Let's continue with these two genes that control the color and texture of tomatoes. Allele "R" generates a red coloration, and is dominant. Allele "r" generates a green coloration and is recessive. Allele "S" generates a smooth texture, and is dominant. Allele "s" generates a rough texture and is recessive. You now decide to cross your dihybrid RrSs but this one with a tomato with Rrss. RrSs x Rrss What is the probability of getting Red tomatoes with Rough texture in this new cross? Assume complete dominance and 100% penetrance and expressivity. O O O O 1/8 3/16 9/16 3/8 1/16 1/4 1/2

Let's continue with these two genes that control the color and texture of tomatoes. Allele "R" generates a red coloration, and is dominant. Allele "r" generates a green coloration and is recessive. Allele "S" generates a smooth texture, and is dominant. Allele "s" generates a rough texture and is recessive. You now decide to cross your dihybrid RrSs but this one with a tomato with Rrss. RrSs x Rrss What is the probability of getting Red tomatoes with Rough texture in this new cross? Assume complete dominance and 100% penetrance and expressivity. O O O O 1/8 3/16 9/16 3/8 1/16 1/4 1/2

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants with red and round fruit (FFRR) were crossed to pure breeding plants with yellow and oval fruit (ffrr). The red and round F1 progeny were then testcrossed to plants that were homozygous recessive for both genes (ffrr) with the following results: Phenotypes Number of Offspring Red and round 2 255 Red and oval 290 Yellow and round 310 Yellow and oval 2 145 Part A: Record the phenotypes and the phenotype ratio in lowest terms. Part B: Convert the expected phenotypic ratio from Part A into the expected probability for each of the four phenotypes and record them in the table below. Calculate the probability for each of the four phenotypes observed in the cross from the data presented at the beginning of the question by dividing the number of progeny in each class by the total number of progeny and record these in the table below. (Probability = Number of Progeny in Phenotype…
Can you please not type the answer can you write it on a paper
determine if the possible alleles are complete dominate, incomplete dominance, or codominance.
A farmer is interested in a new colour pattern in his breed of cattle. This trait is controlled by a single autosomal gene (Gene R) with two alleles. The R-allele results in a spotted colour pattern, while the recessive allele causes a solid colour. The farmer has a cow that has the spotted pattern. Can you suggest how the farmer can determine the genotype (RR or Rr) of his cow in a single cross? Describe this cross and provide details on how you would interpret the results.
Tomato Plants In tomato plants, round fruit (R) is dominant to oval fruit (r). Pure breeding plants with red and round fruit (FFRR) were crossed to pure breeding plants with yellow and oval fruit (ffrr). The red and round F1 progeny were then testcrossed to plants that were homozygous recessive for both genes (ffrr) with the following results: Phenotypes Number of Offspring Red and round 2 255 Red and oval 290 Yellow and round 310 Yellow and oval 2 145 Complete a Punnett square to determine the expected testcross progeny on the basis of Mendel’s Law of Independent Assortment. Record the phenotypes and the phenotype ratio in lowest terms.
In the red backed vole (a small mouse-like mammal) there are two traits under investigation. The first trait is a distinct tuft of long hairs at the tip of the tail with a tufted tail being recessive to non-tufted tail. The letter T is used to represent the tail tuft gene. The second trait is a patch of red fur on the head which is known to be recessive to the more common lack of a red patch. The letter R is used to represent this trait. A female to be used in the cross was drawn from a pure breeding line that consistently has both the red patch on the head and a tufted tail. The female is to be crossed with a male from a highly variable wild population. The male used had no red head patch and a normal (untufted) tail. The results were as follows: 7 red head patch with tail tuft, 8 no red head patch with tail tuft, 8 red head patch without tail tuft, 8 no red head patch without tail tuft. What would the results be if the male was crossed with a female that was known to be…
It would be nice if you can give me some explanation please Number 6
Part A) You cross a fly with straight wings with a fly with curved wings to produce the F1 generation, all of which exhibit straight wings. In the F2 generation, you observe 65 straight-winged flies and 16 curved-wing flies. Based upon the results, which phenotype is recessive? Part B) You think this trait is controlled by a single gene, but the F2 numbers don’t quite match a 3:1 expected ratio. Perform a chi-square analysis to determine if the variation you observe is due to chance or not. Based upon this determination, would you keep or reject the “null hypothesis”? Show your work and explain your reasoning.
The Answer is "A" but can you tell me why the answer isn't also "C"
Sire Sire Parent B - First allele Sire B Parent B - Second allele b Now we take each allele from each parent and distribute it into the boxes in the appropriate row or column it borders, until each box has one gene pair - a color gene from parent A and a color gene from parent B. The completed square should look like this: Parent B - First allele B Dam Parent A - first allele Parent A - Second allele B Parent B - Second allele b Dam Parent A - first allele B BB Bb Parent A - Second allele b Bb bb This square now demonstrates the possible genotypes of the offspring if two hybrid parents mated. This table also demonstrates the likelihood of the offspring having that genotype. What are the genotypes and the likelihood (% chance) that each would be passed to offspring of these parents? Genotype % chance in offspring