Explanation:

When identify complementary strands, there space a few important points to consider. First, remember that uracil is only found in RNA. We have the right to eliminate any kind of answer selections that save uracil. Second, remember the DNA is anti-parallel. This means that the 3" end of the template strand must enhance up v the 5" finish of the safety strand. Flip any type of answers that have actually both 3" ends together. Finally, make sure that the bases align correctly. Adenine and also thymine should constantly pair and cytosine and also guanine should constantly pair.

You are watching: In rna, adenine always pairs with the nitrogen base known as

Template strand: 3"-ATTGC-5’

Complementary strand is antiparallel: 5"-_ _ _ _ _-3"

Complementary strand must have right base pairs: 5"-TAACG-3"

An alternate method of creating this answer would certainly be 3"-GCAAT-5". This answer would certainly still it is in correct! it would simply need to it is in flipped, as in the second step outlined above.


Report an Error

Example inquiry #32 : Dna and Rna structure


Which the the following could be a segment that DNA?


Possible Answers:

5"-CTAGAG-3"

3"-GATCTC-5"


5"-GTCGAT-3"

3"-GATCTC-5"


5"-CTCGTG-3"

3"-AATGTA-5"


5"-CTCGTG-3"

3"-GATCTC-5"


5"-AGATAG-3"

3"-GATCTC-5"


Correct answer:

5"-CTAGAG-3"

3"-GATCTC-5"


Explanation:

DNA is a dual stranded molecule the is antiparallel, definition the 5" end of one strand matches up with the 3" finish of the other strand. Nitrogenous bases organize the strands together via hydrogen bonding. These bases room adenine (A), thymine (T), guanine (G), and cytosine (C). Adenine (A) have the right to only pair with thymine (T), and guanine (G) can only pair through cytosine (C).

The exactly answer presents 2 strands that space antiparallel and show appropriate binding patterns.

5"-CTAGAG-3"

3"-GATCTC-5"

All other answers have actually an error in base pairing or ordering.


Report an Error

Example question #33 : Dna and also Rna framework


Which the the following defines the components of a nucleotide? 


Possible Answers:

A phosphate group, a pentose sugar, and also an amino acid 


A phosphate group, a hexose sugar, and a nitrogenous base 


A phosphate group, a pentose sugar, and a nitrogenous base


ATP, a pentose sugar, and a nitrogenous base 


ATP, a hexose sugar, and also an amino acid 


Correct answer:

A phosphate group, a pentose sugar, and a nitrogenous base


Explanation:

Nucleic mountain are one of the main organic macromolecules, and also include DNA and RNA. A nucleotide is a DNA monomer, if a ribonucleotide is an RNA monomer. Numerous nucleotides room bonded with each other by phosphodiester bond to form a solitary molecule of DNA. The pattern of nucleotides is used to store and transmit hereditary information. A nucleotide is composed of a phosphate group, a nitrogenous base, and a pentose sugar (deoxyribose).


Report an Error

Example question #34 : Dna and Rna framework


Which that the following DNA primers has actually the lowest melting point?


Possible Answers:

AGGTGGACACCG


GCCACAGGTGGA


CATGCGTAGATC


GCGGATGTGTCC


TGACAAACTTGT


Correct answer:

TGACAAACTTGT


Explanation:

Cytosine and guanine kind three hydrogen bonds through each other, if adenine and tyrosine only type two hydrogen bonds. This means that strands of DNA v a higher percentage the cytosine and also guanine will have higher melting points.

Since us are searching for the sequence with the lowest melt point, we want the lowest percentage of cytosine and guanine, and also the highest possible percentage the adenine and also thymine.


Report one Error

Example inquiry #35 : Dna and Rna structure


A ar of double-stranded DNA is composed of 35% adenin bases. What is the percentage of cytosine bases in the ar of DNA?


