanine, and cytosine.