BIOL 3001 Midterm Exam Questions With
Correct Answers
Pedigree |- |CORRECT |ANSWER✔✔-chart |that |shows |the |presence |or |absence |of |a |trait |
according |to |the |relationships |within |a |family |across |several |generations
Complete |Penetrance |- |CORRECT |ANSWER✔✔-The |gene |or |genes |for |a |trait |are |expressed |in |
all |the |population |who |have |the |genes
Incomplete |Penetrance |- |CORRECT |ANSWER✔✔-the |genetic |trait |is |expressed |in |only |part |of |
the |population
3 |assumptions |when |determining |the |mode |of |inheritance |- |CORRECT |ANSWER✔✔-1. |The |
trait |displays |Complete |Penetrance.
2. |The |trait |is |considered |Rare-in-Population.
3. |The |traits |you |examine |are |not |Y-Linked.
Pedigree |symbols: |A |transparent |circle |- |CORRECT |ANSWER✔✔-Unaffected |female
Pedigree |symbols: |A |transparent |square |- |CORRECT |ANSWER✔✔-unaffected |male
Pedigree |symbols: |filled |circle |- |CORRECT |ANSWER✔✔-affected |female
Pedigree |symbols: |filled |square |- |CORRECT |ANSWER✔✔-affected |male
Pedigree |symbols: |diamond |- |CORRECT |ANSWER✔✔-gender |not |specified
, Pedigree |symbols: |line |through |square, |circle, |or |diamond |- |CORRECT |ANSWER✔✔-deceased |
individual
Pedigree |symbols: |have |filled |square |or |circle |- |CORRECT |ANSWER✔✔-carrier |individual |
(usually |heterozygous)
Pedigree |symbols: |two |shapes |branching |from |the |same |node |- |CORRECT |ANSWER✔✔-
dizygotic |twins
Pedigree |symbols: |two |shapes |branching |from |the |same |node |with |extra |line |connecting |them
|- |CORRECT |ANSWER✔✔-monozygotic |twins
Pedigree |symbols: |black |arrow |pointing |to |square, |circle, |or |diamond |on |tree |- |CORRECT |
ANSWER✔✔-proband: |individual |who |prompted |pedigree
Pedigree |symbols: |Brackets |around |an |individual |- |CORRECT |ANSWER✔✔-adopted |individual
Patterns |that |indicate |autosomal |recessive |trait |- |CORRECT |ANSWER✔✔-- |both |parents |of |the |
affected |individual |must |be |unaffected |
-the |trait |skips |a |generation |or |it |may |disappear |and |reappear |across |generations
Patterns |that |indicate |autosomal |dominant |trait |- |CORRECT |ANSWER✔✔--Trait |appears |in |
every |generation
-an |affected |individual |must |have |at |least |one |affected |parent
-affected |individuals |will |usually |have |an |affected |offspring
Patterns |that |indicate |x-linked |dominant |trait |- |CORRECT |ANSWER✔✔--More |females |than |
males |are |affected, |as |females |have |two |chances |to |receive |the |trait |(XX)
-An |affected |individual |must |have |at |least |one |affected |parent |
Correct Answers
Pedigree |- |CORRECT |ANSWER✔✔-chart |that |shows |the |presence |or |absence |of |a |trait |
according |to |the |relationships |within |a |family |across |several |generations
Complete |Penetrance |- |CORRECT |ANSWER✔✔-The |gene |or |genes |for |a |trait |are |expressed |in |
all |the |population |who |have |the |genes
Incomplete |Penetrance |- |CORRECT |ANSWER✔✔-the |genetic |trait |is |expressed |in |only |part |of |
the |population
3 |assumptions |when |determining |the |mode |of |inheritance |- |CORRECT |ANSWER✔✔-1. |The |
trait |displays |Complete |Penetrance.
2. |The |trait |is |considered |Rare-in-Population.
3. |The |traits |you |examine |are |not |Y-Linked.
Pedigree |symbols: |A |transparent |circle |- |CORRECT |ANSWER✔✔-Unaffected |female
Pedigree |symbols: |A |transparent |square |- |CORRECT |ANSWER✔✔-unaffected |male
Pedigree |symbols: |filled |circle |- |CORRECT |ANSWER✔✔-affected |female
Pedigree |symbols: |filled |square |- |CORRECT |ANSWER✔✔-affected |male
Pedigree |symbols: |diamond |- |CORRECT |ANSWER✔✔-gender |not |specified
, Pedigree |symbols: |line |through |square, |circle, |or |diamond |- |CORRECT |ANSWER✔✔-deceased |
individual
Pedigree |symbols: |have |filled |square |or |circle |- |CORRECT |ANSWER✔✔-carrier |individual |
(usually |heterozygous)
Pedigree |symbols: |two |shapes |branching |from |the |same |node |- |CORRECT |ANSWER✔✔-
dizygotic |twins
Pedigree |symbols: |two |shapes |branching |from |the |same |node |with |extra |line |connecting |them
|- |CORRECT |ANSWER✔✔-monozygotic |twins
Pedigree |symbols: |black |arrow |pointing |to |square, |circle, |or |diamond |on |tree |- |CORRECT |
ANSWER✔✔-proband: |individual |who |prompted |pedigree
Pedigree |symbols: |Brackets |around |an |individual |- |CORRECT |ANSWER✔✔-adopted |individual
Patterns |that |indicate |autosomal |recessive |trait |- |CORRECT |ANSWER✔✔-- |both |parents |of |the |
affected |individual |must |be |unaffected |
-the |trait |skips |a |generation |or |it |may |disappear |and |reappear |across |generations
Patterns |that |indicate |autosomal |dominant |trait |- |CORRECT |ANSWER✔✔--Trait |appears |in |
every |generation
-an |affected |individual |must |have |at |least |one |affected |parent
-affected |individuals |will |usually |have |an |affected |offspring
Patterns |that |indicate |x-linked |dominant |trait |- |CORRECT |ANSWER✔✔--More |females |than |
males |are |affected, |as |females |have |two |chances |to |receive |the |trait |(XX)
-An |affected |individual |must |have |at |least |one |affected |parent |