Possible Answers:

*


*


*


More details is essential in order come answer the question



Correct answer:


Explanation:

Since we understand that 35% of the bases in the section of DNA space adenine, we have the right to conclude the 35% that the bases space thymine. This is due to the fact that adenine will constantly pair v thymine, for this reason there will certainly be just as many thymine bases together adenine bases. Together, adenine and thymine compose 70% that the segment.

*

*

This way that 30% of the ar is composed of guanine-cytosine pairs.

*

Since these two bases will be equal in quantity, 15% that the DNA ar will it is in cytosine bases.

*


Report an Error

Example question #36 : Dna and Rna framework


In a sample of DNA, 30% that the bases are found to it is in guanine. What portion of the bases in the sample space thymine?


Possible Answers:

*


Correct answer:

*


Explanation:

Guanine will pair v cytosine. Native this knowledge, we can assume that there will be one equal number of guanine and cytosine residues in the sample. Every guanine must have actually a cytosine counterpart.

*

The complete composition of the DNA sample should be accounted because that by the sum of every the bases.

*

Use the well-known values because that guanine and cytosine to find the amount of adenine and also thymine.

*

*

Like cytosine and guanine, adenine and thymine must be present in equal amounts in order to kind proper basic pairs. We can reasonably assume that fifty percent of the remaining DNA will consist of each residue.

*


Report one Error

Example question #37 : Dna and Rna framework


An evaluation of a DNA sample indicates it includes 35% adenine. What percent of the sample would be cytosine? 


Possible Answers:
Correct answer:

*


Explanation:

There are four nitrogenous bases found in DNA: adenine, thymine, cytosine, and guanine. Adenine constantly binds with thymine, and cytosine always binds with guanine.

Since certain bases always appear in pairs, they will have actually equal percentages of the DNA composition. The percentage of adenine will equal the percentage of thymine, and the percent of cytosine will equal the percent of guanine. Together, these percentages will include to 100%.

*

We understand that the sample is 35% adenine, which tells us that that is also 35% thymine.

*

*

We understand that cytosine and also guanine pair together and will be present in same amounts, so we deserve to divide this final total by 2 to find our answer.

*

The sample is 35% adenine, 35% thymine, 15% guanine, and also 15% cytosine.


Report one Error

Example question #38 : Dna and Rna structure


A strand of DNA was measured to contain 22% adenine. What is the DNA"s ingredient of the other bases?


Possible Answers:

22% Adenine, 22% Thymine, 28% Cytosine, 28% Guanine


22% Adenine, 22% Cytosine, 28% Guanine, 28% Thymine 


22% Adenine, 22% Guanine, 28% Cytosine, 28% Thymine


22% Adenine, 22% Guanine, 28% Cytosine, 28% Uracil


22% Adenine, 22% Uracil, 28% Cytosine, 28% Guanine


Correct answer:

22% Adenine, 22% Thymine, 28% Cytosine, 28% Guanine


Explanation:

We deserve to use Chargaff"s dominion to discover the remaining compositional percentages. Adenine always pairs v thymine, so your percentages will be equal. Cytosine constantly pairs through guanine, so their percentages will additionally be equal. The sum of all 4 percentages need to equal 100%.

*

We know that the sample is 22% adenine; this tells united state it is additionally 22% thymine.

*

*

*

Since cytosine and also guanine are present in same amounts, we have the right to simply division their sum by 2.

*

*

The final composition is 22% adenine, 22% thymine, 28% cytosine, and 28% guanine.

Uracil is only found in RNA. 


Report an Error

Example concern #39 : Dna and Rna framework


A strand of RNA is written of 20% adenine and 30% guanine.

What is the strand"s ingredient of the other bases?


Possible Answers:

20% Adenine, 30% Guanine, 30% Uracil, 20% Cytosine


20% Adenine, 30% Guanine, 30% Thymine, 20% Cytosine

 


Cannot recognize from the given information


20% Adenine, 30% Guanine, 20% Thymine, 30% Cytosine

 


20% Adenine, 30% Guanine, 20% Uracil, 30% Cytosine

 


Correct answer:

Cannot recognize from the given information


Explanation:

Chargaff"s preeminence only uses to DNA. RNA is single-stranded, and also thus, no basic pairing occurs.

