Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 16, Problem 2FIB
Different versions of the same gene are called ______. These versions arise as a result of changes in the sequence of ______ that form the gene. These changes are known as ______. An Individual with two identical copies of a given gene is described as being ______ for that gene, while an individual with two different versions of that gene is described as ______.
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Students have asked these similar questions
Use the following words to complete this statement: phenotype, genotype, heterozygous, homozygous, traits, alleles, genes
Chromosomes contain _______, which help to determine an organisms _____. Genes come in alternate forms called _____, and both parents may not have the same type of allele. The actual gene combination that an organisms receives from its parents is called its_____, while the trait that gets expressed as a result is referred to as its _____. If an offspring receives the same type of allele for a given gene from each parent, it is said to be _____for that trait. If the alleles differ, it is _____.
Which of the following statements accurately describes genetic mutations? *
Mutations are a natural process that increases genetic diversity.
Mutations are an unnatural process that always affect the phenotype.
Mutations are an unnatural process that are always harmful.
Mutations are a natural process that only effects genotype, not phenotype.
Which of the following BEST describes the relationship between genotype, phenotype, traits, and
the environment?
O Organisms acquire traits during their lifetime that alter their phenotype. This allows individuals to better adapt
to their surroundings, and to pass on their phenotypes to their offspring regardless of their genes.
An organism's phenotype is largely determined by its genes, or genotype. The relationship between an
organism's phenotype and its environment determines the frequency of traits in a population.
O The relationship between an organism's environment and its genotype determines the type of phenotype it
will develop. Phenotypes are largely determined by the environment and organisms display traits that are
unrelated to their genes.
Chapter 16 Solutions
Biology
Ch. 16.1 - define evolution in terms of concepts from...Ch. 16.1 - define equilibrium population and describe the...Ch. 16.2 - If it were true that mutations do occur in...Ch. 16.2 - Explain how the distribution of genotypes in...Ch. 16.2 - A flu vaccination stimulates your immune system to...Ch. 16.2 - Prob. 3TCCh. 16.2 - If a population grows large again after a...Ch. 16.2 - Prob. 5TCCh. 16.2 - Evolution of a Menace The mutant alleles that...Ch. 16.2 - describe how mutation, gene flow, genetic drift,...
Ch. 16.3 - A team of phys clans treated four patients with...Ch. 16.3 - If we studied a population of bighorn sheep and...Ch. 16.3 - When selection is directional, is there any limit...Ch. 16.3 - describe why selection of phenotypes can affect...Ch. 16.3 - explain how competition and predation influence...Ch. 16.3 - Prob. 3CYLCh. 16.3 - compare and contrast directional selection,...Ch. 16.3 - Microbiologists have discovered that alleles...Ch. 16 - The alleles responsible for antibiotic resistance...Ch. 16 - Stabilizing selection on a trait tends to a. make...Ch. 16 - An adaptation is a. any trait that arises from a...Ch. 16 - Which of the following statements about mutations...Ch. 16 - Genetic drift occurs a. when different phenotypes...Ch. 16 - The ______ provides a simple mathematical model...Ch. 16 - Different versions of the same gene are called...Ch. 16 - An organisms ______ refers to the specific alleles...Ch. 16 - A random form of evolution is called ________....Ch. 16 - Competition is most Intense between members of...Ch. 16 - The evolutionary fitness of an organism is...Ch. 16 - What is a gene pool? How would you determine the...Ch. 16 - Define equilibrium population. Outline the...Ch. 16 - How does population size affect the likelihood of...Ch. 16 - If you measured the allele frequencies of a gene...Ch. 16 - People like to say that you cant prove a negative....Ch. 16 - Describe the three ways in which natural selection...Ch. 16 - What is sexual selection? How is sexual selection...Ch. 16 - In North America, the average height of adult...Ch. 16 - By the 1940s, the whooping crane population had...
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- Background: In class we did a project about m and m’s and there ability to evolve and natural selection. (Yes I know they can’t actually evolve it was just used as a example in class) however I can’t figure out this question. Occasionally a mutant may occur and produce a candy that is misshapen or Pointier or flatter than the rest. Often this proves to be a weakness, but a rare mutation may confer extra M&M durability. Other mutations in M&Ms could occur ( like ones that result in a new color). A mutant un you population represents a new _________. What goes in the blankarrow_forwardAn individual and a population has certain characteristics.Name these attributes with definitations.arrow_forwardMAKE A simple sketch and label characteristics Choose a human-related organism to study. As you consider strategies to enhance the social value of this organism, think of other desirable attributes that may be added to it. Imagination is a powerful tool, so let it go wild and imagine that you can transfer genes across other animals. For example: A gene from a firefly has been transferred into tobacco plants so that they may glow in the dark, as demonstrated by geneticists. Tobacco pests are less likely to attack at night because of this.arrow_forward
- Matching DNA samples in forensics uses a specific set of small “genes” called________ . The alleles of these genes in different people vary in the__________ of the allele. The pattern of these alleles that a given person possesses is called his or___________ her .arrow_forwardIf our DNA contains all the information about who we are, how can something that does not involve changing the gene sequence cause changes in phenotypes? Describe briefly how these changes happen in an essay with examplesarrow_forwardWhich of the following statements describe how genes, proteins, and traits are related? Select all that apply. Proteins carry out activities in the cell that affect traits. Genes carry out functions in the cell that include providing structure and controlling chemical reactions. Genes contain information about traits. The nucleotide sequence of a gene determines the amino acid sequence of a protein. Proteins are molecules in the cell that encode genes. Submitarrow_forward
- At the edge of the Arctic Circle, owls prey on field mice. Occasionally, in a litter of white field mice, a brown mouse appears. Because of greenhouse warming, the snow melts, changing the environment to shades of brown. The adaptations which allow survival and reproduction of a certain color of mice in the new environment is due to: variation. lethal mutations. acquired traits. isolation.arrow_forwardWhich of the following statements describe how genes, proteins, and traits are related? Select all that apply. The nucleotide sequence of a gene determines the amino acid sequence of a protein. Genes contain information about traits. Genes carry out functions in the cell that include providing structure and controlling chemical reactions. Proteins are molecules in the cell that encode genes. Proteins carry out activities in the cell that affect traits.arrow_forwardIndividuals within the same species have the different DNA "fingerprint," but individuals from different species have same DNA fingerprints. Select one: True Falsearrow_forward
- Genotype is defined by _____, and the phenotype is defined as _____.arrow_forwardGenes code for proteins that determine the phenotypes of individuals. Individualsinherit genes from parents.What is the relationship between genes and chromosomes?A Chromosomes are independent of genes.B Chromosomes are present inside genes.C Genes are made up of chromosomes.D Genes are present on chromosomes.arrow_forwardIn a certain population of mice, a single gene controls fur color. There are two possible alleles: B, which leads to a black fur, and W, which leads to white fur. Individuals with the genotype BB will have a black fur, individuals with the genotype WW will have white fur, and individuals with the genotype BW will have gray fur. Scientists recorded the fur color of 1,000 mice from the population. They found that 200 mice have black fur, 400 have gray fur, and 400 have white fur. Ten years later, the measurements are repeated. Again, they recorded the fur color of 1,000 mice. They found that 400 have black fur, 400 have gray fur, and 200 have white fur. Part A: Show the Hardy-Weinberg calculations for the beginning and ending populations. Include the values for the equation as well as the p andq values. Show your work. Part B: Use the Hardy-Weinberg calculation to explain if this population is evolving or not. Then propose a hypothesis about the environment of these mice that would lead…arrow_forward
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