Homework 11-Leet.17-18-Chapt.14 due ion Ape 23 11:50pm Practice Problem 79 5of 1

Question

Homework 11-Leet.17-18-Chapt.14 due ion Ape 23 11:50pm Practice Problem 79 5of 11 For each ingion of the lac operon on the planmidP o2 Y,deinrire whether the rrgion is widyp hal is, it produces a functioral protein oritsa Bacterial sraiss that are 'panially doloid haue two copies of tte plasmid caryng Saleat all that apply. recipionts bactorial ctronceame, and the otther copy is on ho F plasmid that was inodaced ino the cel by corjagaton Parts diplaid genalypes axe writen wih the Fet frat and thc recpient dhromasome rext The promoter sequence conecnn acre The operator sequenoe s cemectnunctionel. Beta-galactosidase is produced from the lec gene Pesmexse is prodkuced from the lac gere You ?eate a lac operon partai dpltad win hs genotype : To dotermino utihgenes aro tra·scribed and under what and then togeher Correct In toeys of gulation in response to lactoos, the cperon males Anctonal represso( howover the optor saquenco is mutated (O) Part B Use the infomalian Sem Pat A to delemine how he eperon is regulated for this genotypEPOZY O Operon is repemease i only protuced in the atseroa of lactose O Operon is indacbie penmease is produced only in the presence ol O Operon i nerinducitle, permeace in nevnr produced even her lactom is prent 0 Type here to search

Explanation / Answer

Part A - I+ P+ Oc Z- Y+

Part B - I+ P+ Oc Z- Y+ - Operon is constitutive, permease is produced even when lactose is absent

Since operator is mutated repressor will not bind to operator, leads to the binding of RNA pol to the promoter site resulting in the constitutive expression of LacY+ gene.

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