AP Biology Unit 6 Test

Group of structural and regulating genes that functions as a single unit

• Operon

• Plasmid

• DNA

• Oncogene

In an operon, a sequence of DNA where RNA polymerase begins transcription

• Repressor

• Inducer

• Structurel Gene

• Promoter

In an analysis of the nucleotide composition of DNA, which of the following will be found

• A=C

• A+G = C + T

• G + C = A + T

• A = G and C = T

An amino acid deficiency in an organism is most likely to affect

• post translation

• translation

• post transcription

• transcription

Tags

NGSS.HS-LS1-1

Amino acid tryptophan is added to the agar the E.coli are growing on, the trp operon will be

• not affected

• increased in function

• repressed

• induced

DNA wrapped around histone proteins

• nucleosome

• Barr body

• helicase

• primase

The pink ribbon-like structure is

• tRNA

• DNA

• mRNA

• rRNA

Tags

NGSS.HS-LS1-1

Small, circular DNA molecules from bacteria are called...

• Chromosomes

• Chromatin

• Transcripts

• Plasmids

In the diagram, what is structure #1?

• Topisomerase

• Primase

• Helicase

• ssBP

In the diagram what is #4?

• Topisomerase

• Nucleotide

• Helicase

• Primase