MOLECULAR BIOLOGY EXAM 1 STUDY GUIDE WITH COMPLETE SOLUTIONS
5 views 0 purchase
Course
MOLECULAR BIOLOGY
Institution
MOLECULAR BIOLOGY
MOLECULAR BIOLOGY EXAM 1 STUDY GUIDE WITH COMPLETE SOLUTIONSMOLECULAR BIOLOGY EXAM 1 STUDY GUIDE WITH COMPLETE SOLUTIONSMOLECULAR BIOLOGY EXAM 1 STUDY GUIDE WITH COMPLETE SOLUTIONS
In the 1944 experiment by Avery et al., only ___ was able to transform a nonvirulent strain of bacteria into a virule...
MOLECULAR BIOLOGY EXAM 1 STUDY
GUIDE WITH COMPLETE SOLUTIONS
In the 1944 experiment by Avery et al., only ___ was able to transform a nonvirulent
strain of bacteria into a virulent one, thereby demonstration that it is likely the ___.
A) protein; chromosomal material
B) genetics; protein material
C) amino acid; DNA material
D) DNA; genetic material - ANSWER-D) DNA; genetic material
Hershey and Chase (1952) blender experiment demonstrated that
A) protein is not required for virus production
B) viral coat proteins can enter the infected bacterial cells
C) Reverse transcription is important for viral infection
D) DNA carries the genetic information for viral reproduction - ANSWER-D) DNA carries
the genetic information for viral reproduction
If a DNA fragment contains 42 base pairs, which of the following is true?
A) the DNA length is 3.8 nm
B) DNA has 84 hydrogen bonds
C) the DNA has four minor grooves and four major grooves
D) the diameter of the DNA is 22 angstroms - ANSWER-C) the DNA has four minor
grooves and four major grooves
In a piece of DNA which of the following is true?
A) A+T = G+C
B) A+G = C+T
C) A=C
D) Both A and B - ANSWER-B) A+G = T+C
Which of the following statements is false?
A) the two strands of a DNA helix are identical in sequence
B) the two strands of a DNA helix are identical in base numbers
C) the two strands of a DNA helix are identical in length
D) the two strands of a DNA helix are identical in hydrogen bond numbers - ANSWER-
A) the two strands of a DNA helix are identical in sequence
The following proportions exist in DNA: C=G, A=T
A) Yes, this is Chargaff's Rule
B) No, it is A=C, G=T
C) False, C>G, A>T
D) None of the above are correct - ANSWER-A) Yes this is Chargaff's Rule
, H2A and H3 histones in humans
A) both contain N-terminal tails that can be chemically modified
B) are small and rich in arginines and lysines
C) are very similar in amino acid sequence to H2A and H3 in horses
D) all of the above - ANSWER-D) all of the above
The most common DNA binding domain found in proteins is the
A) helix-turn-helix
B) dimerization domains
C) beta-sheet
D) CAP domain - ANSWER-A) helix-turn-helix
Which of the reasons listed below explains the ability of RNA to fold into more complex
structures than DNA?
A) RNA has a second -OH group when compared to DNA
B) RNA contains uracil, which can pair to both A and G
C) unlike DNA< RNA can form triple base pairs
D) All of the above - ANSWER-D) All of the above
In a beta-sheet, the R groups of the amino acid residues
A) form an alpha-helix
B) are found poking out of the top and bottom of the sheet
C) cause only parallel sheets to form
D) generate the hydrogen bonds that form the sheet - ANSWER-B) are found poking
out of the top and bottom of the sheet
Chromodomains bing:
A) acetylated histones
B) methylated histones
C) only non-acetylated and non-methylated histones
D) phosphorylated histones - ANSWER-B) methylated histones
The major groove of a DNA double helix
A) Presents a wide variety of chemical groups to proteins
B) Is not much different from the minor groove
C) Is distinctive in prokaryotes but not eukaryotes
D) Is the site of histone/DNA interactions - ANSWER-A) Presents a wide variety of
chemical groups to proteins
In a DNA chain, the nitrogenous base is attached to the ___ carbon of ribose
A) 4'
B) 3'
C) 2'
D) 1' - ANSWER-D) 1'
Which of the following statements are true with regard to protein-DNA interactions?
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 NursingTutor1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
