Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 27.1, Problem 1COMQ
A gene pool is
a. all of the genes in a single individual.
b. all of the genes in the gametes from a single individual.
c. all of the genes in a population of individuals.
d. the random mixing of genes during sexual reproduction.
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Students have asked these similar questions
Which of the following statements is an evolutionary advantage of sex and sexual reproduction?
A. Sex and recombination results in decreased genetic variation in a population and maintains advantageous traits.
B. Sex and recombination can bring beneficial alleles together when producing offspring.
C. Sex and recombination results in the inheritance of all the genetic information available from both parents.
D. Reproduction is less risky when gametes from two individuals must fuse.
One day while walking across campus, you see a female butterfly laying fertilized eggs, as shown in the image:
1. The adult butterfly is:
a. Viviparous
b. Ovoviviparous
c. Oviparous
d. None of these
2. Gender in the butterfly’s offspring will be determined by:
a. Sex chromosomes, in which XX is female XY is male
b. A single sex chromosome, in which XX is female and XO is male
c. Haplodiploidy, in which an unfertilized egg develops into a female through ameiotic parthenogenesis.
d. Hermaproditism
e. c and d
f. None of these
3. In the development of the butterfly, it has:
a. A vermiform larva and a coarctate pupa that develops inside a puparium
b. A eucephalus larva and an exarate pupa that develops inside an ootheca
c. An eruciform larva and an obtect pupa that develops inside a chrysalis
d. A scarabeiform larva and a eucephalus pupa that develops inside a cocoon of silk.
Which of the following consequences of sexual reproduction is considered disadvantageous?
A. More rapid evolution.
B. Generation of novel genotypes.
C. Clearance of deleterious mutations.
D. Reduced relatedness.
Chapter 27 Solutions
Genetics: Analysis and Principles
Ch. 27.1 - A gene pool is a. all of the genes in a single...Ch. 27.1 - 2. In natural populations, most genes...Ch. 27.1 - A gene exists in two alleles designatedDandd. If...Ch. 27.1 - Prob. 4COMQCh. 27.2 - Which of the following is a factor that, by...Ch. 27.3 - 1. Darwinian fitness is a measure...Ch. 27.3 - 2. Within a particular population, darkly colored...Ch. 27.3 - 3. A population occupies heterogeneous...Ch. 27.3 - Prob. 4COMQCh. 27.4 - 1. Genetic drift is
a. a change in allele...
Ch. 27.4 - 2. Which of the following influences on genetic...Ch. 27.5 - Gene flow depends on a. migration. b. the ability...Ch. 27.6 - 1. Inbreeding is sexual reproduction between...Ch. 27.7 - The mutation rate is a. the likelihood that a new...Ch. 27.7 - 2. The transfer of an antibiotic resistance gene...Ch. 27.7 - Prob. 3COMQCh. 27 - 1. What is the gene pool? How is a gene pool...Ch. 27 - Prob. 2CONQCh. 27 - Prob. 3CONQCh. 27 - Prob. 4CONQCh. 27 - The termpolymorphismcan refer to both genes and...Ch. 27 - Prob. 6CONQCh. 27 - For a gene existing in two alleles, what are the...Ch. 27 - 8. In a population, the frequencies of two...Ch. 27 - The ability to roll your tongue is inherited as a...Ch. 27 - What evolutionary factors can cause allele...Ch. 27 - What is the difference between a neutral and an...Ch. 27 - Prob. 12CONQCh. 27 - Prob. 13CONQCh. 27 - Describe the similarities and differences among...Ch. 27 - 15. Is each of the following examples due to...Ch. 27 - Prob. 16CONQCh. 27 - Prob. 17CONQCh. 27 - 18. A group of four birds flies to a new location...Ch. 27 - 19. Describe what happens to allele frequencies as...Ch. 27 - With regard to genetic drift, are the following...Ch. 27 - When two populations frequently intermix due to...Ch. 27 - Two populations of antelope are separated by a...Ch. 27 - Prob. 23CONQCh. 27 - 24. Using the pedigree shown here, answer the...Ch. 27 - A family pedigree is shown here. A. What is the...Ch. 27 - 26. A family pedigree is shown here.
