Snuffleups are small, ant-eating mammals that live deep in the jungles of Brazil. They possess a nose that varies between 3 inches long and 19 inches long. The exact length of the nose is determined by quantitative loci. If one crosses a 19-inch nosed snuffleup with one that has a 3-inch nose, one gets F1 offspring with 11-inch noses. When one crosses two F1 individuals, one gets an array of nose lengths from 3 inches to 19 inches long. However, among the F2, 3-inch noses occur only about 1 in 256 offspring and 19-inch noses occur about one in 256 offspring. How many ALLELES are involved in forming this trait?

Q: Imagine that Mendel is tending a garden of 100 pea plants. He has 20 plants that are homozygous for…

A: Given  20 plants homozygous for purple allele. 50 plants are Heterozygous. 30 plants are homozygous…

Q: In birds, a wingspan is determined by two genes, one with complete dominance of one allele over the…

A: Introduction :- Complete dominance is the phenomenon in which one allele which is dominant…

Q: Suppose that a trait is inherited by simple dominance.If two heterozygotes are mated, what is the…

A: When a single gene codes for an inherited feature and that gene has two different versions, or…

Q: If a heterozygous black hen mated with a white rooster, what is the probability an offspring would…

A: Homozygous and heterozygous are words that are used to describe allele pairs. Individuals carrying…

Q: In four-o’clock plants, the allele for red flower color has an effect that is incompletely dominant…

A: 1)this is an example of incomplete dominance  the phenotype of the parents is Pink from the above…

Q: In a randomly mating population of mice, 3 out of 200 mice are anemic. Anemia is a recessive…

A: Introduction The Hardy-Weinberg equilibrium principle states that the allelic frequency in a…

Q: The gene for hair color in rabbits has two alleles: Q and q. Q is dominant and codes for brown hair…

A: Genotype --   A genotype is defined as genetic characteristics of an organism . It is the individual…

Q: Suppose that in a mammalian species, the allele for black hair (B) is dominant to the allele for…

A: According to Mendelian inheritance, a single character is controlled by one or more genes and each…

Q: You are a cat breeder and was asked to choose two parents (male and female) among a group of cats…

A: A genetic cross is the intentional mating of two people that results in the combination of genetic…

Q: In certain plants, the tall trait is dominant to the short trait. If a heterozygous plant is crossed…

A: Let T be the dominant tall allele and t be the recessive short allele Genotype of heterozygous…

Q: Ginny Weasley is attempting to breed her pygmy puff, Arnold, who is pink & fuzzy to her friend's…

A: Chi square test is a statistical test. It is used to find whether the null hypothesis is accepted or…

Q: In a group of guppies, some individuals have a spotted tail and others have an unspotted tail. In…

A: In diploid organism every chromosome is present in two copies. So every gene has two alleles…

Q: In dogs, black fur (B) is dominant to brown fur (b). In a genetic cross of two dogs that are…

A: It is given that black fur (B) is dominant over brown fur (b). The cross is between two dogs with…

Q: you observe the following data: 5 white-eyed males, 18 wild-type males, 7 white-eyed females, and 10…

A: Allele is the alternate form of a gene. Gene is the sequence of nucleotides that results in…

Q: Assume that coat texture and coat color in domestic dogs are two different traits that are…

A: Genes are the heritable unit that carries the genetic information from the parent generation to the…

Q: In Sheep, hairy fleece is dominant over wooly fleece. White fleece is dominant over black fleece and…

A: The Punnett square is a square diagram which is used in genetic analysis to forecast genotypes in a…

Q: The bird species described in question 5 has an ornamental plumage on its head.  The plumage…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: Two true-breeding stocks of guinea pigs are crossed. One parent has red eyes, short tail and the…

A: The Law of Independent Assortment states that when there are two pairs of characters, the…

Q: What is the contribution per allele for this trait (in inches/allele)

A: Answer: The contribution 2 inches/allele for this trait.

