GENETICS: A CONCEPTUAL APPROACH
COMPREHENSIVE SOLVED QUESTIONS AND
COMPLETE ANSWERS
◉ Another genetic testing obstacle is that humans have a ____
generation time.
Answer: long
◉ Generation time in humans is usually about _____.
Answer: 20 years
◉ If geneticists could control human crosses, they would have to
wait on average _____ just to observe the F2 progeny.
Answer: 40 years
◉ Generation time in Drosophila is.
Answer: 2 weeks
◉ Bacteria generation time is.
Answer: 20 minutes
◉ In humans, family size is.
,Answer: small
◉ An extremely large family, in humans, of 10 to 15 children would
not permit the recognition of a.
Answer: dihybrid 9:3:3:1
◉ An important technique used by geneticists to study human
inheritance is the analysis of.
Answer: Pedigrees
◉ A pedigree is.
Answer: a pictorial representation of a family history essentially a
family tree that outlines the inheritance of one or more
characteristics
◉ Males in a pedigree are represented by.
Answer: squares
◉ Females in a pedigree are represented by.
Answer: circles
◉ ____ represents mating.
Answer: Horizontal line drawn between two symbols
, ◉ ____ are connected to their parents by vertical lines extending
downward from the parents.
Answer: children
◉ Waardenburg syndrom.
Answer: autosomal dominant type of deafness that may be
accompanied by fair skin, a white forelock, and visual problems
◉ Persons who exhibit the trait of interest are represented by.
Answer: filled circles and squares
◉ Unaffected members are represented by.
Answer: open circles and squares
◉ Proband.
Answer: The person from whom the pedigree is initiated
◉ Proband is usually designated by.
Answer: an arrow
◉ Each generation in a pedigree is identified by.
COMPREHENSIVE SOLVED QUESTIONS AND
COMPLETE ANSWERS
◉ Another genetic testing obstacle is that humans have a ____
generation time.
Answer: long
◉ Generation time in humans is usually about _____.
Answer: 20 years
◉ If geneticists could control human crosses, they would have to
wait on average _____ just to observe the F2 progeny.
Answer: 40 years
◉ Generation time in Drosophila is.
Answer: 2 weeks
◉ Bacteria generation time is.
Answer: 20 minutes
◉ In humans, family size is.
,Answer: small
◉ An extremely large family, in humans, of 10 to 15 children would
not permit the recognition of a.
Answer: dihybrid 9:3:3:1
◉ An important technique used by geneticists to study human
inheritance is the analysis of.
Answer: Pedigrees
◉ A pedigree is.
Answer: a pictorial representation of a family history essentially a
family tree that outlines the inheritance of one or more
characteristics
◉ Males in a pedigree are represented by.
Answer: squares
◉ Females in a pedigree are represented by.
Answer: circles
◉ ____ represents mating.
Answer: Horizontal line drawn between two symbols
, ◉ ____ are connected to their parents by vertical lines extending
downward from the parents.
Answer: children
◉ Waardenburg syndrom.
Answer: autosomal dominant type of deafness that may be
accompanied by fair skin, a white forelock, and visual problems
◉ Persons who exhibit the trait of interest are represented by.
Answer: filled circles and squares
◉ Unaffected members are represented by.
Answer: open circles and squares
◉ Proband.
Answer: The person from whom the pedigree is initiated
◉ Proband is usually designated by.
Answer: an arrow
◉ Each generation in a pedigree is identified by.
