can you do question 8 The next two questions go together.Suppose the tail length of two populations of lizards is controlled by one gene. To determine themode of inheritance, a true-breeding short-tailed female is crossed with a true-breeding long-tailedmale. Then, siblings from the F1 are crossed and the number of short- and long-tailed animals arecounted to determine the phenotype ratio.1. What phenotypic ratio do you expect in the F2 generation if tail length is controlled by anautosomal gene, and long tails are dominant to short tails?1 long: 1 shortmales 1 long: 1 short, females all short3 long: 1 shortO 1 long: 3 shortQuestion 82. What phenotypic ratio do you expect in the F2 generation if tail length is controlled by a sex-linked gene, and long tails are dominant to short tails? Assume a chromosomal sex determinationsystem as in mammals, with XX females and XY males.1 long: 3 shortmales 1 long: 1 short, females all short1 long: 1 short3 long: 1 short

The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Question 8 2. What phenotypic ratio do you expect in the F2 generation if tail length is controlled by a sex- linked gene, and long tails are dominant to short tails? Assume a chromosomal sex determination system as in mammals, with XX females and XY males. O 1long: 3 short males 1 long: 1 short, females all short O 1 long: 1 short 3 long: 1 short

Question 8 2. What phenotypic ratio do you expect in the F2 generation if tail length is controlled by a sex- linked gene, and long tails are dominant to short tails? Assume a chromosomal sex determination system as in mammals, with XX females and XY males. O 1long: 3 short males 1 long: 1 short, females all short O 1 long: 1 short 3 long: 1 short

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter3: Transmission Of Genes From Generation To Generation

Section: Chapter Questions

Problem 18QP: More Crosses with Pea Plants: The Principle of Independent Assortment Determine the possible...

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O e. Parent 2: Parent 1: Parent 2: ¡Ai QUESTION 9 Bi QUESTION 8 Let's assume that, in dragons, red scales (B) are dominant to green scales (b), and long tongues (S) are dominant to short tongues (s). The genes that determine these characteristics assort independently. A homozygous red, long-tongued dragon is crossed with a homozygous green, short-tongued dragon. If an F1 dragon is crossed to a homozygous green and homozygous short-tongued dragon, what phenotypes and proportions are expected in the offspring? O a. 100% green and long-tongued O b. ½ green and short-tongued & ½ red and long-tongued O c. ½ red and short-tongued & ½ green and long-tongued O d.% red and long-tongued, % red and short-tongued, ½ green and long-tongued, % green and short-tongued O e. 9/16 red, long-tongued, 3/16 green, long-tongued, 3/16 red, short-tongued, 1/16 green, short-tongued Save and Submit to save and submit. Click Save All Answers to save all answers. 000 MacBook Air
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Inheritance of multiple genes: 8. A pure-bred grey cat mates with a pure-bred chocolate cat: a. What are the possible phenotypes of their kittens? b. For each of these phenotypes, what is their probability? black [Choose ] [Choose ] 0.75 gray 0.5 0 1.0 0.25 chocolate [Choose ] lilac [Choose ] cinnamon [Choose ] fawn [Choose ] orange [Choose ] cream [Choose ]
Paragraph Styles DIHYBRID GENETICS PROBLEMS Name In garden peas, tall (T) vine is dominant over short (t) vine, and round pea pod (R) is dominant over wrinkled pea pod (r). Cross a homozygous tall, round pea plant with a homozygous short, wrinkled pea plant. Show the genotypes and phenotypes of the F1 offspring, and the probability of each. 1. Genotype of the homozygous tall, round pea plant Genotype of the homozygous short, wrinkled pea plant. Genotypes Phenotypes acer
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For number 15-24. In man, assume that spotted skin (S) is dominant over non-spotted skin (s) and that wooly hair (W) is dominant over non-wooly hair (w). Cross a heterozygous parent (SsWw) with a heterozygous parent (Ssww) Give genotypic and phenotypic ratios of offspring. 15-18. What is the probability of producing spotted skin with non-wooly hair? 8/16 4/16 3/16 6/16 8/16 A. B. C. D. E. 19-21. What is the probability of producing non-spotted skin with non-wooly hair? A 2/16 B. 4/16 C. 1/16 D. 6/16 22-24. What is the probability of producing non-spotted skin with wooly hair? A 3/16 В. 4/16 с. 1/16 D. 9/16 E. 8/16
for abor Monohybrid crossing the monohybrid and dihybrid crosses. 1. A baby with type Ab blood is born into a family where the mother has type B blood and father type O blood. (i) Determine whether the husband is the biological father of the baby. Explain your answer in (i) above. (ii) 2. Silky feathers in fowls are caused by an allele which is recessive to the allele for normal feathers. 200 birds were raised from a cross between two heterozygous individuals. Predict the number of the birds that would expected to be silky and those expected to be normal. If about half of the offspring turned out to be silky, comment on the nature of the normal. If you had normal feather birds, propose the easiest way to determine whether its homozygous or heterozygous. 3. In dogs, black fur is dominant to white fur. Determine the possible offspring from crosses between: Homozygous black and white. (1) Heterozygous black and heterozygous black. (iii) Detach this page from your manual and att ch it to…
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Mendelian Genetics (Monohybrid Cross) A. In dogs, a dominant gene (W) produces wire-haired texture. The recessive allele (w) produces smooth hair. A homozygous wire-haired male is mated to a homozygous female with smooth hair. What genotypes and phenotypes are expected i n their offsprings. Show the results of the crosses, the genotypic and phenotypic ratios. B. Normal pigmentation in humans result to a dominant allele (A), in which albinism results from the recessive allele (a). Two heterozygous individuals plan to have a child. What are the phenotypes of the parents? What is the chance that the child will be albino?