HEREDITY UNIT TEST REVIEW 1

DNA is a complex macromolecule composed of --

• deoxribose sugar, phosphate and fatty acid

• deoxribose sugar, phosphate and nitrogen

• ribose sugar, phosphate and amino acid

• ribose sugar, phosphate and nitrogen

Which of the following statements is TRUE of RNA?

• RNA is double stranded

• RNA is found only in the nucleus

• RNA contains the nitrogen base uracil

• RNA contains the nitrogen base thymine

One similarity between DNA and mRNA is that they both contain --

• the same sugar

• a nitrogen base called thymine

• double stranded polymers made up of nucleotides

• genetic codes based on sequences of nitrogen bases

The monomers or building blocks of DNA and RNA are --

• nucleotides

• amino acids

• sugars

• fatty acids

DNA is used as a template /model to create a strand of mRNA during the process of --

• replication

• translation

• transcription

• transition

What is the name of the sugar in DNA?

• glucose

• ribose

• deoxyribose

• glycogen

Use your expert knowledge to identify the last step in the diagram. This is where the information found in the codons of mRNA are used to assemble amino acids to build a polypeptide chain. The polypeptide chain will be eventually folded into a specific shape to become a fully functioning protein.

• replication

• translation

• transcription

• transformation

The type of RNA that delivers the correct amino acid to the ribosome in the cytoplasm is called --

• rRNA

• mRNA

• tRNA

• RNA polymerase

What is the correct complementary strand of DNA bases that will form along the DNA strand shown below:

A T T G C A T

• A T T G C A T

• T A A C G T A

• U A A C G U A

• T U U C G T U

What type of mutation is shown in the diagram above?

• insertion

• deletion

• base-pair substitution

• translation