A species of butterfly shows variation in the length of the antennae. You measure antennae in a butterfly population and find the mean to be 15 mm. You calculate a heritability of antennae length to be 1 (h? = 1). That summer, there is a severe drought. Many of the butterflies die and only a few survive to reproduce. The surviving butterflies have a mean antennae length of 17 mm. a) What is the predicted mean limb-length of the offspring of the surviving butterflies? [ Select ] b) What type of selection was acting on antennae length in these butterflies? [ Select ] c) Five years later, you go back and measure antennae length in this butterfly population again. Every butterfly in the population has antennae measuring 16 mm. What is the heritability of antennae length in this population now? [ Select ]
A species of butterfly shows variation in the length of the antennae. You measure antennae in a butterfly population and find the mean to be 15 mm. You calculate a heritability of antennae length to be 1 (h? = 1). That summer, there is a severe drought. Many of the butterflies die and only a few survive to reproduce. The surviving butterflies have a mean antennae length of 17 mm. a) What is the predicted mean limb-length of the offspring of the surviving butterflies? [ Select ] b) What type of selection was acting on antennae length in these butterflies? [ Select ] c) Five years later, you go back and measure antennae length in this butterfly population again. Every butterfly in the population has antennae measuring 16 mm. What is the heritability of antennae length in this population now? [ Select ]
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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Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
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![A species of butterfly shows variation in the length of the antennae. You measure antennae in a
butterfly population and find the mean to be 15 mm. You calculate a heritability of antennae length to
be 1 (h2 = 1).
%3D
That summer, there is a severe drought. Many of the butterflies die and only a few survive to
reproduce. The surviving butterflies have a mean antennae length of 17 mm.
a) What is the predicted mean limb-length of the offspring of the surviving butterflies?
[ Select ]
b) What type of selection was acting on antennae length in these butterflies?
[ Select ]
c) Five years later, you go back and measure antennae length in this butterfly population again. Every
butterfly in the population has antennae measuring 16 mm. What is the heritability of antennae length
in this population now? [Select ]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F688553c1-a29d-4d73-a765-adb59e2cd2b6%2Fcb5eb6ba-7712-49f6-90f8-2dff4f9b401e%2F9ecgl7_processed.png&w=3840&q=75)
Transcribed Image Text:A species of butterfly shows variation in the length of the antennae. You measure antennae in a
butterfly population and find the mean to be 15 mm. You calculate a heritability of antennae length to
be 1 (h2 = 1).
%3D
That summer, there is a severe drought. Many of the butterflies die and only a few survive to
reproduce. The surviving butterflies have a mean antennae length of 17 mm.
a) What is the predicted mean limb-length of the offspring of the surviving butterflies?
[ Select ]
b) What type of selection was acting on antennae length in these butterflies?
[ Select ]
c) Five years later, you go back and measure antennae length in this butterfly population again. Every
butterfly in the population has antennae measuring 16 mm. What is the heritability of antennae length
in this population now? [Select ]
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