Bio - Unit 3, Chapter 10, Lesson 1 & 2

What does the letter 'A' stand for in DNA?

• Adenine

• Thymine

• Guanine

• Cytosine

Fill in the blank: In the DNA structure, _______ pairs with thymine.

• Adenine

• Guanine

• Cytosine

What are the four nitrogen bases of DNA?

• Adenine, Thymine, Cytosine, Guanine

• Adenine, Thymine, Uracil, Guanine

• Adenine, Uracil, Cytosine, Guanine

• Adenine, Thymine, Cytosine, Uracil

Which of the following is not a nitrogen base of DNA?

• A) Adenine

• B) Thymine

• C) Guanine

• D) Uracil

Fill in the blank: The nitrogen base that pairs with adenine in DNA is ________.

• thymine

• cytosine

• guanine

• uracil

Fill in the blank: The nitrogen base that pairs with cytosine in DNA is ________.

• guanine

• adenine

• thymine

• uracil

Which of the following pairs are correct in DNA structure? A) Adenine - Thymine B) Guanine - Cytosine C) Adenine - Cytosine D) Thymine - Guanine

• A) Adenine - Thymine

• B) Guanine - Cytosine

• C) Adenine - Cytosine

• D) Thymine - Guanine

What is an anti-codon?

• A set of three bases on a tRNA molecule that are a complementary pair with an mRNA codon.

• A set of three bases on an mRNA molecule that are a complementary pair with a tRNA codon.

• A single base on a tRNA molecule that pairs with an mRNA codon.

• A set of three bases on a DNA molecule that are a complementary pair with an mRNA codon.

What does the letter 'C' stand for in the context of DNA?

• Cytosine

• Adenine

• Thymine

• Guanine

Fill in the blank: In the DNA structure, the base 'C' stands for ________.

• Cytosine

• Chlorine

• Carbon

• Calcium