Exam (elaborations)

ETS major field test in biology Exam Questions and Answers

0 view 0 purchase

Course
2024/2025

Institution
2024/2025

ETS major field test in biology Exam Questions and Answers Pyrimidine dimers formed in DNA due to UV radiation can be repaired by? SOS repair Double strand break repair Mismatch repair Photoreactivation repair (nucleotide excision repair) Base excision repair - Answer-Photoreactivation repai...

[Show more]

Preview 4 out of 63 pages

View example

Uploaded on October 15, 2024
Number of pages 63
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

ets major field test in biology exam questions and

Institution 2024/2025
Course 2024/2025

$12.49

Added

Add to cart Add to wishlist

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED. FIRST PUBLISH OCTOBER 2024.

ETS major field test in biology Exam
Questions and Answers

Pyrimidine dimers formed in DNA due to UV radiation can be repaired by?

SOS repair

Double strand break repair

Mismatch repair

Photoreactivation repair (nucleotide excision repair)

Base excision repair - Answer✔✔-Photoreactivation repair (nucleotide excision repair)

Which of the following repair mechanisms uses methyl groups to distinguish between parental

and daughter strands?

Answers:

Mismatch repair

Photoreactivation repair (Nucleotide excision repair)

SOS repair

Page 1/63

,EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED. FIRST PUBLISH OCTOBER 2024.

Double strand break repair

Base excision repair - Answer✔✔-Mismatch repair

Which of the following types of molecules is always found in virions?

Answers:

Protein

RNA

Lipid

DNA

Carbohydrate - Answer✔✔-Protein

A Barr body found within the female mammalian cell's nucleus is an example of ___

Answers:

Euchromatin

Polytene chromosome

Pseudogenes

Heterochromatin

Cistron - Answer✔✔-Heterochromatin

Page 2/63

,EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED. FIRST PUBLISH OCTOBER 2024.

In vertebrate genes, transcription regulatory regions that contain CpG islands are inactivated by

which CpG modification?

Answers:

Methylation

Ubiquitination

Acetylation

Phosphorylation

Myristoylation - Answer✔✔-Methylation

TATA-binding protein (TBP) is a key transcription factor in eukaryotes. A schematic

representation of the 240-amino acid TBP of yeast is shown in Fig. 1 below, with the positions of

2 mutations indicated. The boxed area represents the evolutionarily conserved C-terminal

domain of TBP, and the shaded (dark) regions of this domain represent two repeated elements

involved in DNA binding. One mutation (P65S) changes proline 65 to serine and the other I143N

changes isoleucine 143 to asparagine. Fig. 2 below represents autoradiographs of gels

containing RNA transcripts produced in extracts of wild type or mutant cells. Lanes 1-2 are from

wild-type yeast (WT), lanes 3-4 are from the I143N mutant and lanes 5-6 are from P65S mutant,

as indicated. Fig. 2A shows transcripts of a gene transcribed by RNA polymerase I (Pol I). Fig. 2B

shows transcripts of a gene transcribed by RNA polymerase II (Pol II). Fig. 2C shows transcripts -

Answer✔✔-Whether mutant transcription phenotypes are due to perturbation of TBP function.

Page 3/63

, EMILLECT 2024/2025 ACADEMIC YEAR ©2024 EMILLECT. ALL RIGHTS RESERVED. FIRST PUBLISH OCTOBER 2024.

A set of genes from Bacillus subtilis that encode the proteins required for sporulation have

conserved DNA sequences -35 and -10 nucleotides before the site of transcript initiation.

However, the sequence at -35 is different from that seen in most other genes from that species.

Which of the following best explains this difference?

Answers:

Transcription of these genes is induced by cAMP

Translation of the mRNAs transcribed from these genes requires specific ribosomes that

recognize a modified Shine-Dalgarno sequence

A novel sigma factor is required for transcription initiation at these genes

The -35 sequence is the binding site for a repressor of transcription

The replication of these genes requires a specifically modified DNA polymerase. - Answer✔✔-A

novel sigma factor is required for transcription initiation at these genes

Which of the following repair mechanisms is often mutagenic?

Answers:

Mismatch repair

Photoreactivation repair (Nucleotide excision repair)

Base excision repair

SOS repair - Answer✔✔-SOS repair

Page 4/63

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Emillect. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $12.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79223 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling

Popular Universities in the United States

Popular books

Find notes and summaries for these qualifications