Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 16.2, Problem 2TC
Explain how the distribution of genotypes in generation 2 is calculated.
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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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- Explain why the percentage of recombinant offspring in a testcrossis a more accurate measure of map distance when two genes areclose together. When two genes are far apart, is the percentage ofrecombinant offspring an underestimate or overestimate of theactual map distance?arrow_forwardPropose an explanation for the small amount of enzyme E produced by genotype 3.arrow_forwardIn the F1 generation of a rabbit population, the following results were obtained:3/8 black, long hair3/8 black, short hair1/8 brown, long hair1/8 brown short hairwhat were the parents genotypes?arrow_forward
- A researcher mutagenized a group of butterflies and isolated six butterflies with extra-long bodies. Each butterfly has a recessive mutation in only one gene. The researcher performed a complementation test using the six butterflies and got the following results, where "+" is wild-type body and "-" is extra-long body. 2 1 3 4 5 1 - - 3 + 4 + ? ? - + - - + + + + | +arrow_forwardExplain why a 50 percent recovery of single-crossover products is the upper limit, even when crossing over always occurs between two linked genes?arrow_forwardrdentify the statement that best interprets the results of the chi-square analysis. Refer to the chi-square distribution table to identify the statement that best interprets the chi-square results. a) It is not unusual that a heterozygous man produced 16 out of 25 offspring with heterochromia b) A total number of normal offspring is significantly lower than expected c) It is unusual that a man with heterochromia had 16 out of 25 offspring with heterochromia d) There is a significant difference between the observed number of offspring with heterochromia and the number of offspring that were expected to have heterochromia 8. Suppose two parents, a father with the genotype AaBbCcDdee and a mother with the genotype aaBbCCDdEe, want to have children. Assume each locus follows Mendelian inheritance patterns for dominance. What proportion of offspring will have each of the specified characteristics? Round your answers to two decimal places. a. Same genotype as father%3D b. Same genotype as…arrow_forward
- WHY IS A 50% RECOVERY OF SINGLE-CROSSOVER PRODUCTS THE UPPER LIMIT, EVEN WHEN CROSSINGOVER ALWAYS OCCURS BETWEEN TWO LINKED GENES?arrow_forwardShow an example of Robertsonian Translocation using lettersarrow_forwardWhat is the relative fitness of the F1 hybrids relative to both parental populations according to this model?arrow_forward
- Consider the pedigree below. Which of the individuals MUST be heterozygous carriers of the diseasse? I II III IV OQ 3 11-2 III-1 III-2 UI-3 III-4 III-5 IV-1 IV-2 IV-3 IV-4 IV-5arrow_forwardIf the likelihood of a single crossover in a particular chromosomalregion is 10%, what is the theoretical likelihood of a double or triplecrossover in that same region? How would positive interferenceaffect these theoretical values?arrow_forwardIn Drosophila (fruit flies), jammed wings (J), daughterless (da), curly wings (Cy), star eyes (S), and a black body (b) are determined by genes located on the same chromosome. Gene Combination Recombination Frequency J and Cy 34.9 J and da 1.7 S and Cy 4.8 Cy and b 42.4 S and da 38 b and S 47.2 What is the map unit distance between b and da?Answer map unitsRecord your answer as a value rounded to one decimal place.arrow_forward
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