What is the source of new alleles within a population?mutationsexual reproductionindependent assortmentnatural selection

An allele is one of at least two renditions of a quality. An individual acquires two alleles for…

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What is the source of new alleles within a population? O mutation sexual reproduction independent assortment natural selection

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter1: Invitation To Biology

Section: Chapter Questions

Problem 8SQ: DNA _______. a. guides form b. is the basis of traits c. is transmitted from and function parents to...

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Concept explainers

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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What is the source of new alleles within a population?
mutation
sexual reproduction
independent assortment
natural selection

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Over the last several decades, the scientific community has gathered a large amount of information regarding genetics and genetic variation. What is a main source that leads to increased genetic variation? Top of Form Selective breeding Chromosomal mutations Recombination Genetic drift
Generally speaking, there are four types of mutations. Which of two of these four have the main effects on fitness? O beneficial O deleterious O lethal O neutral
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Which of the following events that may occur during meiosis and fertilization will increase the genetic diversity of a population? Independent assortment of chromosomes Crossing-over All of the listed choices increase genetic diversity Genetic recombination
For a mutation that does not have a fitness cost to the individuals who carry it, we call the mutation a -synonymous mutation -beneficial mutation -dominant mutation -homologous mutation -neutral mutation
Which one of the following options most accurately describes the process that generates the signature of a selective sweep in DNA sequence data? suppression of mutation over a long haplotype centered on a positively selected allele genetic hitchhiking of neutral alleles flanking the favored allele at the nucleotide site under positive selection O higher than average recombination around the core allele under positive selection
The reason spontaneous mutations do not have an immediate effect on allele frequencies in a large population is that: a. mutations are random events, and mutations may be eitherbeneficial or harmful. b. mutations usually occur in males and have little effect oneggs. c. many mutations exert their effects after an organism hasstopped reproducing. d. mutations are so rare that mutated alleles are greatlyoutnumbered by nonmutated alleles. e. most mutations do not change the amino acid sequence of aprotein.
The original source of all genetic variation is what?