Bats with the B allele OR the S allele suck blood. But bats who are bbss don't suck blood. You cross two blood-sucking bats, and notice that 15/16 of their offspring suck blood, and 1/16 don't. a) (1) What were the genotypes of each parent? (Hint: see the text fig 3.21) b) (2) If you take one of the parents (whose genotype you figured out in part a), and test cross the parent (i.e. mate that parent to -well, you know what a test cross is, right?), what ratio of blood suckers to nonblood suckers will you get

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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(A)
aa BB aa ВЬ
aa bb
Unmodified ratio
AA bb Aa bb
AA BB AA Bb Aa BBAA Bb
9:3:3:1
1
1
1 2
2 4
1
3
3
1
Color below shows phenotypic expression
Modified F2 ratio
(B)
9.
3
3.
1
12:3:1
6.
3.
3
10 :3:3
6.
3.
3
1
9:6:1
3.
1
9:4:3
9.
1
15 :1
6.
3
13:3
3.
1
12:4
10:6
1
9:7
E 3.21 Modified F, dihybrid ratios In each rou diffo
3.
Transcribed Image Text:(A) aa BB aa ВЬ aa bb Unmodified ratio AA bb Aa bb AA BB AA Bb Aa BBAA Bb 9:3:3:1 1 1 1 2 2 4 1 3 3 1 Color below shows phenotypic expression Modified F2 ratio (B) 9. 3 3. 1 12:3:1 6. 3. 3 10 :3:3 6. 3. 3 1 9:6:1 3. 1 9:4:3 9. 1 15 :1 6. 3 13:3 3. 1 12:4 10:6 1 9:7 E 3.21 Modified F, dihybrid ratios In each rou diffo 3.
Bats with the B allele OR the S allele suck blood. But bats who are bbss don't suck
blood. You cross two blood-sucking bats, and notice that 15/16 of their offspring suck blood, and 1/16
don't.
a) (1) What were the genotypes of each parent? (Hint: see the text fig 3.21)
b) (2 ) If you take one of the parents (whose genotype you figured out in part a), and test cross the
parent (i.e. mate that parent to -well, you know what a test cross is, right?), what ratio of blood
suckers to nonblood suckers will you get
Transcribed Image Text:Bats with the B allele OR the S allele suck blood. But bats who are bbss don't suck blood. You cross two blood-sucking bats, and notice that 15/16 of their offspring suck blood, and 1/16 don't. a) (1) What were the genotypes of each parent? (Hint: see the text fig 3.21) b) (2 ) If you take one of the parents (whose genotype you figured out in part a), and test cross the parent (i.e. mate that parent to -well, you know what a test cross is, right?), what ratio of blood suckers to nonblood suckers will you get
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