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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Transcribed Image Text:Procedure:
1. Stick a piece of masking tape on the four 25 g coins. Make sure that the size of the tape is within the
circumference of the coin. For this purpose, two of Mendel's seven characters of the pea plant will
be used: height and seed color.
2. Mark one side of two coins I (tall allele) and the other side t (short allele). Similarly, mark one side of
the other two coins Y (yellow allele) and the other side y (green allele).
3. Monohybrid Cross. In this part, the height character will be investigated.
a. Get the two coins for height: one coin corresponds to the male and the other coin to the
female. T and t are gametes for tallness and shortness, respectively.
b. Place the two coins in cupped hands, shake them, and toss the coins on your desk.
c. Read and record the coin combinations in your data sheet. Repeat the toss 50 times.
4. Dihybrid Cross. This time, two traits will be considered: height and seed color.
a. Get all four coins, place them in cupped hands, and shake and toss them on your desk.
b. Record the coin combinations in your data sheet and repeat the toss 50 times.
Transcribed Image Text:D. Write the results of your tosses for dihybrid cross here.
Table 1.3. Expected and Observed Genotypes and Phenotypes, Dihybrid Cross.
Number Expected Number Expected Number Observed
for 50 Offspring
Phenotype
Genotype
for 16 Offspring
for 50 Offspring
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