PCBl 4674l Examl 1l Latestl 2026l 2027l

PCBl 4674l Examl 1l (Latestl 2026/l 2027l Update)l Review|l 100%l Verifiedl Questionsl &l Answersl |l Gradel A

Q:l Malel pipefishl havel al broodl pouchl inl whichl theyl carryl andl protectl developingl embryos.l Thel genel patristacinl playsl al majorl rolel inl thel formationl andl functionl ofl thel pouch.l Anl evolutionaryl analysisl revealedl thatl patristacinl isl involvedl inl liverl andl kidneyl functionl inl alll otherl fishl (otherl malel fishl dol notl producel al broodl pouch).l Thisl

providesl anl examplel of:

Answer:

Co-option

Q:l DNAl methylation

Answer:

Isl al forml ofl transcriptionall regulationl ofl genel expression

Q:l Trans-actingl regulatorl elements

Answer:

-l Arel typicallyl farl awayl froml genesl theyl regulate -l Includel transcriptionl factors

Q:l Whichl ofl thel followingl statementsl arel correct: 1 / 2

Answer:

microRNAsl bindl mRNAl andl blockl translation

Q:l Thel presencel ofl al mRNAl transcriptl ofl al genel inl al celll means:

Answer:

Transcriptionl ofl thel genel hasl occurred

Q:l Youl arel studyingl snailsl andl findl thatl individualsl havel shellsl thatl eitherl coill tol thel leftl orl tol thel right.l Whichl ofl thel followingl is/arel thel mostl plausiblel explanationsl forl thisl variation?

Answer:

-l Differentl allelesl atl al singlel locusl producel thel differentl phenotypes -l Individualsl arel geneticallyl identicall butl certainl environmentall conditionsl triggerl productionl ofl eachl coill type

Q:l Tasmanianl devilsl oncel inhabitedl mostl ofl presentl dayl Australis,l butl onlyl anl isolatedl populationl onl thel islandl ofl Tasmanial hasl survivedl tol presentl day.l Whichl ofl thel followingl processesl hasl likelyl affectedl Tasmanianl devilsl asl al resultl ofl thisl history?

Answer:

Al geneticl bottleneck

Q:l Thel effectivenessl ofl selectionl onl anl allelel dependsl inl partl on:

• / 2