Think of a strand of DNA. Each base pairs through a specific partner, permitting us to recognize their percentages: adenine and thymine are constantly equal, and also cytosine and also guanine are always equal. In RNA, with this pairing absent, over there is no correlation in between the basic percentages. A strand might be 20% adenine, 30% guanine, 5% cytosine, and 45% uracil; we simply cannot draw any type of conclusions.


Report an Error

Example inquiry #40 : Dna and Rna structure


What room the monomers the DNA?


Possible Answers:

Phosphate-sugar backbone


Nitrogen atoms


Deoxyribose sugars


Nucleotides


Correct answer:

Nucleotides


Explanation:

A polymer is a macromolecule that is consisted of of subunits that are recurring or very similar. This subunits are dubbed monomers. DNA is a polymer made up of monomer units called nucleotides. Nucleotides are comprised of a phosphate group, a five-carbon sugar (deoxyribose, in the case of DNA), and a variable nitrogenous base. There room four various nucleotides that make up the polymer of DNA: thymine, cytosine, adenine, and guanine. These four nucleotides belong come two various classes based upon structure. Adenine and also guanine room purines that have two carbon-nitrogen rings. Thymine and also cytosine space pyrimidines that have actually only one carbon-nitrogen ring.


Report an Error
← vault 1 2 3 4 5 6 next →
check out AP biology Tutors
Mikhail Certified tutor
Stony Brook University, Bachelor of Science, Biology, General. American college of the Caribbean college of Medicine, Curre...
view AP biology Tutors
Latasha Certified guardian
University of brand-new Orleans, Bachelor the Science, health Sciences, General. University of Arkansas, physician of Science, cell Phy...

See more: How Much Does Gerard Butler Weigh T Measurements, How Much Does Gerard Butler Weigh


see AP biological Tutors
Onyekachi Certified guardian
The college of Texas at Arlington, Bachelor of Science, Biology, General. The university of Texas in ~ Arlington, grasp of ...

All AP Biology sources


10 Diagnostic tests 419 exercise Tests concern of the job Flashcards discover by principle
Popular Subjects
Chemistry Tutors in san Diego, Calculus Tutors in Dallas fort Worth, MCAT Tutors in Dallas ft Worth, SSAT Tutors in Miami, English Tutors in san Diego, Calculus Tutors in mountain Francisco-Bay Area, GMAT Tutors in Chicago, Chemistry Tutors in brand-new York City, SSAT Tutors in Seattle, action Tutors in Los Angeles
Popular process & Classes
SAT process & class in Phoenix, ISEE process & classes in Atlanta, ISEE courses & class in Chicago, Spanish process & class in Houston, LSAT process & class in Houston, MCAT courses & great in Houston, ACT process & great in Phoenix, ISEE courses & class in Dallas fort Worth, ACT courses & classes in mountain Francisco-Bay Area, ACT courses & great in Los Angeles
Popular check Prep
ACT test Prep in Los Angeles, ACT test Prep in Denver, SSAT test Prep in Denver, ISEE test Prep in Atlanta, sat Test prepare in san Diego, GRE test Prep in Seattle, ACT check Prep in Phoenix, MCAT check Prep in brand-new York City, GMAT check Prep in Washington DC, satellite Test prepare in Atlanta
Report an issue with this inquiry

If you"ve found an concern with this question, please let united state know. With the assist of the ar we can continue to enhance our education resources.


Do not fill in this field
* her Name:
* concern Description:
DMCA complaint

your Infringement an alert may it is in forwarded to the party that made the content obtainable or to 3rd parties such together ChillingEffects.org.

please follow these procedures to file a notice:

girlfriend must encompass the following:

Send your complain to ours designated agent at:

Charles Cohn Varsity Tutors gmbh 101 S. Hanley Rd, Suite 300 St. Louis, MO 63105