Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 17.5, Problem 1CC
Summary Introduction
To determine:
If it is possible to study the norm of reaction on a population of wild squirrels.
Introduction:
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Q28
atural Selection - DA # 3
Flgure A shows the color of deer mice (Peromyscus maniculatus) In the Nebraska
Sand Hills (white area) and the rest of the State (grey area). Mice are shown on
the habitat they are not nomally found on. The color of the Sand Hills Is shown
below the light-colored mouse (normal habltat), while the color of the ground in
the rest of the State is shown below the dark-colored mouse. Figure B shows the
phenotyplc difference in the hair shaft of the wild-type and the light-colored
(wideband) mice. Figure C shows the expressilon levels (MRNA) of the Agouti
alleles responsīble for the phenotype seen in figure B. a+= wild-type Agouti alele,
a-= a deletion of the Agouti allele, awb = wideband Agouti allele mutation, and
the black rectangles undermeath each bar is the relative difference in the hair
shaft band phenotype. Wder band means lighter hair color in the deer mice. b.
The Sand Hills were created by volcanic activity 15,000-8,000 years ago. How
were the deer mice…
EXERCISE 6 HARDY-WEINBERG EQUILIBRIUM
Work in a small group or alone to complete this exercise. In human
population X, consider the simple Mendelian trait for freckles. F is the
dominant allele and f'is the recessive allele. Individuals who are
homozygous dominant (FF) or heterozygous (F) for the trait express
freckles. Individuals who are homozygous recessive (ff) for the trait do not
express freckles. In this population, 30% (0.3) of the alleles are recessive (f
) and 70% (0.7) are dominant (F).
1. Use the Hardy-Weinberg equation to determine the genotype
frequencies we should expect in the next generation. Be sure to show
your work.
2. You have collected data on the observed genotype frequencies of the
next generation. They are 60% FF, 30% Ff, and 10% ff. Based on these
observations and your expectations, is this trait currently evolving in
this population? Why or why not?
Chapter 17 Solutions
Biology
Ch. 17.1 - Prob. 1CCCh. 17.1 - Prob. 2CCCh. 17.1 - Prob. 3CCCh. 17.1 - Prob. 4CCCh. 17.1 - Mendels Laws of Inheritance Concept Check: What...Ch. 17.2 - Prob. 1CSCh. 17.2 - Prob. 2CSCh. 17.2 - Prob. 1CCCh. 17.3 - Prob. 1CCCh. 17.3 - Prob. 2CC
Ch. 17.4 - Prob. 1CCCh. 17.4 - Prob. 1EQCh. 17.4 - Prob. 2EQCh. 17.4 - Prob. 3EQCh. 17.5 - Prob. 1CSCh. 17.5 - Prob. 1CCCh. 17.6 - Prob. 1CCCh. 17 - Prob. 1TYCh. 17 - During which phase of nuclear division does the...Ch. 17 - Prob. 3TYCh. 17 - Which of Mendels laws cannot be observed in a...Ch. 17 - During a __________blank, an individual with the...Ch. 17 - Prob. 6TYCh. 17 - Prob. 7TYCh. 17 - A hypothetical flowering plant species produces...Ch. 17 - Genes located on a sex chromosome are said to be...Ch. 17 - Prob. 10TYCh. 17 - Prob. 1CQCh. 17 - A cross is made between individuals having the...Ch. 17 - Core Concept: Systems We can view life as a...Ch. 17 - Discuss the principles of the chromosome theory of...Ch. 17 - When examining a human pedigree, what patterns do...
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- Don't use Ai and chatgpt. Answer in step by step with explanation.arrow_forwardBelow you will find a spreadsheet of the "class" data, use this to complete data table 2. Remember, the class is a total of 24 students, to calculate frequency use the genotype with the highest frequency for each characteristic and divide that number by 24. Don't forget to answer the question on the bottom of page 107! Gender Letters XY XX Sex X, Y 11 13 XX Homozygous Heterozygous Homozygous Recessive Genotype highest frequency Characteristic Dominant Aa Eyebrows Eye Shape Hitchhikers А, а R, r 14 10 11 3 Rr Hh Н, h D, d Е, е F,f G, g В, Ь 15 Earlobes 4 8. 12 dd Ee Tongue Roll Widows Peak 7 10 13 Ff Face Shape 9. 12 3 Gg Eye Color 14 Bb MacBook Air esc 4) FI F2 F4 F5 F6 F8 F9 F10 F1I F12 @ # $ &arrow_forwardPitcher plants can take many forms. You are interested in understanding the genetic control of pitcher formation in pitcher plants. Which of the following is not likely a result you would expect from your QTL study? AV O a. Variation in pitcher size in your F2 population does not exceed that of your parental generation. O b. You were able to reconstitute the phenotypes of the parental generation by selectively breeding F2 individuals. O c. The variation in phenotypes is greater in the F1 population compared to the F2 population. O d. The phenotypes you are interested exhibit a typical Mendelian inheritance.arrow_forward
- Any help? Pls with the boxes in red and this is dealing with Hardy -Weinberg equilibriumarrow_forward???arrow_forwardO Macmillan Learning Assume that the length of wheat leaves is controlled by three loci, each with two alleles: L and I, W and w, H and h. Determine the differences in leaf length between two homozygous strains of wheat. Assume each allele contributes equally to the length of the plant leaves. One homozygous strain, Il ww hh, has leaves that are 100 mm in length, and the other strain, LL WW HH, has 220 mm leaves. The two homozygous strains are crossed, and the resulting F₁ are selfed to produce F₂ progeny. What length will the leaves of the Ll Ww Hh genotype plant be? leaf length: What proportion of the F2 progeny will have the same phenotype as the LI Ww Hh genotype? Input answer as a decimal. proportion: mmarrow_forward
- Give an example of a trait that may have evolved as a result of the handicap principle and explain your reasoning.arrow_forwardAncestry prediction in 23 & Me is continuously updated as new individuals aregenotyped. This can change an individual’s personal predicted ancestry by refining theregion of ancestral origins or potentially identifying a less common ancestry in the lineage.This can similarly happen with animals where new breeds are identified in an individual’sancestry as new breeds are genotyped. Explain how ancestry prediction is done and howthat prediction can change as more individuals are genotyped.arrow_forwardHighlight Draw ソeu र In guinea pigs, short hair is dominant over long hair. If a short haired SS guinea pig is erossed with a long haired ss guinea pig, what are the possible genotypes and phenotypes of their offspring and the percent chance of each? 3. S Fill in the table: Genotype Phenotype Chancearrow_forward
- Do not use Ai and chatgptarrow_forwardQ2. In a drosophila experiment involved the gene for wing size (dominant large, L, and recessive small, 1) and the gene for body color (dominant yellow, G, and recessive black, g). If we had no information about the location of both genes, what would be all the possible scenarios of the cross GgLl x ggll? Keep your answer short and focus on the genotypes and phenotypes frequencies of the progeny in each scenario. instead You arearrow_forwardNeed help.arrow_forward
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