AP Biology Unit 5

What scientist found a "transforming principle" that changed harmless bacteria into harmful bacteria?

• Watson

• Avery

• Chargraff

• Griffith

The strand of DNA that is replicated continuously from 5' to 3' is known as

• leading strand

• lagging strand

• parallel strand

• antiparallel strand

Which enzyme joins the Okazaki fragments in the lagging strand?

• Helicase

• DNA Polymerase

• Ligase

• Primase

Nitrogenous bases are joined by which type of bond?

• peptide bonds

• ionic bonds

• covalent bonds

• hydrogen bonds

Tags

NGSS.HS-LS1-1

In eukaryotes, proteins that help the RNA polymerase bind to the regulatory region for transcription are called ____________.

• transcription factors

• topoisomerase

• regulatory genes

• activators

Tags

NGSS.HS-LS1-1

Where does transcription occur in eukaryotic cells?

• Nucleus

• Ribosome

• Cytoplasm

• Rough E.R.

Gene regulation is the process that is used to:

• help make sugars for cells in plants.

• make glycosomes in cells.

• turn genes on and off.

• Not sure, need help.

What is the function of the poly-A tail in mRNA?

• to add modified guanin to the 3' end of the mRNA

• to indicate the site of translational termination

• to code for the binding of RNA polymerase to the DNA

• to help protect the mRNA from degradation by hydrolytic enzymes 

A possible sequence of nucleotides in the template strand of DNA that would code for the polypeptide sequence phe-leu-ile-val would be?

• 5'-TTG-CTG-CAG-TAG-3'

• 3'-AAC-GAC-GUC-AUA-5'

• 3'-AAA-AAT-ATA-ACA-5'

• 3'-AAA-GAA-TAA-CAA-5'

Tags

NGSS.HS-LS1-1

Translate the following RNA sequence:
AUG AAU UGU UGA

• Met-Phe-Cys-Stop

• Met-Asn-Cys-Stop

• Met-Asn-Cys-Trp

• Tyr-Leu-Thr