Biol 133 exam 3 questions with correct
answers
All |genes |are |expressed |continuously |at |the |same |levels. |- |CORRECT |ANSWER✔✔-false
Epigenetic |changes |alter |the |base |sequence |of |a |DNA |molecule. |- |CORRECT |ANSWER✔✔-false
It |is |always |an |advantage |to |be |a |low |stress |(non-anxious) |rat. |- |CORRECT |ANSWER✔✔-false
epigenetic |changes |- |CORRECT |ANSWER✔✔-pass |from |one |cell |generation |to |the |next |but |do |
not |alter |the |DNA |sequence.
which |of |the |following |statements |about |globin |chain |switching |is |most |accurate? |- |CORRECT |
ANSWER✔✔-after |birth, |B |chain |production |increases |and |y |chain |production |decreases
Hemoglobin |carries |oxygen |in |the |blood |to |cells |and |tissues. |Which |form |of |hemoglobin |(fetal |
vs. |adult) |do |you |predict |has |a |higher |affinity |for |oxygen? |- |CORRECT |ANSWER✔✔-fetal |
fetal |hemoglobin: |gamma |and |alpha
adult |hemoglobin: |alpha |and |beta
sickle |cell |disease |is |the |result |of |a |mutation |in |the |B |globin |gene. |Will |a |fetus |show |sickling |of
|their |red |blood |cells? |- |CORRECT |ANSWER✔✔-no
, hydroxyurea |is |used |to |treat |sickle |cell |and |is |a |drug |that |turns |on |transcription |of |fetal |
hemoglobin. |This |drug |increases |the |proportion |of |..... |globin |chains. |- |CORRECT |ANSWER✔✔-
gamma
C-reactive |protein |(CRP) |is |a |common |blood |test |to |test |for |infections |or |signs |of |inflammation
|due |to |heart |disease |or |other |diseases. |A |patient |has |a |CRP |test |done |to |determine |her |heart |
disease |risk |and |the |result |is |12mg/L. |What |do |you |recommend? |- |CORRECT |ANSWER✔✔-
relax |and |get |retested |she |most |likely |has |an |infection
This |is |data |from |a |sleep |deprivation |study. |What |does |this |data |suggest? |- |CORRECT |
ANSWER✔✔-Sleep |deprivation |results |in |increased |c-reactive |protein.
Transcription |factors |account |for |a |greater |proportion |of |the |proteome |in |a |fetus |compared |to |
a |20-year-old |because |- |CORRECT |ANSWER✔✔-cells |are |actively |differentiating, |and |many |
structures |are |forming |in |a |fetus.
The |main |limitation |of |a |drug |that |treats |disease |by |altering |chromatin |remodeling |is |that |- |
CORRECT |ANSWER✔✔-it |would |change |the |expression |of |many |other |genes.
Which |metaphors |correctly |compare |chromatin |remodeling |and |microRNA |function? |- |
CORRECT |ANSWER✔✔-An |on/off |switch |and |a |dimmers |switch
Which |of |the |following |is |true |of |the |role |of |histones |in |gene |expression? |- |CORRECT |
ANSWER✔✔-When |bound |by |certain |chemical |groups, |histones |expose |DNA |to |allow |
transcription
a |mutation |always |causes |a |mutant |phenotype |- |CORRECT |ANSWER✔✔-false
This |pedigree |shows |the |inheritance |of |Huntington's |disease |in |a |family. |What |does |this |
pedigree |suggest? |- |CORRECT |ANSWER✔✔-the |affected |individual |experienced |a |somatic |
mutation
answers
All |genes |are |expressed |continuously |at |the |same |levels. |- |CORRECT |ANSWER✔✔-false
Epigenetic |changes |alter |the |base |sequence |of |a |DNA |molecule. |- |CORRECT |ANSWER✔✔-false
It |is |always |an |advantage |to |be |a |low |stress |(non-anxious) |rat. |- |CORRECT |ANSWER✔✔-false
epigenetic |changes |- |CORRECT |ANSWER✔✔-pass |from |one |cell |generation |to |the |next |but |do |
not |alter |the |DNA |sequence.
which |of |the |following |statements |about |globin |chain |switching |is |most |accurate? |- |CORRECT |
ANSWER✔✔-after |birth, |B |chain |production |increases |and |y |chain |production |decreases
Hemoglobin |carries |oxygen |in |the |blood |to |cells |and |tissues. |Which |form |of |hemoglobin |(fetal |
vs. |adult) |do |you |predict |has |a |higher |affinity |for |oxygen? |- |CORRECT |ANSWER✔✔-fetal |
fetal |hemoglobin: |gamma |and |alpha
adult |hemoglobin: |alpha |and |beta
sickle |cell |disease |is |the |result |of |a |mutation |in |the |B |globin |gene. |Will |a |fetus |show |sickling |of
|their |red |blood |cells? |- |CORRECT |ANSWER✔✔-no
, hydroxyurea |is |used |to |treat |sickle |cell |and |is |a |drug |that |turns |on |transcription |of |fetal |
hemoglobin. |This |drug |increases |the |proportion |of |..... |globin |chains. |- |CORRECT |ANSWER✔✔-
gamma
C-reactive |protein |(CRP) |is |a |common |blood |test |to |test |for |infections |or |signs |of |inflammation
|due |to |heart |disease |or |other |diseases. |A |patient |has |a |CRP |test |done |to |determine |her |heart |
disease |risk |and |the |result |is |12mg/L. |What |do |you |recommend? |- |CORRECT |ANSWER✔✔-
relax |and |get |retested |she |most |likely |has |an |infection
This |is |data |from |a |sleep |deprivation |study. |What |does |this |data |suggest? |- |CORRECT |
ANSWER✔✔-Sleep |deprivation |results |in |increased |c-reactive |protein.
Transcription |factors |account |for |a |greater |proportion |of |the |proteome |in |a |fetus |compared |to |
a |20-year-old |because |- |CORRECT |ANSWER✔✔-cells |are |actively |differentiating, |and |many |
structures |are |forming |in |a |fetus.
The |main |limitation |of |a |drug |that |treats |disease |by |altering |chromatin |remodeling |is |that |- |
CORRECT |ANSWER✔✔-it |would |change |the |expression |of |many |other |genes.
Which |metaphors |correctly |compare |chromatin |remodeling |and |microRNA |function? |- |
CORRECT |ANSWER✔✔-An |on/off |switch |and |a |dimmers |switch
Which |of |the |following |is |true |of |the |role |of |histones |in |gene |expression? |- |CORRECT |
ANSWER✔✔-When |bound |by |certain |chemical |groups, |histones |expose |DNA |to |allow |
transcription
a |mutation |always |causes |a |mutant |phenotype |- |CORRECT |ANSWER✔✔-false
This |pedigree |shows |the |inheritance |of |Huntington's |disease |in |a |family. |What |does |this |
pedigree |suggest? |- |CORRECT |ANSWER✔✔-the |affected |individual |experienced |a |somatic |
mutation
