BIOLOGY
12th Edition
ISBN: 9781264839698
Author: Raven
Publisher: MCG CUSTOM
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Chapter 12.4, Problem 2LO
Summary Introduction
To apply: The rule of probability to genetic crosses.
Introduction: The probability can be used to predict the result of a genetic crossed. There are two rules of probability, such as the rule of addition and rule of multiplication, that can predict the possibility for a mutually exclusive and independent event.
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"B"-yellow "b"-green. When 2 heterozygous parents for both traits are crossed it's
called a dihybrid cross- AaBb × AaBb. Fill in the Punnett Square with the genotypes of this cross.
Predict the probability (using a Punnett square) of producing an offspring affected by a single gene mutation given the genotype of the parents. Compare these crosses in two cases: where the mutant allele is “A” vs where the mutant allele is “a” (AA x aa) (Aa x Aa) (Aa x aa).
Diagram the P1 and F1 crosses, using Mendelian notation, to show the possible genotypes found in each generation. (Remember a diagram is just the cross itself, not the progeny).
Chapter 12 Solutions
BIOLOGY
Ch. 12.1 - Prob. 1LOCh. 12.1 - Explain the advantages of Mendels experimental...Ch. 12.2 - Evaluate the outcome of a monohybrid cross.Ch. 12.2 - Explain Mendels Principle of Segregation.Ch. 12.2 - Compare the segregation of alleles with the...Ch. 12.3 - Evaluate the outcome of a dihybrid cross.Ch. 12.3 - Explain Mendels Principle of Independent...Ch. 12.3 - Compare the segregation of alleles for different...Ch. 12.4 - Prob. 1LOCh. 12.4 - Prob. 2LO
Ch. 12.5 - Interpret data from testcrosses to infer unknown...Ch. 12.6 - Describe how assumptions in Mendels model result...Ch. 12.6 - Prob. 2LOCh. 12.6 - Explain the genetic basis for observed alterations...Ch. 12 - Inquiry question What confounding problems could...Ch. 12 - Prob. 2IQCh. 12 - Prob. 1DACh. 12 - Prob. 2DACh. 12 - Prob. 3DACh. 12 - What property distinguished Mendels investigation...Ch. 12 - The F1 generation of the monohybrid cross purple...Ch. 12 - The F1 plants from the previous question are...Ch. 12 - In a cross of Aa Bb cc X Aa Bb Cc, what is the...Ch. 12 - An organisms __________ is/are determined by its...Ch. 12 - Phenotypes like height in humans, which show a...Ch. 12 - Japanese four oclocks that are red and tall are...Ch. 12 - If the two genes in the previous question showed...Ch. 12 - What is the probability of obtaining an individual...Ch. 12 - Prob. 4ACh. 12 - Prob. 5ACh. 12 - Mendels model assumes that each trait is...Ch. 12 - z1. Create a Punnett square for the following...Ch. 12 - Explain how the events of meiosis can explain both...Ch. 12 - Prob. 3SCh. 12 - In mammals, a variety of genes affect coat color....
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- Two organisms, with genotypes BbDD and BBDd, are mated. Assuming independent assortment of the B/b and D/d genes, write the genotypes of all possible offspring from this cross and use the rules of probability to calculate the chance of each genotype occuring.arrow_forwardDraw a tree diagram of the cross and determine all possible offspring genotypes and at what frequency each will appeararrow_forwardA X cross, is conducted when an organism with the dominant phenotype and unknown genotype is crossed with a Y individual in order to identify the unknown genotype.arrow_forward
- Give only typing answer with explanation and conclusion In a genetic cross for some quantitative trait, 19 distinct phenotypes are observed. Assuming that all genes contribute equally and there are no environmental effects, how many genes contribute to this trait?arrow_forwardGive typing answer with explanation and conclusion Directions: For the following problem, calculate the probability of the offspring between the cross using the sum and product rule. The parent generation has genotypes of Aa Bb Cc and AA Bb CC. What is the probability the F1 generation would be AA bb cc?arrow_forwardThe table below shows the progeny of a test cross of a heterozygote (MmRrDd). Each row shows the number of progeny that inherited each combination of alleles from the heterozygous parent. Which combinations of alleles represent a single crossover? Choose all that apply. Alleles Number mRd Mrd mrd mrD MRD MRd mRD MrD mRD m Rd mrD OMRd Mrd mrd MRD MrD 8 110 38 29 42 31 107 6arrow_forward
- Think of one characteristic (either plant or animal) which is an example of non-Mendelianprinciple. Show the cross and indicate the phenotypes of offspring.arrow_forwardConsider the recombination frequencies data below from a series of two-point crosses that were carried out for genes found at seven loci (a, b, c, d, e, f, and g). Use this data to answer the following questions. The seven genes above are found on how many linkage groups? Loci a and b a and c a and d a and e a and f a and g b and c b and d b and e b and f b and g a. 7 linkage groups b. 5 linkage groups c. 4 linkage groups O d. 3 linkage groups % Recombination 50 50 50 50 50 50 50 50 50 29 11 Loci c and d c and e c and f c and g d and e d and f d and g e and f e and g fand g % Recombination 29 41 50 50 12 50 50 50 50 18 (1)arrow_forwardExplain the Limitations of two-point crossesarrow_forward
- Using the following information perform following crosses using the forked line and predict all possible phenotypes types of the offspring. List the number and description of the phenotypes of the offspring. 1. aa BB Cc Dd Ee X aa bb Cc Dd EE 2. Ff Rr Gg dd Bb X Ff RR Gg Dd Bb 3. Dd gg JJ bb Hh Ee X DD GG Jj Bb Hh Eearrow_forwardIf a red flower is crossed with a white flower to produce an offspring with red and white petals, what is the relationship between the alleles for flower color? show your solution using punett squarearrow_forwardYou’ve isolated neon green cockroaches under the kitchen sink and have been examining them. You wish to determine if this color is transmitted in simple Mendelian fashion. You cross the neon green with your basic brown cockroach and end up with all Brown cockroaches. You allow the F1 to self and observe the following: Neon green: 32 Brown: 68 Based on what you’ve observed you predict a ratio of 3:1. What are your expected values? (Neon green, Brown) Group of answer choices a. 60, 40 b. 63, 21 c. 25, 75 d. 75, 25arrow_forward
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