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Given the following sequence 5’ – TGT – 3’, the notation 3’ refers to what, specifically?

a.A free hydroxyl group on deoxyribose at position 3 on the ring

b.A free hydroxyl group on thymine at position 3 on the ring

c.A free phosphate group on deoxyribose at position 3 on the ring

d.A free phosphate group on thymine at position 3 on the ring

e.Position 3 of thymine is attached to the sugar of the nucleotide

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Beverley Smith
Beverley SmithLv2
10 May 2019
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Related questions

31. Why does incorporation of a dideoxynucleotide into a growingDNA polymer terminate strand synthesis?

a. There is no longer a free 5’phosphate to which to add the next nucleotide.

b. There is no longer a free 3’ hydroxyl to which to add thenext nucleotide.

c. There is no longer a free 3’ phosphate to which to add thenext nucleotide.

d. There is no longer a free 5’ hydroxyl to which to add thenext nucleotide.

2. The output from an automatedsequencing reaction shows a series of fluorescent peaks. Whenconsidering the data output, why are some peaks larger thanothers?

a. Chain termination occurred more frequently at the basecorresponding to a large peak, producing a relatively largerfluorescent signal.

b. The primer had multiple bases fluorescently labeled forproducts corresponding to the larger peaks.

c. More bases were fluorescently labeled in the DNA strandscorresponding to the larger peaks.

d. Some fluorescent colors are brighter than others.

3. What allows chain terminationto occur at each base of the template during an automatedsequencing reaction?

a. the presence of a relatively low concentration of ddNTPs

b. the presence of a relatively low concentration of dNTPs

c. the presence of a relatively high concentration of ddNTPs

d. the presence of a relatively high concentration of dNTPs

4. In automated fluorescent sequencing, what would happen if thefluorescently labeled ddATP was inadvertently omitted from thereaction?

a. DNA polymerase does not function without equal concentrationsof the four nucleotides

b there would be gaps in the sequence where thymines werepresent in the template DNA strand

c. the sequence would end where the first thymine wasencountered on the template DNA strand

d. the sequence would end where the first adenine should beincorporated

1. Unlike DNA, RNA contains

deoxyribose

a double strand

phosphates

uracil

Nucleic acid structure

2. In transcription, uracil will bond with:

thymine

cytosine

adenine

guanine

Transcription

3. The first team of scientist to document the structure of DNA was:

Franklin and Wilkins

Watson and Crick

Pauling and Chargoff

None of the above

DNA structure

4. Organelles that synthesize protein are:

lysosomes

ribosomes

endoplasmic reticulum

golgi bodies

5. Most of the time in a cell's life, it's DNA is in the form of:

Chromatin

Chromatids

Replicated chromosomes

Spindle fibers

6. Uracil is a nitrogen base that pairs with adenine. Using this information, one could conclude that uracil is a:

Purine

Pyrimidine

Neither a purine or pyrimidine

Not enough information

7. a nucleotide does not consist of a:

polymerase

5-carbon sugar

phosphate group

nitrogen base

8. The genetic code in DNA of an individual depends on the sequence (order) of:

nucleotides

purines only

phosphates

sugars

9. Before a cell divides, it must duplicate its DNA in a process known as:

translation

transformation

transcription

replication

10. The basic unit (building block) of a protein is a (an):

carbohydrate

amino acid

lipid

hydrogen bond

11. Unlike DNA, RNA contains:

deoxyribose

a double strand

phosphates

uracil

12. The structure of DNA was first documented in:

1945

1953

1956

1962

13. In DNA replication, the new molecules produced are:

of unequal length

both assembled in the same direction

built with purines as the backbone

assembled in opposite directions

DNA replication

14. The "backbone" of DNA is composed of:

ribose and phosphates

deoxyribose and phosphates

ribose and uracil

deoxyribose and thymine

DNA structure

15. RNA differs from DNA in which of the following ways?

RNA is single-stranded

RNA contains ribose

RNA does not contain thymine

All of the above

DNA structure

16. Which of the following is NOT required for the transcription process itself?

RNA polymerase

DNA

uracil-containing nucleotides

ribosomes

1. What is the basic structure of a DNA nucleotide? What is the basic structure of a molecule of DNA?

Include: How are the carbons on the deoxyribose numbered? What do these numbers have to do with the 5’ and 3’ designations on a DNA strand?

2. If the sequence of one strand of a DNA molecule is: 5’ – TATGC – 3’

Write out the sequence of bases on the complementary strand and indicate which end is 5’ vs 3’?

3. DNA is a very stable molecule. What characteristics of its structure make it stable?

4. If 20% of the nitrogenous bases in the DNA of a guinea pig cell is adenine, what percentage is cytosine? Explain your answer. Which experiment/scientist led to this understanding?

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