A. What is...Ch. 27 - Prob. 27CONQCh. 27 - Prob. 28CONQCh. 27 - 1. You will need to be familiar with the...Ch. 27 - You will need to refer to question 2 in More...Ch. 27 - Prob. 3EQCh. 27 - Prob. 4EQCh. 27 - You will need to refer to question 2 in More...Ch. 27 - Prob. 6EQCh. 27 - Prob. 7EQCh. 27 - In the Grants study of the medium ground finch, do...Ch. 27 - 9. A recessive lethal allele has achieved a...Ch. 27 - Among a large population of 2 million gray...Ch. 27 - In a donor population, the allele frequencies for...Ch. 27 - Prob. 12EQCh. 27 - Prob. 13EQCh. 27 - Prob. 14EQCh. 27 - 15. What would you expect to be the minimum...Ch. 27 - Discuss examples of positive and negative...Ch. 27 - Discuss the role of mutation in the origin of...Ch. 27 - Prob. 3QSDC
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following scenarios does NOT describe an event that leads to the conceptions of twins? Select one: A. two eggs are fertilized by two sperm cells, resulting in a fraternal twin. B. High levels of FSH stimulate the maturation of three ovums. C. Two eggs are fertilized by one sperm cell, resulting in a monozygotic twin. D. One egg is fertilized by one sperm but divides into two zygotes, resulting in two babies of the same gender.arrow_forwardWhich of the following statements regarding the Y chromosome in mammals is TRUE?A. The Y chromosome is less than half the size of the X chromosome.B.Y chromosomes are most often present in egg cells and are not found in sperm cells. C.Most female mammals have one Y chromosome. D. The Y chromosome contains no protein-coding genes.arrow_forwardHow do each of the following contribute to genetic variation in offspring? a. Crossing over b. Random assortment of homologous chromosomes c. Fertilizationarrow_forward
- Which of the following is a benefit of meiosis? A. The generation of offspring with the exact genetic material of the parents ensures the offspring are well-liked to their environment. B. The independent assortment of alleles increases genetic diversity, which allows the species to evolve. C. The separation of chromatids in meiosis creates offspring with only the most desirable traits, which increases the likelihood of species survival. D. The use of meiosis in reproduction allows for the rapid production of many offspring, which increases the odds of species survival.arrow_forwardIf you continue with biological studies in the future, you are most likely going to carry out fruit fly experiments. Drosophila melanogaster are used in genetics labs due to how inexpensive they are, how visible their traits are, and their high reproductive rate. In Drosophila, the gene for red and white eye colour is found on the X chromosome. The allele for red eyes (XR) is dominant to the allele for white eyes (Xr). You are asked to cross a pure breeding white-eyed female with a pure breeding red-eyed male. What are the genotypes of the individuals involved in this cross? XRXR XRXr XRX- XrXr XRY XrY Genotype of the parent male Answer Genotype of the parent female Answer Genotype of the male offspring Answer Genotype of the female offspring Answerarrow_forwardThe term endopolyploidy refers to the phenomenon of havinga. too many chromosomes.b. extra chromosomes inside the cell nucleus.c. certain cells of the body with extra sets of chromosomes.d. extra sets of chromosomes in gametes.arrow_forward
- Which of the following mechanisms are important for generating new genotypes in species that reproduce sexually? a. Chromosome Inversions b. Crossing Over c. Independent Assortment d. Both a. and b. e. Both b. and c.arrow_forwardBinary fission is a form of asexual reproduction. What is an advantage of asexual reproduction when compared to sexual reproduction? a Asexual organisms are less likely to have mutations in their DNA than sexual organisms are. b An organism that reproduces asexually can reproduce much more quickly than an organism that reproduces sexually. c An asexual organism lives longer than an organism that reproduces sexually. d An organism that reproduces asexually is better equipped to respond to environmental changes than an organism that reproduces sexually.arrow_forwardWhich of the following makes sexually reproduced offspring genetically different from their parents? There might be more than one answer A. Random fertilization between egg and sperm cells B. Crossing over during meiosis C. Independent assortment during gamete formation 31.arrow_forward
- Why is parthenogenesis in bees considered to be a form of asexual reproduction? Select one: a. The male drone is made from a haploid egg. Fertilization is not part of the process to make a male drone. b. The formation of the original haploid cell was achieved using binary fission. c. Although genetic material is transferred from one cell to another using conjugation, the resulting cells will be identical to each other. d. The haploid male bees were made through the process of meiosis, so they are identical to the parent egg cell.arrow_forwardHow does the sexual life cycle increase the genetic variation in a species? a. by providing gametes with different combinations of parental chromosomes. b. by allowing the combination of chromosomes from two different individuals. c. by allowing recombination of the alleles on a chromosome. d. A and B only. e. A, B, and C. Explain your answer.arrow_forwardWhich statement about an individual that is homozygous for an allele is FALSE? Select one: a. Its parents were necessarily homozygous for that allele. b. Each of the gametes it produces will contain one copy of that allele. c. It will pass that allele to its offspring. d. It is true-breeding with respect to that allele. e. Each of its cells possesses two copies of that allele.arrow_forward
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