Unit 8 Test : Gene Expression

ATTTGAGCC- Original

ATTGAGCC - Mutated

The example above is an example of a

• Insertion

• Point mutation

• Deletion

• Substitution

The portion or segment of the DNA strand that codes for a particular protein is called a _____________________.

• gene

• chromosome

• codon

• anticodon

The monomer, building block, of DNA and RNA; made up of a sugar, phosphate, and nitrogenous base

• Amino Acid
• Fatty Acid
• Nucleotide
• Monosaccharide

If a mutation codes for "stop" in the amino acid chain, this is called a:

• nonsense mutation

• missense mutation

• silent mutation

• frameshift mutation

The monomer of Protein is:

• fatty acid

• amino acid

• glucose

• wax

Which of the following is not a difference in DNA and RNA?

• DNA uses Deoxyribose and RNA uses Ribose
• DNA is double stranded and RNA is single stranded
• DNA uses Uracil and RNA uses Thymine
• DNA uses Thymine and RNA uses Uracil

tRNA is involved in

• carrying amino acids 
• carrying ribosomes
• carrying glucose
• carrying lipids

What is a chain of amino acids called?

• polypeptide

• polysaccharide

The two strands making up the DNA double helix molecule

• contain ribose and deoxyribose in opposite strands.
• are held together by hydrogen bonds.
• are attached through a phosphate to hold the strands together.
• contain uracil but not thymine.

If a point mutation does not change the order of the amino acid sequence, this is called a:

• nonsense mutation

• silent mutation

• missense mutation

• frameshift mutation