Structure and role of Nucleic Acids

Structure and Role of Nucleic Acids

Multiple Choice

What are the three components of a nucleotide?

• pentose sugar, hydrogen, nitrogen base

• sugar, oxygen, nitrogen base
• pentose sugar, phosphate, nitrogen base

• sugar, phosphate, protein

Multiple Choice

RNA contains the sugar

• ribose
• deoxyribose
• glucose
• lactose

Multiple Choice

Which diagram shows the structural formula for DNA

Multiple Choice

Which of the following statements is true?

• DNA is single-stranded
• RNA is single-stranded
• DNA contains uracil
• RNA contains deoxyribose

Multiple Choice

What is the difference between DNA and RNA in terms of bases?

• RNA contains uracil in place of thymine
• RNA contains uracil in place of adenine
• RNA contains uracil in place of guanine
• RNA contains uracil in place of  cytosine

Multiple Choice

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Multiple Choice

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Multiple Choice

What will the matching sequence be on a strand that reads AAGCTAT?

• AACGATA
• TTCGTTA
• CCTGATA
• TTCGATA

Multiple Choice

What's the difference between purine and pyrimidine nitrogen bases?

• Pyrimidines are only found in DNA, not RNA

• Pyrimidines have two rings, Purines have one

• Purines are only found in DNA, not RNA

• Purines have two rings, Pyrimidines have one

Multiple Choice

Which of the following describes the base pairing and bonding involved with nitrogenous bases?

• Adenine binds with Cytosine with 2 hydrogen bonds

• Adenine binds with Thymine with 2 hydrogen bonds

• Adenine binds with Guanine with 3 hydrogen bonds

• Adenine binds with Uracil with 3 hydrogen bonds

Multiple Choice

Bases with a double-ring structure are called

• Pyrimidine

• Purine

• Polymer

• Monomer

Multiple Choice

In Eukaryotic cells, where is DNA ALWAYS located?

• Cytoplasm
• Nucleus
• Outside of the cell
• DNA is always moving around

Multiple Select

Primary functions of DNA are (mark all that apply)

• Transmit information on heredity from one generation to the next

• Control cellular respiration

• Regulate homeostasis

• Provide a blueprint for making proteins

Multiple Select

Which of the following are purines?

• adenine

• cytosine

• guanine

• thymine

• uracil

Multiple Choice

Which type of RNA transfers amino acids?

• mRNA

• rRNA

• tRNA

Multiple Choice

Which type of RNA are ribosomes made of and reads the mRNA?

• mRNA

• rRNA

• tRNA

Multiple Choice

Which type of RNA is a copy of the DNA “code” instructions for building proteins?

• mRNA

• rRNA

• tRNA

Multiple Choice

Which 2 molecules form the sides (backbone) of the DNA ladder?

• deoxyribose sugar and adenine
• deoxyribose sugar and a hydrogen bond
• deoxyribose sugar and the nucleus
• deoxyribose sugar and phosphate

Multiple Choice

Nitrogenous bases are joined by which type of bond?

• polar bonds
• ionic bonds
• covalent bonds
• hydrogen bonds

Multiple Choice

Rosalind Franklin's "photo 51" was critical in helping Watson and Crick to discover what?

• The double helix structure of DNA
• X-Ray crystalography was a technology worth looking in to. 
• That stealing is a great way to get ahead in life
• That there could possibly be life on other planets. 

Multiple Choice

What is the correct order of the central dogma?

• Protein, DNA, RNA

• RNA, DNA, Protein

• DNA, RNA, Protein

• Protein, RNA, DNA