1. In our classroom for most traits, were there more students with dominant or recessive phenotype? 2. Was there an instance where there were more students with dominant phenotype but more recessive alleles? (q larger than p?) 3. How is this possible?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1. In our classroom for most traits, were there more students with dominant or recessive phenotype?

2. Was there an instance where there were more students with dominant phenotype but more recessive alleles? (q larger than p?)

3. How is this possible?

Trait
Dominant allele
Recessive allele
Homozygous
dominant (AA)
Heterozygotes
(А)
2pq
Homozygous
(A)
(а)
recessive (aa)
p2
q2
Tongue rolling
1-0.4%=D06
JOz0.4
(0.6)* - 0 36 2(06)(0.4)=0.18 T
*0.2
18
Earlobe
1-06 =04 Jo0.6
Jouo.6
(O.4)? -0.16 04
81
2(04)(0.6)-0.48
Thumb
Jo 2=0.4
(0.6)レ-0 36
2106X04)-04802
18
1-0.4=06
Hair Line
|- 08 - 0 2 Joz 0.8 (02)"- o 04 2(02)08)=0.32 0.7
2(02)08)30.32
18
(o2)-004
Finger Hair
1-08-02 Jo.6x0.8 (0.1)ー-0.04 2102)68)-032
C0.1)と-0.04
2lo )08)-0 32 10 - 0.6
0.6 % 0.8
son Education, Inc.
Transcribed Image Text:Trait Dominant allele Recessive allele Homozygous dominant (AA) Heterozygotes (А) 2pq Homozygous (A) (а) recessive (aa) p2 q2 Tongue rolling 1-0.4%=D06 JOz0.4 (0.6)* - 0 36 2(06)(0.4)=0.18 T *0.2 18 Earlobe 1-06 =04 Jo0.6 Jouo.6 (O.4)? -0.16 04 81 2(04)(0.6)-0.48 Thumb Jo 2=0.4 (0.6)レ-0 36 2106X04)-04802 18 1-0.4=06 Hair Line |- 08 - 0 2 Joz 0.8 (02)"- o 04 2(02)08)=0.32 0.7 2(02)08)30.32 18 (o2)-004 Finger Hair 1-08-02 Jo.6x0.8 (0.1)ー-0.04 2102)68)-032 C0.1)と-0.04 2lo )08)-0 32 10 - 0.6 0.6 % 0.8 son Education, Inc.
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