Semester 2 Review - 1. Protein Synthesis & Meiosis/Mutations

What are the three components of a nucleotide?

• sugar, hydrogen, nitrogen base
• sugar, oxygen, nitrogen base
• sugar, phosphate, nitrogen base
• sugar, phosphate, protein

In which of the following ways does genetic information typically flow in an organism?

• trait --> proteins --> RNA --> DNA

• RNA --> trait -->protein --> DNA

• DNA --> RNA --> protein --> trait

• DNA --> protein --> trait--> RNA

What are the building blocks of proteins called?

• DNA
• RNA
• Ribosomes
• Amino Acids

Which choice below correctly summarizes the base-pairing rules in RNA?

• A-G

  C-T

• A-C

  T-G

• A-U

  C-G

• A-T

  C-G

How would the DNA sequence GCTATA be transcribed to mRNA?

• GCUAUA
• CGATAT
• CGAUAU
• GCUTUT

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

Which component of the DNA molecule provides instructions for the production of the protein and determines the traits of the organism?

• The phosphate group

• The sugar molecule

• The sequence of nitrogen bases

• The hydrogen bonds that hold the sugars to the bases

What is the purpose of the cellular process shown in the image?

• Preserving genetic information for future generations

• Deleting the information in the sequence produced from the DNA template

• Transcribing information in the DNA sequence for use by the cell

• Producing more nucleotides for the DNA sequence

When using your codon chart, what sequence can you use to find the correct amino acid?

• DNA

• mRNA

• tRNA

• Any of these will do

Which of the following best describes a DNA molecule?

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