3/9/2016 DEPARTMENT OF BIOTECHNOLOGY NATURE V/S NURTURE Under the guidance of DR.C.K.RAMESH ociate Professor & Chairman epartment of Biotechnology yadri Science college (Auto) Shimogga. Submitted by SACHIN.H 16BT024 I Msc Biotechnology Sahyadri Science College (Auto) Shimogga. SEMINAR ON 10/9/2016
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3/9/2016
DEPARTMENT OF BIOTECHNOLOGY
NATURE V/S NURTUREUnder the guidance of
DR.C.K.RAMESHAssociate Professor & Chairman
Department of BiotechnologySahyadri Science college (Auto)
Shimogga.
Submitted bySACHIN.H16BT024
I Msc BiotechnologySahyadri Science College (Auto)
Shimogga.
SEMINAR ON
10/9/2016
Nature ?
Nature v/s Nurture ?
Nurture ?
ENVIRONMENTAL EFFECTS AND GENE EXPRESSION
1) Temperature
Himalayan Rabbit Siamese cat
Expression of the lobe gene in different individuals in Drosophila melanogaster.
2) Light
Face Freckling
Albino Corn Plant
3) Nutrition
4) Sex
Genetic trait Usual age of onset
Blood group antigens prenatalAlkaptonuria (darkening of urine) Birth
Icthyosis (sex linked) Birth 4-monthsNephrotoxic infantile cystinosis 6-18 months
Vitamin D resistant rickets 1 yearsProgeria (premature aging) 1-2 yearsSevere muscular dystrophy 2-5 yearsJuvenile amaurotic idiocy 5-10 years
Periodic paralysis 10 yearsRotor syndrome (mild jaundice) 12-18 years
Pattern baldness 20-30 yearsPolycystic kidney disease (adult) 30-40 years
Gout 30-50 yearsDiabetes mellitus (adult form) 40-60 years
Alzheimer’s Disease (senile dementia)
50-60 years
5) Age
PHENOCOPY
1) Phocomelia
An environmentally caused trait that appears to be inherited.
Phocomelia is rare genetic disorder whose effects are mimicked by the tetratogen,Thalidomide.
2) Diabetes mellitus
TWIN STUDIES
CONCORDANCE – DISCORDANCEPhenotype/ Trait Identical twins Fraternal twins
Concordance In %
DiscordanceIn %
ConcordanceIn %
DiscordanceIn %
Beginning of sitting up 82 18 76 24Beginning of walking 68 32 31 69
Hair colour 89 11 22 78Eye colour 99.6 0.4 28 72
Blood pressure 63 37 36 64Handedness (left or right) 79 21 77 23
Diabetes mellitus 65 35 18 82Paralytic polio 36 64 6 94
Rickets 88 12 22 78Stomach cancer 27 73 4 96
Mammary cancer 6 94 3 97Cancer of uterus 6 94 0 100
Feeblemindedness 94 6 47 53Schizophrenia 80 20 13 87
Down syndrome 89 11 7 93Criminality 68 32 28 72
Smoking habit 91 9 65 35Alcohol drinking 100 0 86 14Coffee drinking 94 6 79 21
Hansen disease (leprosy) 83 17 17 83
IDENTICAL TWINS REARED APART
TraitIdentical twins
Fraternal twins SiblingsRearedtogether
Rearedapart
Height (cm) 1.7 1.8 4.4 4.5
Weight (lb) 4.1 9.9 10.0 10.4
Head length(mm) 2.9 2.2 6.2 -
Head width (mm 2.8 2.9 4.2 -
Intelligence (Binnet IQ score points)
5.9 8.2 9.9 9.8
Average differences between identical and fraternal twins
NATURE, NURTURE AND INTELLIGENCE
Factors affecting intelligenceSize of the familyBirth orderEarly Development MotherDietary Effects
VARIATION WITHIN PLANT POPULATIONS
Classification
Potentilla glandulosa
Kingdom Planate
order Rosales
Family Rosaceae
Genus Potentilla
Species p.glandulosa
Growth responses by Potentilla glandulosa grown at three elevations
CONCLUSION
&
Thank You…
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