Protein Synthesis & 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 DNA replication, if the original sequence reads AATTTGCG, the complementary DNA strand would read?

• AAUUUCGC

• AATTTGCG

• TTAAACGC

• UUAAACGC

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

What term describes when mRNA is read 3 consecutive letters (bases) at a time and it codes for a single amino acid?

• Codon

• Anticodon

• Polypeptide

• Gene

What process is going on in this photo? 

• Transcription 
• Translation 
• Replication 
• All the above 

If the mRNA codons read ACA-GUA-GAA-UUG-AUC, what amino acids make up the protein sequence?

• Cys-Val-Gly-Ser-Stop

• Cys-His-Leu-Asn-Stop

• Thre-Val-Glu-Leu-Iso

• None of the above

What is a mutation?

• The specific sequence of bases in a molecule of DNA

• A change in the genetic material of a cell

• The process by which a molecule of DNA make a copy of itself

• The perfect replication of DNA molecule

A mutation that occurs in the gametes of an organism will most likely be transferred to ?

• The siblings of the organism

• The organism itself

• The offspring of the organism

• The mating partner of the organism

Which of the following bases replaces thymine in RNA?

• Uracil

• Adenine

• Cytosine

• Guanine