Biology Extension Test

This diagram shows DNA fingerprints from a daughter horse, the mother horse, and four possible fathers. Which horse is most likely the father?

• 1
• 2
• 3
• 4

A DNA sequence is TCC. What amino acid does it code for?

• Serine
• Arginine
• Glycine
• Glutamic acid

An mRNA sequence is GCG. What amino acid does it code for?

• alanine
• arginine
• histidine
• tyrosine

An mRNA molecule has the sequence CUCAAGUGCUUC. What amino acids does this mRNA molecule code for?

• Ser-Tyr-Arg-Gly
• Val-Asp-Pro-His
• Glu-Lys-Cys-Phe
• Pro-Glu-Leu-Val

A DNA molecule has the sequence GCT. Which mutated sequence will affect the protein produced?

• GTT
• TCC
• TCT
• GCA

The process represented in the diagram uses a template strand of DNA to produce a molecule that can now leave the nucleus. What type of molecule is produced?

• mRNA
• new DNA
• Polypeptide
• carbohydrate

Which scientists are credited with discovering the structure of DNA?

• Avery and Chargaff
• Mendel and Griffith
• Hershey and Chase
• Watson and Crick

Which of the following is NOT a part of a DNA molecule?

• ribose
• phosphate
• deoxyribose
• nitrogen base

What is the monomer of DNA shown in the diagram?

• Nucleotide
• amino acid
• pyrimidine
• polysaccharide

In an animal cell, where does DNA replication take place?

• nucleus
• ribosome
• lysosome
• cell membrane