Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
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Chapter 23, Problem 2TYU
Summary Introduction
Introduction: The variation in DNA sequence of genome of members of a species is known as
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Heritable variation is required for which of the following?
A) Evolution
B) Asexual reproduction
C) Mitosis
D) Meiosis
The term heterozygous means;
a) An organism has two different sex chromosomes
Ob) An organism was originally twins that fused together in the zygote stage
c) An organism has two identical alleles for a given gene
d) An organism has two different alleles for a given gene
In a diploid species, each individual possesses (a) one allele for each locus (b) two alleles for each locus (c) three or more alleles for each locus (d) all the alleles found in the gene pool (e) half of the alleles found in the gene pool
Chapter 23 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
Ch. 23.1 - Explain why genetic Variation within a population...Ch. 23.1 - Ot all the mutations that occur in a population,...Ch. 23.1 - MAKE CONNECTIONS If a population stopped...Ch. 23.2 - A population has 700 individuals, 85 of genotype...Ch. 23.2 - The frequency of allele a is 0.45 for a population...Ch. 23.2 - WHAT IF? A locus that affects susceptibility to a...Ch. 23.3 - In what sense is natural selection more...Ch. 23.3 - Distinguish genetic draft from gene flow in terms...Ch. 23.3 - WH AT IF? Suppose two plant populations exchange...Ch. 23.4 - What is the relative fitness of a sterile mule?...
Ch. 23.4 - Explain why natural selection is the only...Ch. 23.4 - Prob. 3CCCh. 23 - Typically. most of the nucleotide variabillity...Ch. 23 - Is it circular reasoning to calculate p ond q from...Ch. 23 - Would two small, geographically isolated...Ch. 23 - How might secondary sex characteristics in males...Ch. 23 - Natural selection changes allele frequencies...Ch. 23 - Prob. 2TYUCh. 23 - Prob. 3TYUCh. 23 - There are 25 individuals in population 1, all with...Ch. 23 - Prob. 5TYUCh. 23 - EVOLUTION CONNECTION Using at least two examples,...Ch. 23 - SCIENTIFIC INQUIRY INTERPRET THE DATA Researchers...Ch. 23 - Prob. 8TYUCh. 23 - SYNTHESI2E YOUR KNOWLEDGE This kettle lake forracd...
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- |(A) Briefly explain the Darwinian theory of natural selection. (B) Darwin also developed the idea of sexual selection. Explain sexual selection. (C) How might sexual selection lead to exaggerated morphology or behavior? (D) and how might natural selection affect the evolution of these exaggerated traits?arrow_forwardDNA recombination occurs during the process of __________ and affects the population by ________ A) Meiosis, decreasing genetic variation B) Meiosis, increasing genetic variation C) Mitosis, decreasing genetic variation D) Mitosis, increasing genetic variation E) Both B and D are correct F) Both A and C are correctarrow_forwardWhat are some reasons that studies of human inheritance are difficult? (Select all that apply) a) humans have more complicated genes b) humans have a long lifespan c) humans have relatively few offspring d) there are more ethical issues to testing human subjectsarrow_forward
- (1) A very large population of birds is living on an island in the Pacific ocean. (2) There are no birds from the same species coming into the island or leaving the island. (3) Each member of the population survives and reproduces at the same rate. (4) When birds are choosing their mates, they choose based on how colorful their feathers are. (5) There are no new mutations arising in the population. Is it likely that this population is in Hardy-Weinberg equilibrium? If not, select the sentence that led you to conclude this. If yes, indicate that below. O Yes, this population is in H-W equilibrium. O Sentence 3 O Sentence 4 Sentence 2 O Sentence 1 O Sentence 5arrow_forward1)Ganarles contain one kind of each chromosome because the homologous chromosomes separate during meiosis. True or False? 2)In humans, there are two alleles possible at the chromosome locus that determine blood type. True or False? 3) Mendel was a famous naturalist who developed the concept that lead to the laws of evolution. True or False? 4) Embryonic stem cells come from embryos made for research. True or False? 5) An organisms environment history, in addition to the phenotype, can influence the genotype. True or false? 6) During métodos homólogos chromosome sorteaste and the daughter cells have one copy of each kind of chromosome. True or False? 7) the surtidor include all the pair of chromosome except the X and Y Chromosome. True or False? 8) during DNA replication, the patent DNA molecule unerring and unzips. Then reach old stand serves as a template for a new stand. True or False? 9) mutations due to replication errors and environmental factors are quite common due to the proof…arrow_forwardhuman height is a example of _ a) codominence B) jumping genes C) polygenic inheritance D) dominant genes ????arrow_forward
- Mutation (a) can produce new alleles. (b) can be harmful, beneficial, or neutral. (c) is a change in an organism’s DNA sequence. (d) all of the abovearrow_forwardWhen two organisms are very distantly related in an evolutionary sense, (a) they should have extremely similar embryonic development. (b) they must share a very recent common ancestor. (c) the sequences of DNA in their genes should be less similar (more different) than those of two more closely related organisms. (d) they should share more homologous traits than two more closely related organisms share.arrow_forwardWhich of the following is a disadvantage of sexual reproduction? a.)Offspring can be reproduced more quickly than by sexual means b.)Two parents are required for making sex cells c.)Offspring are genetically different d.)Genetic diversity makes organism respond uniformly to environment changesarrow_forward
- Which of the following decreases genetic variation in a population? a)natural selection b)mutation c)gene flow d)meiosis e) A and C only (Option E is said to be incorrect)arrow_forwardTrue or False a.) Evolution creates genetic variation in a population. b.) Fitness refers to an allele's ability to help the organism evade predators. c.) The process of natural selection may increase or decrease the frequency of a particular allele in the population depending on the environment. d.) A potato species acquires a mutation in its catalasegene that allows it to function in very cold environments. However, this catalaseis denatured at room temperature. This is a good example of fitness cost.arrow_forwardA species with zero senescence would: A.) O Not show any decline in fitness with age. B.) Mature at an early age. C.) Live forever. D.) Not have any deleterious alleles.arrow_forward
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