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13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwa pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellou round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants?

13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwa pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellou round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants?

Human Anatomy & Physiology (11th Edition)
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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Section 5: Trihybrid cross and Laws of probability For a trihybrid cross, in which inheritance of alleles for three genes is tracked, drawing a Punnett square that combines all three genes may not be practical. Instead the laws of probability may be used. The product law of probabilities says that when alleles for separate genes segregate independently, we can figure out the probability of a particular combined genotype by multiplying the probability of the alleles for each gene. 13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwarf pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellow, round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants? b. What are the expected F2 ratios (use fractions) of yellow and green seeds? c. What are the expected F2 ratios (use fractions) of round and wrinkled seeds? d. What are the possible F2 combined phenotypes and their expected ratios (probabilities)?
Transcribed Image Text:Section 5: Trihybrid cross and Laws of probability For a trihybrid cross, in which inheritance of alleles for three genes is tracked, drawing a Punnett square that combines all three genes may not be practical. Instead the laws of probability may be used. The product law of probabilities says that when alleles for separate genes segregate independently, we can figure out the probability of a particular combined genotype by multiplying the probability of the alleles for each gene. 13. We cross a homozygous tall pea plant with yellow, round seeds to a homozygous dwarf pea plant with green, wrinkled seeds. All the F1 offspring are all tall plants with yellow, round seeds. a. What are the expected F2 ratios (use fractions) of tall and dwarf plants? b. What are the expected F2 ratios (use fractions) of yellow and green seeds? c. What are the expected F2 ratios (use fractions) of round and wrinkled seeds? d. What are the possible F2 combined phenotypes and their expected ratios (probabilities)?
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