Match the following human ABC proteins (Column I) with their function (Column II)

Column I	Column II
A. ABCB1	i. Transports Cl- ions
B. ABCB4	ii. Exports phosphatidylcholine into bile
C. CFTR	iii. Exports cholesterol and phospholipid for uptake into high-density lipoprotein (HDL)
	iv. Exports lipophilic drugs

Which of the following is correct?

TLS Online TPP Program

#Question id: 5749

#Unit 8. Inheritance Biology

Type of mutation in which a pyrimidine is substituted for a purine

TLS Online TPP Program

#Question id: 5750

#Unit 8. Inheritance Biology

 type of microorganism that can exist on minimal medium

TLS Online TPP Program

#Question id: 5752

#Unit 8. Inheritance Biology

base change that changes a codon for an amino acid to a stop codon

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#Question id: 5753

#Unit 8. Inheritance Biology

A bacterial histidine mutant was plated on minimal medium and a single colony grew. You decide to sequence the histidine biosynthetic gene of the revertant and discover that the original mutation is still present.  This colony must have been able grow due to a

TLS Online TPP Program

#Question id: 5754

#Unit 8. Inheritance Biology

A cell is exposed to EMS (a mutagen that causes guanine to mispair with thymine) and allowed to undergo a few rounds of DNA replication.  The mutational event caused by this mutagen will be

TLS Online TPP Program

#Question id: 5755

#Unit 8. Inheritance Biology

A researcher studying bacterial toxin predicts that a lysine within the toxin is important for binding it’s target cell.  She used site-directed mutagenesis to change a codon for lysine (AAA) to one for asparagine (AAU).  However, the mutant toxin still binds to its target cell just as well as the wild-type toxin bound and appears to have no other changes. This type of mutation is probably