DNA RNA and Protein Synthesis

In RNA, uracil takes the place of the DNA nitrogen base called

• guanine
• cytosine
• thymine
• adenine

Suppose you can read the sequence of bases on only one strand of the double helix. What would you use to figure out the sequence on the other strand?

• central dogma
• x-ray crystallography
• Chargaff's rules
• base pairing rules

What  "message" does mRNA carry?

• the genetic code that, when translated, forms proteins
• orders for making ribosomes, a cell's protein factories
• the order of base pairs in complementary RNA strands
• the number of codons in an individual reading frame

What is the term for a three-nucleotide sequence that codes for an amino acid?

• base
• codon
• amine
• serine

Which phrase best describes translation?

• converts mRNA into a protein
• catalyzes bonds between amino acids
• produces RNA from DNA molecules
• recycles tRNA molecules for reuse

Which of the following is the site of translation?

• vacuole
• lysosome
• nucleus
• ribosome

Both DNA and RNA:

• are single stranded molecules
• contain the same four nucleotide bases
• have the same five carbon sugar
• are nucleic acids

Which of the following is found in RNA but not in DNA?

• adenine
• uracil
• guanine
• thymine

The process of synthesizing mRNA from a DNA template is called:

• transcription
• translation
• transformation
• translocation

Which of the following describes the Genotype aa?

• A. Homozygous

• B. Heterozygous