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genetics exam 4 Questions and answers
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genetics exam 4 Questions and answers
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genetics exam 4 Questions and answersaccording to the work done on females in Sweden, what is the sensitive period for
transgenerational epigenetic changes in human females?
A) when she is adult and has become of reproductive age
B) during fetal development when she is starting to produce eggs
C) immediately after birth when she is dependent upon her mother
D) females do not have a sensitive period - only males do - Answer-B
the first commercial product using recombinant DNA technology was
A) human insulin
B) glow in the dark zebrafish
C) florescent pigs
D) none of the above. recombinant DNA technology has not yet been achieved -
Answer-A
genetic technologies are possible because
A) all organisms use the exact same proteins
B) the genetic code is universal
C) the DNA sequence of all organisms on earth is known
D) mRNA can be transferred from one species to another - Answer-B
According to epigenetic researchers, do young twins or older twins show greater
epigenetic similarities?
A) young twins
B) older twins - Answer-A
Angelman's syndrome and Prader-Willi syndrome bot result from a deletion in
chromosome #15. Angelman's syndrome results when the deletion is inherited
_______________ while Prader-Willi syndrome results when the mutation is inherited
______________
A) non-mendelian; mendelian
B) mendelian; non-mendelian
C) maternally; paternally
D) paternally; maternally - Answer-C
bioremediation is
A) the use of an organism's engineered abilities to remove toxins from environment
B) a method of creating healthier wild organisms
, C) the use of genetic technology to make organisms better adapted to their
environments
D) the process of placing a healthy version of a gene into a person with a genetic
disease - Answer-A
many of the first genetically engineered organisms were made to be florescent (for
example, tobacco plants and fish). the value of creating these florescent organisms is
that
A) laboratories are usually dark places and florescence helps the scientists to see
B) florescent organisms are highly prized by collectors of bizarre creatures and they are
willing to pay a lot of money for them
C) the florescence makes it obvious if the gene has been activated
D) we one day hope to create florescent humans so we no longer need artificial lighting
and this will help stop global warming - Answer-C
transgenic organisms are
A) organisms with a genetic change in each cell (usually a gene from a different
species)
B) not in existence yet- they are hypothetical technology
C) organisms with supernatural abilities
D) organisms with both male and female reproductive organs - Answer-A
_______________ recognize specific nucleotide sequences ands cut DNA at those
sequences
A) ligases
B) vectors
C) restriction enzymes
D) DNA polymerases - Answer-C
which of the following statements is a legitimate criticisms of gene therapy?
A) some gene therapies are an attempt to "improve" people and this was the goal of the
eugenics movement
B) gene therapy trials have had limited success and have sometimes resulted in making
people sicker or resulting in their death
C) gene therapy has no potential ti cure people of genetic diseases
D) both A and B - Answer-D
germline therapy differs from somatic gene therapy in that
A) with germline therapy non inheritable genes are implanted into certain cells and
tissues
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