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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Please help me, this is from practice, double check your answers, previous tutors got it wrong
ABO blood group is co-dominant for AB and O is recessive. Rh (+/-) factor is completely dominant. A man with O/positive blood and a woman with A/negative blood have six children. All of their children have A + blood type. What can you conclude about the parents’ genotypes? Group of answer choices Both mother and father are likely homozygous at both loci Mother was homozygous at the ABO locus but heterozygous at the Rh factor locus Father was homozygous at the ABO locus but heterozygous at the Rh factor locus Mother was heterozygous at both loci
Another trait you are studying in monster genetics is fur texture. A mommy monster (P1) who is homozygous for spiky fur and a daddy monster (P1) who is homozygous for feathery fur have a litter of monsters (F1). All of the F1 monsters have feathery fur. Using the letter, F, for your alleles, determine the following: 1. What is the genotype of the mommy monster? 2. What is the genotype of the daddy monster? 3. What are the genotypes of all of the F1 generation? 4. If two of the F1 offspring are crossed, what is the phenotypic ratio of the result? (A ratio is written as: X:X) 5. What are the genotypes (and how many of each) that result from the cross described in question 4 above?
. In corn, three dominant alleles, called A, C, and R,must be present to produce colored seeds. GenotypeA/− ; C/− ; R/− is colored; all others are colorless.A colored plant is crossed with three tester plants ofknown genotype. With tester a/a ; c/c ; R/R, the coloredplant produces 50 percent colored seeds; with a/a ;C/C ; r/r, it produces 25 percent colored; and withA/A ; c/c ; r/r, it produces 50 percent colored. What isthe genotype of the colored plant?
BIU A- == 三E 12 - Match each of the following examples to the appropriate type of non-Mendelian inheritance. 1. A homozygous recessive genotype for the gene that encodes phenylalanine hydroxylase (which breaks down the amino acid phenylalanine) causes lighter skin color, a musty odor, differences in intellectual development, and seizures. 2. In pea plants, alleles of Gene W control flower color, with the dominant allele (W) leading to purple flower.color, and the recessive allele (w) leading to white flower color. Usually, a genotype of WW or Ww leads to purple flowers. However, when Gene C is homozygous recessive, WW or Ww plants always have white flowers. 3. In mallard ducks, feather coloring is controlled by Gene F. A dominant allele (F) leads to green head feathers, while a recessive allele (f) leads to brown head feathers. In male mallards, inheritance of one or more F alleles always leads to the green head feather trait. But female mallards always have brown head feathers,…
determine if the possible alleles are complete dominate, incomplete dominance, or codominance.
Certainly, not all Muppets look like the one shown in the picture below, nor do they all look the same. In fact, there’s a great deal of phenotypic variation in Muppets. Two traits that have been particularly well-studied are curly hair presences and skin color. One individual is a male, and he possesses a green skin and no hair, whereas the female individual possess a curly hair and pink skin. Let’s call the gene controlling skin coloration S and that controlling hair H. In this species, both hair and green skin are recessive traits. Both of the individuals shown are homozygous. 1. What is the genotypes of Miss Piggy: 2. Kermit's Genotype: 3. If these two lovebirds (er, love-muppets?) mated, what would their offspring look like? Describe all phenotype combinations possible and the ratios in which they would occur?
Choose one pls
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
1.1 Farmer Brown has a breed of white-feathered chickens that is homozygous for the dominant allele A which produces coloured feathers. These chickens are also homozygous for the dominant allele B for another independently assorting gene which inhibits colouration of the feathers. Farmer MacDonald has a different breed of white chickens that are homozygous recessive for both the A/a and B/b genes. One of farmer Brown’s hens (AABB) is crossed with one of farmer MacDonald’s roosters (aabb) to generate the F1 generation. What are the expected F2 phenotypes and proportions from the crossing the F1 offspring? 1.2 A certain animal can have brown, red, black or gray fur. Assume that fur colour is controlled by a single gene with multiple alleles in a dominance series where black (B1) > brown (B2) > red (B3) > gray (B4). Give the genotypes of two phenotypically different heterozygotes that when crossed produce offspring with the phenotypic ratio of 1 black : 1 brown.
The Answer is "A" but can you tell me why the answer isn't also "C"