BSC 170 Exam 4 UPDATED ACTUAL
Exam Questions and CORRECT Answers
genetic factors involved in sexual orientation of males - CORRECT ANSWER - actual
sequence of nucleotides
Xq28
epigenic factors involved in sexual orientation of males - CORRECT ANSWER -
modification of DNA that affects levels of gene expression
Methylation is common mechanism
Can fix genes in on or off configuration
May be temporary or permanent
physiological factors involved in sexual orientation of males - CORRECT ANSWER -
stress
Either of mother or individual may be linked to epigenetic changes
Xq28 and its role in male homosexuality - CORRECT ANSWER - Recently epigenetic
markers were linked to this region
Androgen receptor genes in this region
The current hypothesis explaining why genes encoding homosexuality haven't been lost due to
selective pressure - CORRECT ANSWER - Nurturing uncle hypothesis:
Genes in this region may increase female fecundity
Sisters of gay males have more children
Greater inheritance of family's genes
Traits associated with attractiveness in humans - CORRECT ANSWER - Symmetry and
pheromones
, How pheromones are used in attraction and gender studies - CORRECT ANSWER -
People who are near middle of orientation spectrum may have individual characteristics override
a weaker orientation toward one gender or the other.
The relationship between vaccines and autism - CORRECT ANSWER - none
Wakerfield paper - CORRECT ANSWER - Incorrect belief based on Lancet paper in 1997
that examined 12 children
Paper was later retracted when it was found that the main author Andrew Wakefield had falsified
some of the data
Wakefield had his license to practice medicine revoked
The definition of Autism Spectrum Disorder - CORRECT ANSWER - Autism is defined
as a neurobehavioral condition marked by impairments in social interactions, functional
communications, and/or repetitive behaviors manifesting in early childhood.
Introversion - CORRECT ANSWER - the preference to time alone or in very small groups
to time with many people
Savantism - CORRECT ANSWER - the possession of profound mental or intellectual
abilities well beyond what is considered normal.
The approximate frequency of ASD and why it has changed over time - CORRECT
ANSWER - There is a view that the rate of ASD is undergoing a dramatic increase, but
most evidence suggests that most if not all of increase is better diagnoses schemes.
chromosomal inversions as a genetic cause of ASD - CORRECT ANSWER - Inversion of
regions of chromosomes 4 and 7 are very common in families with ASD
Consistent break points of the inversions means effects of gene expression will be consistent
Exam Questions and CORRECT Answers
genetic factors involved in sexual orientation of males - CORRECT ANSWER - actual
sequence of nucleotides
Xq28
epigenic factors involved in sexual orientation of males - CORRECT ANSWER -
modification of DNA that affects levels of gene expression
Methylation is common mechanism
Can fix genes in on or off configuration
May be temporary or permanent
physiological factors involved in sexual orientation of males - CORRECT ANSWER -
stress
Either of mother or individual may be linked to epigenetic changes
Xq28 and its role in male homosexuality - CORRECT ANSWER - Recently epigenetic
markers were linked to this region
Androgen receptor genes in this region
The current hypothesis explaining why genes encoding homosexuality haven't been lost due to
selective pressure - CORRECT ANSWER - Nurturing uncle hypothesis:
Genes in this region may increase female fecundity
Sisters of gay males have more children
Greater inheritance of family's genes
Traits associated with attractiveness in humans - CORRECT ANSWER - Symmetry and
pheromones
, How pheromones are used in attraction and gender studies - CORRECT ANSWER -
People who are near middle of orientation spectrum may have individual characteristics override
a weaker orientation toward one gender or the other.
The relationship between vaccines and autism - CORRECT ANSWER - none
Wakerfield paper - CORRECT ANSWER - Incorrect belief based on Lancet paper in 1997
that examined 12 children
Paper was later retracted when it was found that the main author Andrew Wakefield had falsified
some of the data
Wakefield had his license to practice medicine revoked
The definition of Autism Spectrum Disorder - CORRECT ANSWER - Autism is defined
as a neurobehavioral condition marked by impairments in social interactions, functional
communications, and/or repetitive behaviors manifesting in early childhood.
Introversion - CORRECT ANSWER - the preference to time alone or in very small groups
to time with many people
Savantism - CORRECT ANSWER - the possession of profound mental or intellectual
abilities well beyond what is considered normal.
The approximate frequency of ASD and why it has changed over time - CORRECT
ANSWER - There is a view that the rate of ASD is undergoing a dramatic increase, but
most evidence suggests that most if not all of increase is better diagnoses schemes.
chromosomal inversions as a genetic cause of ASD - CORRECT ANSWER - Inversion of
regions of chromosomes 4 and 7 are very common in families with ASD
Consistent break points of the inversions means effects of gene expression will be consistent
