Exam 9: Microbial Genetics

The transfer of DNA fragments from a dead cell to a live, competent recipient cell that results in a changed recipient cell is

If the wild type DNA sequence reads THE CAT ATE THE BIG RAT, what type of mutation would change the sequence to THE CAT ATE (stop)?

Genes that jump from one location to another in the genome are

The smallest unit of heredity is a chromosome.

The analysis of the nitrogenous bases of the nucleic acid of a newly discovered virus showed 20% adenine, 40% guanine, 10% thymine, and 30% cytosine.The viral nucleic acid is most likely

Excised introns form structures called lariats.

What molecule is synthesized as a copy of a gene from the DNA template strand?

DNA polymerase can only add new nucleotides to the old 3'DNA end.

A mutation that changes a normal codon to a stop codon is called a

Bacterial conjugation involves

The lactose repressor

Helicase

If the wild type DNA sequence reads THE CAT ATE THE BIG RAT, what type of mutation would change the sequence to THE CAT ATA ETH EBI GRA T?

Riboswitches exert effects on ______________ whereas repressors and inducers exert effects on ________________.

Base pairs in DNA are held together by _____ bonds.

The enzyme that helps pack DNA into the cell by coiling the DNA into a tight bundle is

In Griffith's experiments with Streptococcus pneumoniae, rough nonencapsulated Streptococci were converted into smooth encapsulated Streptococci in the presence of the heat-killed smooth encapsulated Streptococci.What is the term that describes this process?

The nontranscribed region of DNA to which RNA polymerase binds to initiate transcription is called the

Synthesis of an inducible enzyme requires

DNA gyrase