A species of aphid normally breeds and lays its eggs on the new growth of a plant in the month of May. A mutant female grasshopper in the population produces a batch of eggs that carry a new allele that delays sexual development until July. Her offspring feed on the new growth of a different plant that grows later in the season in the same area. Her offspring mate successfully with one another, producing a new generation of July-mating aphids. This new form is a potential candidate for:
A species of aphid normally breeds and lays its eggs on the new growth of a plant in the month of May. A mutant female grasshopper in the population produces a batch of eggs that carry a new allele that delays sexual development until July. Her offspring feed on the new growth of a different plant that grows later in the season in the same area. Her offspring mate successfully with one another, producing a new generation of July-mating aphids. This new form is a potential candidate for:
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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Transcribed Image Text:A species of aphid normally breeds and lays its eggs on the new growth of a plant in
the month of May. A mutant female grasshopper in the population produces a batch
of eggs that carry a new allele that delays sexual development until July. Her
offspring feed on the new growth of a different plant that grows later in the season
in the same area. Her offspring mate successfully with one another, producing a new
generation of July-mating aphids. This new form is a potential candidate for:
a) sympatric speciation via reinforcement
b) sympatric speciation initiated via temporal isolation
c) allopatric speciation initiated via ecologically-dependent postzygotic isolation
d) allopatric speciation initiated via genetic incompatibilities
e) sympatric speciation initiated via pollinator isolation
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