26 Jun Human Genetics MargaretE.Vorndam,M.S. Version 42-0068-00-01 LAB REPORTASSISTANT
Question
Human Genetics
MargaretE.Vorndam,M.S.
Version 42-0068-00-01
LAB REPORTASSISTANT
Thisdocumentisnotmeanttobeasubstitute foraformallaboratoryreport.TheLabReport Assistantissimplyasummaryoftheexperiment’squestions,diagramsifneeded,anddatatables that shouldbeaddressedinaformallabreport. Theintentistofacilitatestudent’swriting oflab reports by providing this informationin an editable filewhich can be sent to an instructor
OBSERVATIONS
Data Table 1: Single-gene Traits of a Selected Population
Subject # >
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Total
XXFemale
XX
XYMale
FF,Ff = unattached
ff= attached
ff
RR,Rr = roller
R
rr = can’t roll
SS,Ss = straight thumb
ss = bent thumb
ss
MM,Mm = hair
mm = no hair
mm
TT,Tt = lefton top
T
tt= right on top
LL,Ll = two tendons
L
ll = three tendons
Exercise 1:Patternsin Human Inheritance Traits
QUESTIONS
A. What observationscan be made about the collected and charted data?
B. Are any two people exactly the same? If so, how closely are they related?
C. Isyourhypothesis supportedbythefindings?Whatstatisticaltoolmighthelpyoutomake this decision?
D. Inthetotalsthatyourecordedin Table 1,didyoufindthatthenumberofdominantphenotypes were greater than, equal to, or less than the recessive phenotypes?
E. Can youexplainwhatpossible genotypesaresuggestedbythispattern?Doesthisvaryby trait?
F. Would you expect this outcome? Why or why not?
G. Howwouldchanging thelevelofthemappedtraitsaffectthechart?Forinstance,ifthealleles for male or female were onthe outer rim of the chart, rather thaninthe middle,how wouldthe patternobserved differfrom Figure 10-1?
H. List several other traits that humans have that are governed by genetics.
I. Would your data vary if you went to another part of the world, for instance, China?
J. Why might collected data show differentpatternsfor differentcultural populations?
K. Wouldyouexpectthatthepatternwouldbedifferentifcollected100yearsagoinsteadof today? Why or why not?
L. If you had percentages of dominant and recessive genes present for the total number of allelesofatraitfortheentireworld,wouldyouexpectthatpercentagetochangeover100years? Why or why not?
Exercise2:Human ChromosomesandtheHuman
Genome Project
RESULTS
Report on your findings.Your report should be limited to a page in length and may incorporate the outline of research points above.
QUESTIONS
A. What is the purpose of this exercise?
B. Whatistheprognosisongeneticdiseasesinthefuture?Doyoubelievethatmicrosurgeryto “fix”chromosomalaberrations willsomedaypreventthediseasesthatarelistedintheListof GeneticallyMediated Diseases in Humans?
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