Elephant seals are a sexually dimorphic species of marine mammal that lives off the coast of California. The females, which weigh around 1000 lbs, are much smaller than the males, which may weigh up to 5000 lbs. Suppose that scientists measured the weight of three adult female elephant seals and their female offspring. Parent Weight 920 999 1014 Offspring Weight 742 780 787 Calculate the narrow sense heritability, h², of weight for female elephant seals to two decimal places. h²: What conclusions can be drawn from these data? Neither genetic nor environmental factors are important in determining the weight of female elephant seals. Environmental factors far outweigh genetic factors in determining the weight of female elephant seals. Genetic factors far outweigh environmental factors for determining the weight of female elephant seals. Both genetic and environmental factors are important in determining the weight of female elephant seals.

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
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Elephant seals are a sexually dimorphic species of marine mammal that lives off the coast of California. The females,
which weigh around 1000 lbs, are much smaller than the males, which may weigh up to 5000 lbs. Suppose that scientists
measured the weight of three adult female elephant seals and their female offspring.
Parent Weight
920
999
1014
Offspring Weight
742
780
787
Calculate the narrow sense heritability, h², of weight for female elephant seals to two decimal places.
h²:
What conclusions can be drawn from these data?
Neither genetic nor environmental factors are important in determining the weight of female elephant seals.
Environmental factors far outweigh genetic factors in determining the weight of female elephant seals.
Genetic factors far outweigh environmental factors for determining the weight of female elephant seals.
Both genetic and environmental factors are important in determining the weight of female elephant seals.
Transcribed Image Text:Elephant seals are a sexually dimorphic species of marine mammal that lives off the coast of California. The females, which weigh around 1000 lbs, are much smaller than the males, which may weigh up to 5000 lbs. Suppose that scientists measured the weight of three adult female elephant seals and their female offspring. Parent Weight 920 999 1014 Offspring Weight 742 780 787 Calculate the narrow sense heritability, h², of weight for female elephant seals to two decimal places. h²: What conclusions can be drawn from these data? Neither genetic nor environmental factors are important in determining the weight of female elephant seals. Environmental factors far outweigh genetic factors in determining the weight of female elephant seals. Genetic factors far outweigh environmental factors for determining the weight of female elephant seals. Both genetic and environmental factors are important in determining the weight of female elephant seals.
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