
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question

Transcribed Image Text:Q6.9. A dwindling population of 1000 frogs occupies an isolated area in Costa Rica. To help
preserve the species, scientists caught 20 frogs to start a new population in a nearby area. This
species has a gene that affects eye shape. The 1000-member wild population has two alleles for
this gene: R and r, with frequencies 0.7 and 0.3, respectively. What will be the allele frequencies
of R and r in the 20-member founder population?
The frequencies will be 0.7 for R and 0.3 for r.
The frequencies will be 1.0 for R and 0 for r.
The expected frequencies are 0.7 for R and 0.3 for r. The actual frequencies could be different.
The founder populations's allele frequencies will necessarily be different than the source
population's frequencies.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps

Knowledge Booster
Learn more about
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
- Problem 4) About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene. Assuming random mating in the population with respect to colour blindness; a) What percentage of women would be expected to be colour blind? b) What percentage of women would be expected to be heterozygous? c) What percentage of men would be colour blind in the next generation?arrow_forwardPlease helparrow_forward> Within a certain population, there are exactly 2 alleles at the T locus: T and t. Among the entire population, 30% of the alleles are T. If this population is in Hardy Weinberg equilibrium, what proportions (or percentages, however, you want to express it) will be TT, Tt, and tt? Show work. In a population, there are 75 TT individuals, 25 Tt individuals, and 250 tt individuals. What are the frequencies of T and t? Show work. What are the "expected" numbers of each genotype? Show work. Ís this population in Hardy Weinberg equilibrium? (don't do Chi², just compare your answer in a) b) c) part b io actual and it should be obvious.) ) Assume that, in a population of deer, two alleles exist for eye color. BB deer have blue eyes, Bb deer have purple eyes, and bb deer have red eyes. Out of a population of 1000 deer, 490 have blue eyes. You took notes on the amount of red and purple eyed deer, but your notebook fell in the mud and those numbers are obscured. However, if the population is in…arrow_forward
- genetics question on fixationarrow_forward12:29 ė Variation in Alleles Allele frequency - Allele frequency, or gene frequency, is the relative frequency of an allele a particular locus in a population 1. What is the allele frequency for the dominant allele? 2. What is the percentage of dominant alleles? 3. What is the allele frequency for the recessive allele? 4. What is the percentage of recessive alleles? 264 If you have 12 alleles, and 7 of them are dominant and 5 of them are recessive, calculate the following allele frequencies. ×arrow_forward30arrow_forward
- 24. In a toad population, green toads produce 4 offspring over their lifetime, brown toads produce 2.5 offspring, and gray toads produce 6 offspring. What are the relative fitnesses of these phenotypes (in the order green, brown, gray)? Group of answer choices 1, 0.42, 0.67 0.33, 1, 0.67 0.67, 0.42, 1 0.67, 0.33, 1 1, 0.33, 0.67arrow_forwardQ7. Ten years later, the researchers return to Niijima Island and they notice that there are members of the same land snail species, but they have a pink shell. What are the two most likely explanations for this shell color new to Niiima? Choose the 2 best answers a. A random mutation in a snail that resulted in a pink shell. b. The bottleneck effect occurred among the snail population on Nijima c. Genetic Drift d. Disruptive selection over many generations e. Some snail eggs from a neighboring island that has pink snails were transported to Nijima on the feet of migratory ducks.arrow_forwardAn island population of frogs carries a rare allele at a frequency of 0.1. This same allele is present on the mainland at a frequency of 0.4. If the migration rate from the mainland to the island occurs at a rate of m = 0.2, what is the expected frequency of this rare allele on the island after the influx of immigrants?A) 0.0 < q < 0.2B) 0.2 < q < 0.4C) 0.4 < q < 0.6D) 0.6 < q < 0.8E) 0.8 < q < 1.0arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education

Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON

Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax

Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,

Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company

Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.

Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education