DNA Genes and Proteins

Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA

• UATUAGA
• ACGACTG
• CAUCAGU
• CATCAGT

The main function of tRNA is to...

• carry a message that, when translated, forms proteins
• form a portion of ribosomes
• string together complementary RNA and DNA strands
• bring amino acids from the cytoplasm to the ribosomes

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 polypeptide
• catalyzes bonds between amino acids
• produces RNA from DNA molecules
• recycles tRNA molecules for reuse

Which of the following is the site of transcription?

• vacuole
• lysosome
• nucleus
• ribosome

Which of the following is the site of translation?

• vacuole
• lysosome
• nucleus
• ribosome

Which of the following is created in the nucleus and carries the genetic code to the cytoplasm?

• DNA
• tRNA
• mRNA
• rRNA

What would happen if we did not have start codons?

• Polypeptide chains would continue to grow
• Amino acids would bind to tRNA
• Protein synthesis wouldn't occur
• mRNA would form a double strand

What monomers are DNA and RNA consisted of?

• nitrogen base
• nucleotides
• sugar-phosphate backbone
• blood

Where do nucleotides joined to each other

• sugar and phosphate backbone 
• membranes
• polynucleotide
• adenine to cytocine