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Hey, can you help me once more with my bio quiz? Thanks :) DNA...

Hey, can you help me once more with my bio quiz? Thanks :) 

DNA REPLICATION


Question 1 (5 points)


If a strand of DNA of sequence 5'-TGGACCTAGACC-3' is replicated, which of the following accurately represents the newly synthesized DNA strand?

Question 1 options:

5 -'ACCUGGUTCTGG - 3'

3'-ACCTGGATCTGG-5'

3'-ACCUGGUTCTGG-5'

5'-ACCTGGATCTGG-3'


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STRUCTURE OF DNA


Question 2 (5 points)


Which of the following is not a component of nucleotides, the building blocks of DNA?

Question 2 options:

deoxyglucose

inorganic phosphate

nitrogenous base

deoxyribose


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Question 3 (5 points)


The nitrogenous base thymine is what type of base?

Question 3 options:

monoamine

purine

pyrimidine

amino acid

Question 4 (5 points)


Which of the following accurately shows DNA base pairing and hydrogen bond number?

Question 4 options:

Adenine—Thymine, 2 hydrogen bonds

Adenine—Thymine, 3 hydrogen bonds

Cytosine - Guanine, 2 hydrogen bonds

Cytosine - Guanine,  4 hydrogen bonds


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TRANSCRIPTION


Question 5 (5 points)


What is the name of the process that produces RNA using a gene as a template?

Question 5 options:

transcription

translation

transposition

replication


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DNA POLYMERASE


Question 6 (5 points)


What is the part of the gene called where the DNA polymerase first binds during transcription? 

Question 6 options:

promoter

repressor

operon

inducer

Question 7 (5 points)


What does the process of post-translational control refers to?

Question 7 options:

regulation of gene expression after transcription

regulation of gene expression after translation

control of epigenetic activation

period between transcription and translation


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TRANSLATION


Question 8 (5 points)


In the process of translation, the amino acids are arranged to form specific proteins because they are attached to:

Question 8 options:

rRNA

tRNA

mRNA

DNA

Question 9 (5 points)



Use the genetic code to determine which amino acids the following mRNA sequence code for: 

AAA GCG GAA

Question 9 options:

Lys, Phe, Trp

Trp, Phe, Lys

Lys, Ala, Glu

Glu, Ala, Lys

Question 10 (5 points)


If a DNA strand with the sequence TAG CAT GAT CCC TAT is transcribed, which of the following accurately represents the newly synthesized mRNA strand?

Question 10 options:

AUC GUA CUA GGG AUA

ATC GTA CTA GGG ATA

AUG CUA GUA CCC AUA

TAG CAT GAT CCC TAT


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Question 11 (5 points)


An individual has a mutation in the gene that codes for brown eye color. This results in blue eyes. Choose the correct explanation for how this mutation affects the individual's traits.

Question 11 options:

The error in the DNA sequence results in an error in the mRNA molecule during transcription, the error in the mRNA molecule results in an incorrect nucleic acid in the brown pigment protein which makes it non-functional. The resulting trait is blue eyes.

The error in the DNA sequence results in an error in the mRNA molecule during transcription, the error in the mRNA molecule results in an incorrect amino acid in the brown pigment protein which makes it non-functional. The resulting trait is blue eyes.

The error in the mRNA sequence results in an error in the DNA molecule during transcription, the error in the DNA molecule results in an incorrect amino acid in the brown pigment protein which makes it non-functional.  The resulting trait is blue eyes.

The error in the mRNA sequence results in an error in the DNA molecule during transcription, the error in the DNA molecule results in an incorrect nucleic acid in the brown pigment protein which makes it non-functional.  The resulting trait is blue eyes.


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RNA METABOLISM


Question 12 (5 points)


What is the name given to the portions of eukaryotic mRNA sequence that are removed during RNA processing?

Question 12 options:

exons

caps

poly - A tails

introns


Question 13 (5 points)


Which of the following applies best to post-translational control?

Question 13 options:

regulation of gene expression after transcription

regulation of gene expression after translation

control of epigenetic activation

period between transcription and translation


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DNA PACKAGING


Question 14 (5 points)


Which of the following statements is TRUE  regarding DNA packaging in a prokaryotic cell?

Question 14 options:

DNA is wrapped around proteins known as histones to form structures called nucleosomes

DNA is wrapped tightly around a histone core

DNA is twisted in what is known as supercoiling without histones

Nucleosomes containing DNA are linked to each other by a short strand of DNA that is free of histones. 


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Question 15 (5 points)


Which of the options listed below can serve to carry a gene from one organism into a bacteria cell?

Question 15 options:

A plasmid

An electrophoresis gel

A restriction enzyme

Polymerase chain reaction


Question 16 (5 points)


What is a genetically modified organism (GMO)?

Question 16 options:

A plant with certain genes added that mimic naturally occurring genes for that plant

An organism with an artificially altered genome

An organism made of proteins from two different organisms

An animal produced by artificial selection


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Question 17 (5 points)


What kind of diseases are studied using genome-wide association studies?

Question 17 options:

Viral diseases

Single-gene inherited diseases

Diseases caused by multiple genes

Diseases caused by environmental factors.


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Question 18 (5 points)


What is the role of Agrobacterium tumefaciens in the production of transgenic plants?

Question 18 options:

Genes from Agrobacterium tumefaciens are inserted into plant DNA to give the plant different desired traits.

Transgenic plants have been given resistance to the pest Agrobacterium tumefaciens.

Agrobacterium tumefaciens is used as a vector to move genes into plant cells.

Plant genes are incorporated into the genome of Agrobacterium tumefaciens.


Question 19 (5 points)


Which of the following statements about genetically modified organisms (GMOS) are correct? Select all that apply.

Question 19 options:

Transgenic bacteria are used to produce protein for human consumption.

Transgenic mice are frequently used to study the effects of gene mutations.

Transgenic goats have been engineered with a human gene that produces blood anticoagulant protein.

Transgenic bacteria are used to produce human growth hormone.


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Question 20 (5 points)


What is proteomics?

Question 20 options:

The study of all the genes in an organism

The study of prostate cancer

The study of the function of all proteins in an organism

A disease caused by the lack of protein in the diet

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