BioChem C785 - WGU - Module 1 - all
questions with correct answers
DNA |replication |is |semiconservative, |which |allows |each |of |the |2 |strands |to |serve |as |a |template
|for |the |new |strands |- |CORRECT |ANSWER✔✔-true
Recall |that |the |DNA |polymerase |must |bind |a |double-stranded |polymer |before |it |can |start |
making |its |own |DNA |polymer. |What |helps |the |DNA |polymerase |to |overcome |this |problem |in |
DNA |replication? |- |CORRECT |ANSWER✔✔-RNA |primers
Several |components |of |cigarette |smoke, |including |benzopyrene, |insert |themselves |into |the |
DNA |and |lead |to |several |types |of |mutations |such |as |frameshift |mutations, |including |both |
insertions |and |deletion. |Which |repair |pathway |would |be |used |to |repair |this |type |of |damage? |-
|CORRECT |ANSWER✔✔-Nucleotide |Excision |Repair
Maternal |smoking |during |pregnancy |is |hazardous |yet |common |in |many |places. |Many |studies |
have |associated |prenatal |smoking |to |unhealthy |physical |and |psychological |outcomes |for |the |
baby. |Researchers |know |that |maternal |smoking |affects |are |epigenetic |in |nature. |Which |event |
can |be |considered |epigenetic |in |nature? |- |CORRECT |ANSWER✔✔-Changes |in |chromatin |
structure
Blood |is |what |type |of |inheritance? |- |CORRECT |ANSWER✔✔-codominance
What |is |the |probability |that |a |child |will |have |an |autosomal |dominant |disease |if |their |father |is |
heterozygous |for |the |allele |and |their |mother |is |homozygous |for |the |normal |allelle? |- |CORRECT |
ANSWER✔✔-50%
What |is |the |complementary |DNA |strand |for |the |DNA |sequence |5'-ATT |CGG |GCT |CCC |- |3' |- |
CORRECT |ANSWER✔✔-5'- |GGG |AGC |CCG |AAT |- |3'
, A |research |scientist |is |trying |to |create |a |new |strain |of |bacteria |that |can |produce |a |protein |
needed |for |her |research. |What |molecule |will |act |as |a |template |in |creating |the |new |protein? |- |
CORRECT |ANSWER✔✔-messenger |RNA |(mRNA)
What |is |1 |direct |effect |of |inhibiting |translation? |- |CORRECT |ANSWER✔✔-the |production |of |
proteins |would |stop
How |many |amino |acids, |and |which |ones, |would |be |encoded |by |the |following |mRNA |sequence:
|5'- |AUGACUCCCGGG |-3' |- |CORRECT |ANSWER✔✔-4: |MET, |THR, |PRO, |GLY
Promoters |are |DNA |sequences |near |the |start |of |a |gene |that |are |recognized |by |transcription |
factors |which |recruit |RNA |polymerase |to |that |gene |for |expression. |This |is |an |important |aspect |
of |transcriptions |but |not |part |of |the |mRNA |processing. |- |CORRECT |ANSWER✔✔-true
You |are |designing |a |piece |of |DNA |for |a |project |and |must |select |the |appropriate |nitrogenous |
bases. |Which |combination |of |nitrogenous |bases |would |you |find |most |suitable |for |your |work? |-
|CORRECT |ANSWER✔✔-Adenine, |Guanine, |Thymine, |Cytosine
The |DNA |sequence |is |3'-ATGATCCTT-5' |is |part |of |the |template |strand |during |DNA |replication. |
What |is |the |correct |sequence |for |the |newly |made |DNA? |- |CORRECT |ANSWER✔✔-5'-
TACTAGGAA-3'
RNA |nucleotides |include |the |bases |A, |U, |C, |and |G. |RNA |is |single |stranded |and |contains |a |
ribose |sugar |in |the |sugar-phosphate |backbone. |There |are |several |types |of |RNA |in |the |cell, |
including |mRNA, |rRNA, |and |tRNA |- |CORRECT |ANSWER✔✔-true
What |would |be |the |resulting |mRNA |sequence? |Kevin's |opsin |gene |at |nucleotide |positions |936 |
to |941: |5'-GCCTAG-3' |(coding |strand) |and |3'-CGGATC-5' |(template |strand) |- |CORRECT |
ANSWER✔✔-The |sequence |is |the |same |as |the |coding: |5'-CGGUAG-3'
