The color of a dragonfly body is determined by a single gene. Two dragonflies homozygous for blue coloration (meaning they have two copies of the blue allele) produce a single offspring with brown coloration. Brown color appeared in this offspring as a result of Gene flow Bottleneck effect Genetic drift OMutation

The color of a dragonfly body is determined by a single gene. Two dragonflies homozygous for blue coloration (meaning they have two copies of the blue allele) produce a single offspring with brown coloration. Brown color appeared in this offspring as a result of Gene flow Bottleneck effect Genetic drift OMutation

Name: The color of a dragonfly body is determined by a single gene. Two dra
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Description: The color of a dragonfly body is determined by a single gene. Two dragonflieshomozygous for blue coloration (meaning they have two copies of the blue allele)produce a single offspring with brown coloration. Brown color appeared in thisoffspring as a

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter13: Patterns In Inherited Traits

Section: Chapter Questions

Problem 6GP: In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele...

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In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele for red flowers (p). An allele for long pollen grains (L) is dominant when paired with a recessive allele for round pollen grain (l). Bateson and Punnett crossed a plant having purple flowers/long pollen grains with one having white/flowers/round pollen grains. All F1 offspring had purple flowers and long pollen grains. Among the F2 generation, the researchers observed the following phenotypes: 296 purple flowers/long pollen grains 19 purple flowers/round pollen grains 27 red flowers/long pollen grains 85 red flowers/round pollen grains What is the best explanation for these results?
Different species of crickets have distinct songs, andthey use these songs for mate recognition. Researcherscrossed two species of Hawaiian crickets (Laupala paranigra and L. kohalensis) whose songs are distinguishedby pulse rate (the number of pulses per second; Shaw etal., Molecular Ecology 16, 2007, 2879–2892.) Then, theymapped QTL in the F2 population derived from thiscross. Six autosomal QTL were detected. The mean traitvalues (pulses per second) at the three genotypic classesin the F2 for each QTL are shown in the table below,where P indicates the L. paranigra allele and K indicatesthe L. kohalensis allele.a. Calculate the additive (A) and dominance (D) effectsand the D/A ratio for each of the six QTL.b. Which of these QTL shows the greatest amount ofdominance?c. Which of these has the largest additive effect?d. The mean pulse rate for L. kohalensis is 3.72, and it is0.71 for L. paranigra. Do all six QTL act in the expecteddirection with the L. kohalensis allele conferring a…
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