DNA Structure and Gene Function

What are the repeating units of proteins?

• Glucose

• Amino acids

• Fatty acids

• Peptides

Tags

NGSS.HS-LS1-1

Linking several amino acids together produces what polymer?

• Polysaccharide

• Polynucleotide

• Polypeptide

• Triglyceride

Tags

NGSS.HS-LS1-1

Which protein structure is matched correctly?

• primary structure : folded amino acid chains due to hydrogen bonds

• secondary structure : interactions between more than one amino acid chain in a protein

• tertiary structure : 3D structure due to interactions of R groups on amino acids

• quaternary structure : chain of amino acids

What sugar is present in DNA?

• Deltaglucose

• Deoxyribose

• Fructose

• Ribose

What sugar is present in RNA?

• Deltaglucose

• Deoxyribose

• Fructose

• Ribose

Which nitrogenous base is not found in RNA?

• Adenine

• Thymine

• Uracil

• Cytosine

A DNA probe with sequence TCAGGCTTCAG would bind most strongly to which of the following DNA fragments?

• AGTCCGAAGTC

• TCAGGCTTCAG

• GACTTCGGACT

• UGAGGCUUGAG

What is the basic role of mRNA in protein synthesis?

• Transfer the amino acids to the ribosome

• Transfer the amino acids to the nucleus

• Transfer the mRNA message to the nucleus

• Transfer the DNA message to the ribosome

In protein synthesis, transcription produces _________, while translation produces _________.

• DNA, RNA

• RNA, Polypeptides

• Polypeptides, RNA

• RNA, DNA

In a semi-conservative model of DNA replication, which of the following is true?

• The daughter DNA molecule consists of 1 parent strand and 1 new strand.

• The daughter DNA molecule consists of 2 parent strands.

• The daughter DNA molecule consists of 2 newly formed strands.

• The daughter DNA molecule consists of an uneven mix of old and new strands.