DNA vs. RNA

What is the basic building block of nucleic acids?

• nucleotides

• nucleus

• cells

• amino acids

Which of the following is NOT a component of the nucleotides?

• A nitrogrenous base

• A five-carbon sugar

• A carboxyl group

• A phosphate group

Match the names of the bases in DNA.

• Guanine

• G

• Thymine

• C

• Adenine

• A

• Cytosine

• T

Match the names of the bases in RNA.

• Adenine

• U

• Cytosine

• A

• Uracil

• G

• Guanine

• C

DNA stands for ​ (a)   . The sugar in DNA is ​ (b)   . DNA is ​ (c)   stranded.

• deoxyribonucleic acid
• ribonucleic acid
• deoxyribose
• ribose
• double
• single

RNA stands for ​​ (a)   . The sugar in RNA is ​ (b)   . RNA is ​​ (c)   stranded.

• ribonucleic acid
• deoxyribonucleic acid
• ribose
• deoxyribose
• single
• double

In DNA, adenine always pairs with _________.

• Uracil

• Cytosine

• Guanine

• Thymine

How many different bases can be found on a strand of RNA?

• 3

• 4

• 5

• 6

Which of the following scientists proposed the structure of DNA as a double helix?

• Theodor Schwann & Francis Crick

• Robert Brown & James Watson

• Gregor Mendel & Rosalind Franklin

• James Watson & Francis Crick

Which of the following terms is defined as the process of making an exact copy of the DNA molecule from an original DNA molecule?

• DNA Replication

• Transcription

• Translation

• Protein Synthesis