1.2In rabbits, short hair is controlled by a dominant allele L while long hairis controlled by its recessive allele I. On the other hand, black hair iscontrolled by a dominant allele B while brown hair is controlled by itsrecessive allele b. Based on this information, answer thefollowing questions:1.2.1 Heterozygous rabbits with short, black hair are crossed withhomozygous rabbits with short, brown hair. Determine thephenotypic and genotypic ratios among the F₁ progeny?1.2.2 Determine the expected genotypic and phenotypic ratios amongthe F₁ progeny for the cross between LIBb x Llbb.1.2.3 Determine the expected phenotypic ratio among F₁ progeny forthe cross between LIBb x LlBb.1.2.4 What percentage of the F₁ progeny in the (1.2.3) cross isexpected to be pure breed?1.2.5 What percentage of the F₁ progeny in the (1.2.3) cross isexpected to be heterozygous for a pair of genes?1.2.6 What percentage of the F₁ progeny in the (1.2.3) cross isexpected to be heterozygous for both loci?g adt1.2.7 What percentage of the F₁ progeny in the (1.2.3) cross can beused as test cross parents?1.2.8 What percentage of the F₁ progeny in the (1.2.3) cross isexpected to have short, brown hair?

The process that happens naturally by which genetic features are transferred from parents to their…

2 In rabbits, short hair is controlled by a dominant allele L while long hair is controlled by its recessive allele I. On the other hand, black hair is controlled by a dominant allele B while brown hair is controlled by its recessive allele b. Based on this information, answer the following questions: 1.2.1 Heterozygous rabbits with short, black hair are crossed with homozygous rabbits with short, brown hair. Determine the phenotypic and genotypic ratios among the F₁ progeny? 1.2.2 Determine the expected genotypic and phenotypic ratios among the F₁ progeny for the cross between LIBb x Libb. 1.2.3 Determine the expected phenotypic ratio among F₁ progeny for the cross between LIBb x LIBb.

2 In rabbits, short hair is controlled by a dominant allele L while long hair is controlled by its recessive allele I. On the other hand, black hair is controlled by a dominant allele B while brown hair is controlled by its recessive allele b. Based on this information, answer the following questions: 1.2.1 Heterozygous rabbits with short, black hair are crossed with homozygous rabbits with short, brown hair. Determine the phenotypic and genotypic ratios among the F₁ progeny? 1.2.2 Determine the expected genotypic and phenotypic ratios among the F₁ progeny for the cross between LIBb x Libb. 1.2.3 Determine the expected phenotypic ratio among F₁ progeny for the cross between LIBb x LIBb.

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter13: Patterns In Inherited Traits

Section: Chapter Questions

Problem 6GP: In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele...

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Height in humans is controlled by the additive action of genes and the action of environmental factors. For the purposes of this problem, assume that height is controlled by four genesA, B, C, and Dand that there are no environmental effects. Assume further that additive alleles contribute two units of height and partially additive alleles contribute one unit of height. a. Given these assumptions, can two individuals of moderate height produce offspring that are much taller and shorter than either parent? If so, how can this happen? b. Can someone of minimum height and someone of intermediate height have children taller than the parent of intermediate height? Why or why not?
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In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele for red flowers (p). An allele for long pollen grains (L) is dominant when paired with a recessive allele for round pollen grain (l). Bateson and Punnett crossed a plant having purple flowers/long pollen grains with one having white/flowers/round pollen grains. All F1 offspring had purple flowers and long pollen grains. Among the F2 generation, the researchers observed the following phenotypes: 296 purple flowers/long pollen grains 19 purple flowers/round pollen grains 27 red flowers/long pollen grains 85 red flowers/round pollen grains What is the best explanation for these results?
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A true-breeding rabbit with agouti (mottled, grayish brown) fur crossed with a true-breeding rabbit with chinchilla (silver) fur produces all agouti offspring. A true-breeding chinchilla rabbit crossed with a true-breeding Himalayan rabbit (white fur with pigmented nose, ears, tail, and legs) produces all chinchilla offspring. A true-breeding Himalayan rabbit crossed with a true-breeding albino rabbit produces all Himalayan offspring. Explain the inheritance of the fur colors.
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The text outlines some of the problems Frederick William I encountered in his attempt to breed tall Potsdam Guards. a. Why were the results he obtained so different from those obtained by Mendel with short and tall pea plants? b. Why were most of the children shorter than their tall parents?
One example of a polygenic trait is the length of ears of corn. Suppose that the shortest ears of corn are about 6 cm, while the longest ears of corn are about 18 cm. The following table represents the F2 offspring of a test cross between a short-eared and a long-eared corn plant: Length of 5-7 cm 8-10 cm |11-13 14-16 |17-19 ears of corn cm cm cm Number of 20 F2 offspring 83 |126 85 21 What are the ratios of F2 offspring that express the extreme short or long-eared phenotype? Based on the ratios above, calculate the number of polygenes likely to be involved in ear length for corn.