Tentamen (uitwerkingen)

Bio Core II Exam 1 Actual Exam Questions 100% Correct Answers Verified 2024 Version

0 keer verkocht

Vak
THE AUTHENTIC

Instelling
THE AUTHENTIC

Bio Core II Exam 1 | Actual Exam Questions | 100% Correct Answers | Verified 2024 Version which of the following statements regarding a DNA double helix is always true? - the amount of adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of cytosine work...

[Meer zien]

Voorbeeld 2 van de 8 pagina's

Bekijk voorbeeld

Geupload op 1 juli 2024
Aantal pagina's 8
Geschreven in 2023/2024
Type Tentamen (uitwerkingen)
Bevat Vragen en antwoorden

bio core ii exam 1 actual exam questions 100

$7.99

In winkelwagen

Op verlanglijstje

100% tevredenheidsgarantie
Direct beschikbaar na je betaling
Lees online óf als PDF
Geen vaste maandelijkse kosten

Bio Core II Exam 1 | Actual Exam
Questions | 100% Correct Answers |
Verified 2024 Version
which of the following statements regarding a DNA double helix is always true? - ✔✔the amount of
adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of
cytosine

working in a coroner's office, you are investigating the mysterious death of a person found in the
wooded area in the spring of the year. during a cellular analysis of this body, you learn that the levels of
mRNA that can be obtained from critical tissues are very low, and you find mushrooms in the contents of
the stomach. after examination of the mushrooms, you learn that they are a species of Aminita, and a
search of the Internet reveals that a toxin in this fungus inhibits RNA polymerase. However this isn't very
specific information. to be more certain of the cause of death in this case, you would need to verify that
the alpha-aminitin inhibits which eukaryotic RNA polymerase? - ✔✔RNA polymerase II

a prokaryotic mRNA transcript is - ✔✔translated as it is being transcribed

in eukaryotes, transcription is initiated by the formation of a pre initiation complex of transcription
factors and RNA polymerase at the TATA box of the promoter. give the correct order of the steps below: -
✔✔A: the TFIID complex containing the TATA box binding proteins binds to the TATA box

B: TFIIA and TFIIB bind to the initiation complex

E: TFIIF binds to RNA polymerase and this complex adds to the complex assembling at the TATA box

D: TFIIE and TFIIH bind to the complex, and the helicase function of TRIIH produces a small bubble in the
double-stranded DNA

C: RNA polymerase begins transcribing the sense strand of the DNA producing a complementary RNA

which form of DNA is a left-handed double helix - ✔✔Z-DNA

which of the following catalyzes the synthesis of ribosomal RNA in eukaryotes - ✔✔both RNA
polymerase I and III

, DNA strands are considered antiparallel because the strands are oriented in opposite directions. each
nucleotide strand has a 5'-3' or 3'-5' directionality. What is the basis of this DNA polynucleotide
directionality? - ✔✔the phosphodiester linkage points of the nucleotides: linking the 5' carbon and 3' -
OH group of each unit

bacterial mRNAs are polycistronic, whereas eukaryotic mRNAs are monocistronic. Polycistronic means
that - ✔✔bacterial mRNAs contain coding information for multiple genes

a cell biologist found that two different proteins with largely different structures were translated from
two different mRNAs. these mRNAs however were transcribed from the same gene in the cell nucleus.
which mechanism below could best account for this? - ✔✔exons from the same gene could be spliced in
different ways to make different mRNAs

different mRNA molecules can have poly(A) tails of different lengths and this affects the lifetime of the
mRNA molecule in the cell. Longer poly(A) tails means the mRNA is present for a greater time in the cell.
why do you think this is? - ✔✔the poly(A) tail protects the mRNA from being degraded by 3'
exonucleases

in humans, the cell that is fertilized by a sperm is the - ✔✔secondary oocyte

self-cleaving RNAs that function catalytically are called - ✔✔ribozymes

a rho-independent terminator - ✔✔forms a hairpin loop during termination

which of the following steps is responsible for the production of an active spliceosome during the
splicing of introns? - ✔✔dissociation of the U4 snRNP from the spliceosome complex is the activating
step leading to removal of the intron, the formation of a "lariat" and an mRNA with the intron spliced
out

the following figure shows the transcribed region of a typical eukaryotipicprotein coding gene. what is
the size in bases (bp) of the fully processed, mature mRNA? assume a poly(A) tail of 200 A's in
calculations - ✔✔376

(200 A's, + 100 + 50 + 25 exon bps)

Dit zijn jouw voordelen als je samenvattingen koopt bij Stuvia:

Bewezen kwaliteit door reviews

Studenten hebben al meer dan 850.000 samenvattingen beoordeeld. Zo weet jij zeker dat je de beste keuze maakt!

In een paar klikken geregeld

Geen gedoe — betaal gewoon eenmalig met iDeal, Bancontact of creditcard en je bent klaar. Geen abonnement nodig.

Focus op de essentie

Studenten maken samenvattingen voor studenten. Dat betekent: actuele inhoud waar jij écht wat aan hebt. Geen overbodige details!

Veelgestelde vragen

Wat krijg ik als ik dit document koop?

Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.

Tevredenheidsgarantie: hoe werkt dat?

Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.

Van wie koop ik deze samenvatting?

Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper hussle. Stuvia faciliteert de betaling aan de verkoper.

Zit ik meteen vast aan een abonnement?

Nee, je koopt alleen deze samenvatting voor $7.99. Je zit daarna nergens aan vast.

Is Stuvia te vertrouwen?

4,6 sterren op Google & Trustpilot (+1000 reviews)

Afgelopen 30 dagen zijn er 68175 samenvattingen verkocht

Opgericht in 2010, al 15 jaar dé plek om samenvattingen te kopen

Start met verkopen

Laatst bekeken door jou

Samenvatting ·

(0)