The genotypes of a specific cross or breeding experiment are predicted using the Punnett square, a square diagram. The answer is "bb x bb" because in all the other scenarios, the black gene would be dominant over the blue gene in at least one offspring. What percentage of offspring produced by two parents with blue eyes would also have blue eyes? Make a Punnett square. The parents' rabbits have the following genotypes: |W||w|. Question: Two heterozygous white (brown fur is recessive) rabbits are crossed. Two heterozygous white (brown fur is recessive) rabbits are crossed. List the parent genotypes, draw - Brainly.com. In a population of rats at a pet store, the allele for black fur is dominant (B) and the allele for brown fur is recessive (b). What is a punnett square?
- Two heterozygous white (brown fur is recessive) rabbits are crossed?
- Two heterozygous white brown fur is recessive rabbits are crosse technology
- Two heterozygous white brown fur is recessive rabbits are crossed
Two Heterozygous White (Brown Fur Is Recessive) Rabbits Are Crossed?
C. List probabilities of all possible genotypes. Find how many gene pools there are and discover their various examples. The parents genotypes from this cross are ______. The phrase "homozygous dominant" means the genotype of one parent is BB while "heterozygous" is a genotype of Bb.
Color Expression: Animals have different colors. The allele for black feet in a species of duck is dominant to the allele for brown feet. What are the phenotypes of the cross between two homozygous parents, one with a long neck and one with a short neck? One poodle is homozygous for black fur, and the other is heterozygous. The allele for longer necks in giraffes is dominant to the allele for shorter necks. Brown fur is dominant to white fur in a species of rabbit and is represented with the alleles "B" and "b". Two heterozygous white brown fur is recessive rabbits are crosse technology. Learn the definition of a gene pool and understand how it changes. 50% BB, 25% Bb, 25% bb. Become a member and unlock all Study Answers. Answer and Explanation: 1. In poodles, the allele for black fur (B) is dominant to the gene for brown fur (b). For which of the following parental genotypes would 100% of offspring be expected to be blue? Polycystic Kidney Disease (PKD) is a disease that can cause kidney failure. All offspring are expected to have black fur because all offspring will have at least one dominant allele for black fur which will overpower any allele for brown fur.
Two Heterozygous White Brown Fur Is Recessive Rabbits Are Crosse Technology
The answer is "75% black feet and 25% brown feet" because phenotypes are the physical expression of an allele pair and the dominant allele for black feet will overpower the allele for brown feet. The sum of a person's attributes or observable characteristics is their phenotype. 25% BB, 25% bb, and 50% Bb. Assume B is white, b is recessive brown; Bb x Bb. Therefore, a color determined by a recessive allele cannot be expressed when a dominant allele is present. What percentage of the offspring are expected to have black fur? Learn more about this topic: fromChapter 17 / Lesson 24. Two heterozygous white brown fur is recessive rabbits are crossed. A person's genotype is made up of all the alleles they have for a certain gene.
75% black feet and 25% brown feet. 50% long necks and 50% short necks. What is the chance that a child will have PKD if the father is unaffected and the mother is heterozygous for PKD? The answer is "Both are black. " Our experts can answer your tough homework and study a question Ask a question. A rat with the genotype BB is crossed with a rat with the genotype Bb. What are the phenotypes of the offspring from the cross shown in the punnet square above? The answer is 100% long necks. Two heterozygous white (brown fur is recessive) rabbits are crossed?. Dominant alleles are represented by capital letters and recessive alleles are represented by lowercase letters. Two poodles are crossed. The allele for blue eyes is "t" while the allele for brown eyes is "T". Phenotypes: 3 white, 1 brown. Genotypes: BB, Bb, bb. Homozygous dominant and homozygous recessive.
Two Heterozygous White Brown Fur Is Recessive Rabbits Are Crossed
Because each rat has a dominant allele for black fur. A homozygous dominant crossed with a homozygous recessive parent is shown below. Biologists use the figure to calculate the likelihood that a child will have a specific genotype. The answer is "homozygous recessive and heterozygous" because homozygous means two of the same allele, while heterozygous means two different alleles.
A dog gives birth to 5 puppies. Seventy-five... See full answer below. What are the resulting percentages of genotypes of a cross between a homozygous dominant parent and a heterozygous parent? Try it nowCreate an account. Which describes the phenotype of the parent rats? The following punnet square shows the results.
Describe all possible phenotypes. Since both parents had to have homozygous recessive alleles for blue eyes in order to express them, they both must have "tt" for a genotype. What percentage of chromosomes does each puppy share with its mother? One is black and one is black with brown spots. Homozygous recessive and heterozygous. All Middle School Life Science Resources. In butterflies, the gene for black wings (B) is dominant to the gene for blue wings (b). Parent's genotypes are Bb and Bb andn the offsprings genotypes after crossing them will be BB, Bb and bb while phenotypes of 3 white rabbits and 1 brown.