3. How does the chance of a coin landing on each side compare to the chance that a gamete will receive a particular gene at meiosis? 4. Why must two coins be used to determine the genotype of the offspring?

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3. How does the chance of a coin landing on each side compare to the chance that a gamete will
receive a particular gene at meiosis?
4. Why must two coins be used to determine the genotype of the offspring?
Transcribed Image Text:3. How does the chance of a coin landing on each side compare to the chance that a gamete will receive a particular gene at meiosis? 4. Why must two coins be used to determine the genotype of the offspring?
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 wll
be used: height and seed color.
2. Mark one side of two coins T (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 willbe 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: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 wll be used: height and seed color. 2. Mark one side of two coins T (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 willbe 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.
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