BIO 123 PROBABILITY AND GENETICS LAB REPORT AND ANSWERS.

Stuvia.com - The Marketplace to Buy and Sell your Study Material




BIO 123 PROBABILITY AND GENETICS LAB REPORT AND
ANSWERS




Downloaded by: Ariah |
Distribution of this document is illegal

, Stuvia.com - The Marketplace to Buy and Sell your Study Material




PROBABILITY AND GENETICS LAB REPORT AND ANSWERS


1. Based on the parents' genotypes, what is the genotypic ratio expected from a
monohybrid cross between the two parents for the trait?
The genotype of both parents is Bb. Hence, after monohybrid cross, the genotype ratio can be
determined as follows:

The F1 generation will have genotype ratio BB:Bb:bb= 1:2:1.
B b

B BB Bb

b Bb bb




m
er as
2. Based on the genotypic ratio from question 1, what is the expected probability of each




co
genotype?




eH w
 25%




o.
BB
rs e
ou urc
 50%
Bb
o

 25%
aC s


bb
vi y re



3. Toss the coins together 50 times and keep a tally sheet while doing so. They can only turn
up as BB, Bb, or bb. Remember: each coin represents each parent and each toss can only
ed d




turn up one way, therefore, a parent can give only one gene of a pair. How many tally's for
ar stu




each genotype did you get?
1. BB
2. Bb
3. bb
is
Th




BB = 15
Bb = 24
bb = 11
sh




This study source was downloaded by 100000826342158 from CourseHero.com on 05-21-2021 18:03:20 GMT -05:00


https://www.coursehero.com/file/18121034/BIO-123-PROBABILITY-AND-GENETICS-LAB-REPORT-AND-ANSWERS/


Downloaded by: Ariah |
Distribution of this document is illegal