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Human Genetics

 

Margaret E. Vorndam, M.S. Version 42-0068-00-01

 

Lab Report Assistant                                                                                            

 

Thisdocumentisnotmeanttobeasubstitute foraformallaboratoryreport.TheLabReport Assistantissimplyasummaryoftheexperiment’squestions,diagramsifneeded,anddatatables thatshouldbeaddressedinaformallabreport.Theintentistofacilitatestudents’writingoflab reports by providing this informationin an editable filewhich can be sent to an instructor.

 

 

 

Observations                                                                                                           

 

DataTable 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

XX Female

XX

XX

XX

XX

XX

XX

XX

XX

8

XY Male

XY

XY

XY

XY

XY

XY

XY

7

FF,Ff = unattached

F

F

F

F

F

5

ff= attached

ff

ff

ff

ff

ff

ff

ff

ff

ff

ff

10

RR,Rr = roller

R

R

R

R

R

R

R

R

R

9

rr = can’t roll

rr

rr

rr

rr

rr

rr

6

SS,Ss = straight thumb

S

S

S

S

S

S

S

S

8

ss = bent thumb

ss

ss

ss

ss

ss

ss

ss

7

MM,Mm = hair

M

M

M

M

M

M

M

7

mm = no hair

mm

mm

mm

mm

mm

mm

mm

mm

8

TT,Tt = lefton top

T

T

T

T

T

T

T

T

8

tt= right on top

tt

tt

tt

tt

tt

tt

tt

7

LL,Ll = two tendons

L

L

L

L

L

L

L

7

ll = three tendons

ll

ll

ll

ll

ll

ll

ll

ll

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

XYFRSMTL
		XYFRsMtL
XYFrSMTL
XXFrsmTl
			XYFrsmtl
XYfRSMtl
				XYfRsMTL
XXfRsmtl
		XXfrSMTL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Exercise 1: Patternsin Human Inheritance Traits

Questions                                                                                                                 

 

1. A. What observationscan be made about the collected and charted data?

 

 

 

1. Are any two people exactly the same? If so, how closely are they related?

 

 

 

 

 

 

 

1. Isyourhypothesissupportedbythefindings?Whatstatisticaltoolmighthelpyoutomake

this decision?

 

 

 

1. D. Inthetotalsthatyourecordedin Table1,didyoufindthatthenumberofdominantphenotypes were greater than, equal to, or less than the recessive phenotypes?

 

 

 

 

 

 

 

 

 

 

 

 

1. Canyouexplainwhatpossiblegenotypesaresuggestedbythispattern?Doesthisvaryby

trait?

 

 

 

 

 

1. F. Would youexpectthis outcome?Whyorwhynot?

 

 

 

 

 

 

 

 

1. Howwouldchangingthelevelofthemappedtraitsaffectthechart?Forinstance,ifthealleles for male or female were onthe outer rim of the chart, rather thaninthe middle,how wouldthe patternobserved differfrom Figure 10-1?

 

 

 

1. List several other traits that humans have that are governed by genetics.

 

 

 

 

 

1. Would your data vary if you went to another part of the world, for instance, China?

 

 

 

 

 

 

 

1. J. Why might collected data show differentpatternsfor differentcultural populations?

 

 

 

 

 

1. Wouldyouexpectthatthepatternwouldbedifferentifcollected100yearsagoinsteadof

today?Whyorwhynot?

 

 

 

 

 

 

 

1. Ifyouhadpercentagesofdominantandrecessivegenespresentforthetotalnumberof allelesofatraitfortheentireworld,wouldyouexpectthatpercentagetochangeover100years? Whyorwhynot?

 

 

 

 

 

 

Laboratory Summary                                                                                           

 

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