1. Black fur (B) in guinea pigs is dominant over white fur (b). A homozygous black and a heterozygous black guinea pig are crossed. a) Complete the Punnett Square (it is a google drawing so you will have to double click it to go to the drawing and type in and around the square). b) What are the possible phenotypes of the offspring of this cross, and what is the chance (probability) of getting each phenotype? c) Is it possible for the recessive allele (b) to show up in future generations? Justify (explain) your answer.

1. Black fur (B) in guinea pigs is dominant over white fur (b). A homozygous black and a heterozygous black guinea pig are crossed. a) Complete the Punnett Square (it is a google drawing so you will have to double click it to go to the drawing and type in and around the square). b) What are the possible phenotypes of the offspring of this cross, and what is the chance (probability) of getting each phenotype? c) Is it possible for the recessive allele (b) to show up in future generations? Justify (explain) your answer.

Name: 1. Black fur (B) in guinea pigs is dominant over white fur (b). A hom
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Description: 1. Black fur (B) in guinea pigs is dominant over white fur (b). A homozygous black and a heterozygous blackguinea pig are crossed.a) Complete the Punnett Square (it is a google drawing so you will have to double click it to go tothe drawing and type

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 4VCQ: Figure 12.16 In pea plants, purple flowers (P) are dominant to white flowers (p) and yellow peas (Y)...

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If two gene pairs A and a and B and b are assorting independently with A dominant to a and B dominant to b, what is the probability of obtaining: a. an AB gamete from an AaBb individual? b. an AABB zygote from an AaBb x AaBb cross? c. an aaBb offspring from an AaBB x aabb cross? d. a phenotype aB from an Aabb x aaBb cross? e. an ab gamete from an aaBB individual?
1.What are the possible genotypes of the parent gametes of the corn dihybrid cross described above? 2.What is the genotype of the F1 generation of the corn dihybrid cross described above? 3.What is the phenotype of the F1 generation of the corn dihybrid cross described above? 4.What are the possible maternal and paternal genotypes of the F1 gametes of the corn dihybrid cross described above?
In dogs, dark coat color is dominant over albino, andshort hair is dominant over long hair. Assume that theseeffects are caused by two independently assorting genes.Seven crosses were done as shown below, in which D andA stand for the dark and albino phenotypes, respectively,and S and L stand for the short-hair and long-hairphenotypes.Number of progenyParental phenotypes D, S D, L A, S A, La. D, S × D, S 88 31 29 12b. D, S × D, L 19 18 0 0c. D, S × A, S 21 0 20 0d. A, S × A, S 0 0 29 9e. D, L × D, L 0 31 0 11f. D, S × D, S 45 16 0 0g. D, S × D, L 31 30 10 10Write the genotypes of the parents in each cross. Use thesymbols C and c for the dark and albino coat-color allelesand the symbols H and h for the short-hair and long-hairalleles, respectively. Assume parents are homozygousunless there is evidence otherwise.
1.What are the phenotypes of the parents of the corn dihybrid cross described above? 2. What are the possible genotypes of the parent gametes of the corn dihybrid cross described above? 3.What is the phenotype of the F1 generation of the corn dihybrid cross described above?
1. While hiking your find a wild growing pea plant with purple flowers. You know that purple pea flowers are dominant to white pea flowers, but from looking at the plant, you cannot be certain if it is homozygous dominant or heterozygous. Explain the cross you could set up to determine the genotype of the wild pea plant and which results would indicate it is heterozygous versus homozygous. 2. Using skin color as an example of a multifactorial trait, explain why skin color produces a wide range of possible phenotypes within the human population.
In pea plants, purple flowers (P) are dominant to white flowers (p) and yellow peas (Y) are dominant to green peas (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares do you need to do a Punnett square analysis of this cross?
A heterozygous individual is crossed with a homozygous recessive individual. a. Draw a Punnett square to represent this cross. b. What is the probability that an offspring will have a homozygous genotype? c. What is the probability that an offspring will have a dominant phenotype? d. What is the probability that three offspring will be produced that all carry the recessive allele but do not express the recessive phenotype?
You perform a cross between two true-breeding strains of zucchini, One has green fruit and the other has yellow fruit. The F1 plants are all green, but when these are crossed, the F2 plants consist of 9 green: 7 yellow. A. Assuming that wild-type zucchini are green, how would you describe the phenomenon that occurred in the F1 of part (e) of the parents and progeny?.
. What is the probability of producing a child that willphenotypically resemble either one of the two parentsin the following four crosses? How many phenotypically different kinds of progeny could potentiallyresult from each of the four crosses?a. Aa Bb Cc Dd × aa bb cc ddb. aa bb cc dd × AA BB CC DDc. Aa Bb Cc Dd × Aa Bb Cc Ddd. aa bb cc dd × aa bb cc dd
The following cross is set: DDEeFFggHh X DdEEFfGGhh a. What is the maximum number of additive alleles possible in their offspring? b. What is the maximum number of non-additive alleles possible in their offspring?
Given a cross between AabbCcDdEeFFGgHh x AaBbCcDdEEffggHH, a) how many possible gametes can the first individual produce? b) what proportion of the offspring will phenotypically resemble the first parent? c) what proportion of the offspring will genotypically resemble the second parent? d) how many phenotypes can be expected from the cross?
Given a cross between these two parents: BbCcDDEEFfGgHhjj x BbCcddEeFfGgHHjj where traits B, E, H, J exhibit Mendelian inheritance; C, and F exhibit incomplete dominance; D, and G exhibit co-dominance answer the following: How many phenotypes can be expected from the cross?