Q: Do you think these differences in plumage arise from incomplete dominance between two alleles at a…

A: Incomplete dominance: when neither of the alleles express their characters in the phenotype…

Q: In birds, wingspan is determined by two genes, one with complete dominance of one allele over the…

A: The mean of the data is determined by  Mean = ∑total number of valuesvalue Mean = (20 + 19.6 + 18.3…

Q: Snuffleups are small, ant-eating mammals that live deep in the jungles of Brazil. They possess a…

A: A cross between 19 inch-nosed snufflepuff and 3-inch-nosed snufflepuff produces 11 inch noses. The…

Q: Imagine that Mendel is tending a garden of 100 pea plants. He has 20 plants that are homozygous for…

A: The alleles are the alternative forms of gene that are located at the same locus of a homologous…

Q: In chickens, black feathers (B) are dominant over white feathers (b). The sex ratio of chickens is…

A: Genetics is a branch of biology that is concerned with the study of Nucleic acids ( Ribonucleic…

Q: In birds, wingspan is determined by two genes, one with complete dominance of one allele over the…

A: Mean is the sum of all the values divided by total number of values. Variance is the sum of the…

Q: A rancher determines that the average amount of wool produced by a sheep in her flock is 22 kg per…

A: Narrow sense heritability is the fraction of the phenotypic variance that occurs due to one of the…

Q: Suppose a species of tulip has three alleles for the gene that codes for flower color. The CR allele…

A: In this above question we have to know two things that one is CR is dominant over Cp and Cw and Cp…

Q: In guinea pigs, the gene for black coat color is dominant to the gene for white coat color. A…

A: The transfer of character from parents to offspring is known as inheritance. Progeny receives its…

Q: Consider bats, where the folded ear allele (e) is recessive to the upright ear allele (E). If, in a…

A: According to Hardy weinberg principle p2+q2+2pq= 1 p+q=1 where p = frequency of the dominant allele…

Q: You know that hamster unicorns (Phodopus monocerus) will be the next big pet craze and are…

A: Mendelian inheritance is defined as the inheritance of specific traits controlled and regulated by a…

Q: Cross a male rat with heterozygous brown fur with female rat with white fur. Note that brown is…

A: Let the trait under discussion be labelled as R/r Hence, Brown:- RR or Rr White: - rr When brown rat…

Q: If you were to cross a true breeding brown mouse with a true breeding white mouse, and all the…

A: If on crossing a true breeding brown mouse with a true breeding white mouse , we got all the brown…

Q: Create a Punnett square and determine the genotypes and phenotypes for the resultant offspring in…

A: The physical qualities of an organism that may be observed include the organism's appearance,…

Q: Fur color is codominant in cows. A roan cow has a fur color of orange and white. What are the…

A: Non- Mendelian inheritance is an inheritance in which characters are not seperated out on the basis…

Q: In cats, a black cat when crossed with a white cat produces a tabby which appears to be a grey cat…

A: There are few points : Alleles that lack dominant and recessive relationship and both are observed…

Q: Use the following information to answer the next question. In a breeding experiment, a pure plant…

A: Mendel is also known as father of genetics. He had contributed as lot in field of genetics.

Q: If we cross a pure red-eyed female rat with a white- eyed male rat, what is the expected ratio of…

A: The red trait is encoded by the gene present on X chromosome. The X^R allele encodes red color and…

Q: A pea plant with round seeds (Rr) is crossbred with another pea plant with wrinkled seeds (rr). What…

A: An allele is a variant form of a given gene.  Phenotype is the observed physical traits of an…

Q: wo organisms are both true-breeding for different forms of a trait: one shows a dominant phenotype,…

A: A gene is present in different forms that are expressed in a phenotype; allele is a one of the…

Q: According to Figure 3, what is the probability that individual #17 in generation III will show the…

A: The trait is autosomal recessive in nature. Because of following reason: The trait skips from one…

Q: A fish with red eyes and yellow scales is crossed to a pure-breeding fish with brown eyes and orange…

A: To determine the type of inheritance for the given question, we have to focus on the number of…

Q: he french biologist crossed wild gray colored mice with white mice. In the first generation, all…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: Consider 2 loci in Angus cattle: One locus for coat colour G allele = Black is dominant over g…

A: Given that, there are two loci in Angus cattle: one locus is for coat color and another one is…

Q: What would the genotypes and genotypic ratio be for the F2 generation produced in a phenotype and…

A: From the monohybrid cross, Mendel’s law of segregation was given. According to this law, when two…

Q: A scientist is investigating the inheritance of two autosomal recessive genes in rat, ear length…

A: Through autosomal recessive inheritance, a genetic feature or disease can be passed down from one…

Q: In the Punnet square, Black fur (B) is dominant over brown fur (b). What is the GENOTYPE of all four…

A: A Punnett square is a diagram that permits you to decide the expected % of various genotypes in the…

Q: he human MN blood group is determined by alleles (M and N) for a single gene that code for two…

A: If the two individuals have MN blood group, then the phenotypic and genotypic ratios of their…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.