questions with correct answers
DNA |replication |is |semiconservative, |which |allows |each |of |the |2 |strands |to |serve |as |a |template
|for |the |new |strands |- |CORRECT |ANSWER✔✔-true
Recall |that |the |DNA |polymerase |must |bind |a |double-stranded |polymer |before |it |can |start |
making |its |own |DNA |polymer. |What |helps |the |DNA |polymerase |to |overcome |this |problem |in |
DNA |replication? |- |CORRECT |ANSWER✔✔-RNA |primers
Several |components |of |cigarette |smoke, |including |benzopyrene, |insert |themselves |into |the |
DNA |and |lead |to |several |types |of |mutations |such |as |frameshift |mutations, |including |both |
insertions |and |deletion. |Which |repair |pathway |would |be |used |to |repair |this |type |of |damage? |-
|CORRECT |ANSWER✔✔-Nucleotide |Excision |Repair
Maternal |smoking |during |pregnancy |is |hazardous |yet |common |in |many |places. |Many |studies |
have |associated |prenatal |smoking |to |unhealthy |physical |and |psychological |outcomes |for |the |
baby. |Researchers |know |that |maternal |smoking |affects |are |epigenetic |in |nature. |Which |event |
can |be |considered |epigenetic |in |nature? |- |CORRECT |ANSWER✔✔-Changes |in |chromatin |
structure
Blood |is |what |type |of |inheritance? |- |CORRECT |ANSWER✔✔-codominance
What |is |the |probability |that |a |child |will |have |an |autosomal |dominant |disease |if |their |father |is |
heterozygous |for |the |allele |and |their |mother |is |homozygous |for |the |normal |allelle? |- |CORRECT |
ANSWER✔✔-50%
What |is |the |complementary |DNA |strand |for |the |DNA |sequence |5'-ATT |CGG |GCT |CCC |- |3' |- |
CORRECT |ANSWER✔✔-5'- |GGG |AGC |CCG |AAT |- |3'
, A |research |scientist |is |trying |to |create |a |new |strain |of |bacteria |that |can |produce |a |protein |
needed |for |her |research. |What |molecule |will |act |as |a |template |in |creating |the |new |protein? |- |
CORRECT |ANSWER✔✔-messenger |RNA |(mRNA)
What |is |1 |direct |effect |of |inhibiting |translation? |- |CORRECT |ANSWER✔✔-the |production |of |
proteins |would |stop
How |many |amino |acids, |and |which |ones, |would |be |encoded |by |the |following |mRNA |sequence:
|5'- |AUGACUCCCGGG |-3' |- |CORRECT |ANSWER✔✔-4: |MET, |THR, |PRO, |GLY
Promoters |are |DNA |sequences |near |the |start |of |a |gene |that |are |recognized |by |transcription |
factors |which |recruit |RNA |polymerase |to |that |gene |for |expression. |This |is |an |important |aspect |
of |transcriptions |but |not |part |of |the |mRNA |processing. |- |CORRECT |ANSWER✔✔-true
You |are |designing |a |piece |of |DNA |for |a |project |and |must |select |the |appropriate |nitrogenous |
bases. |Which |combination |of |nitrogenous |bases |would |you |find |most |suitable |for |your |work? |-
|CORRECT |ANSWER✔✔-Adenine, |Guanine, |Thymine, |Cytosine
The |DNA |sequence |is |3'-ATGATCCTT-5' |is |part |of |the |template |strand |during |DNA |replication. |
What |is |the |correct |sequence |for |the |newly |made |DNA? |- |CORRECT |ANSWER✔✔-5'-
TACTAGGAA-3'
RNA |nucleotides |include |the |bases |A, |U, |C, |and |G. |RNA |is |single |stranded |and |contains |a |
ribose |sugar |in |the |sugar-phosphate |backbone. |There |are |several |types |of |RNA |in |the |cell, |
including |mRNA, |rRNA, |and |tRNA |- |CORRECT |ANSWER✔✔-true
What |would |be |the |resulting |mRNA |sequence? |Kevin's |opsin |gene |at |nucleotide |positions |936 |
to |941: |5'-GCCTAG-3' |(coding |strand) |and |3'-CGGATC-5' |(template |strand) |- |CORRECT |
ANSWER✔✔-The |sequence |is |the |same |as |the |coding: |5'-CGGUAG-3'
