Unit 4 - Heredity Review (Honors Bio)

Where does transcription take place?

• inside the nucleus

• in the cytoplasm

• on the ribosomes

• in the mitochondria

name of DNA inside nucleus prior to undergoing cellular division

Name of enzyme that unzips DNA strands

• Topoisomerase

• DNA Polymerase

• Primase

• Helicase

name of enzyme that builds new DNA strand during replication

• RNA Polymerase

• DNA Polymerase

• Ligase

• Primase

Which of the following would be the correct anti-codon sequence to the mRNA sequence: AUU

• TTT

• TUU

• TAA

• UAA

If a DNA strand contains 40% Adenine, how much Thymine is expected to also be present?

last name of scientist who took x-rays and helped discover the structure of DNA

piece of mRNA that is removed during editing

• exon

• intron

• ligase

• operon

Hershey & Chase demonstrated that

• pneumonia kills mice

• DNA carries the genetic code

• proteins carry the genetic code

• DNA can be transferred between bacteria

What is the function of transcription factors?

• to suppress the expression of a gene

• to block the function of a gene

• puts the gene in a state of rest

• turns on the gene to be expressed