Duroc Jersey pigs are typically red, but a sandy variation is also seen. When two different varieties of true-breeding sandy pigs were crossed to each other, they produced F1 offspring that were red. When these F1 offspring were crossed to each other, they produced red, sandy, and white pigs in a 9:6:1 ratio. Explain this pattern of inheritance in terms of number of genes, and any allele or gene interactions.

Q: Consider a cross between a true breeding purple flowered pea plant (genotype PP) and a true breeding…

A: Phenotype is the external appearance of an organism.

Q: The presence of second allele (E) affects the coat color of Labrador. In particular, the presence of…

A: This is an example of recessive epistasis. Consider the B locus genes are responsible for the…

Q: A cross like this (between two individuals heterozygous for two traits) is often referred to as a…

A: A two-point cross includes two parents heterozygous for two different loci.

Q: In pea plants, tall plants are dominant to short plants.  Perform the following cross- 2…

A: In this question, we are dealing with a classic Mendelian genetics problem. The key to solving this…

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: Consider five unlinked genes: a, b, c, d, e are the recessive alleles, and A, B, C, D, E are the…

A: Quintuple heterozygote individuals are individuals who have inherited five different versions of a…

Q: A coat color of a horse is governed by many different gene pairs. Dominant B will give the horse a…

A: Given that, B is the dominant gene which is responsible for black color and b is the recessive one…

Q: Researchers studying blind cave fish that lack eyes found that crossing two pure-bred fish from the…

A: Within the puzzling depths of caves, analysts have found fish that have adapted to their environment…

Q: In a species of the cat family, eye colour can be gray, blue, green or brown, and each colour is…

A: Given:

Q: In flies, small wings are recessive to normal wings. If a cross between two flies produces 8…

A: The alleles are generally of dominant and recessive type and some other forms like codominant are…

Q: A coat color of a horse is governed by many different gene pairs. Dominant B will give the horse a…

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

Q: hen crossing a true breeding white mouse with a true breeding brown mouse your friend tells you she…

A: Genes are the functional unit of heredity. They contain information that is transferred from one…

Q: dihybrid cross

A: The dihybrid cross is defined as the mating between 2 organisms which are each heterozygous for 2…

Q: snail, the dominant allele N codes for right-handed shell coiling and recessive allele n codes for…

A: Genes exist in two versions namely"recssive" and "dominant". The recessive alleles are those that…

Q: Parakeets can have white, blue, green or yellow feathers. Feather color in parakeets is determined…

A: The color of feathers in parakeets is determined by genes B and Y. The different feather color…

Q: In wild sunflowers, populations occurs that are either yellow or white. one variety of true breeding…

A: It is given that, in wild sunflowers, populations occur that are either yellow or white. one variety…

Q: During one of the genetics lab, you notice a few Drosophila fruit fly that has a rainbow body.  You…

A: In this case, hereditary crosses and offspring examinations are required to discover the strategy of…

Q: n dogs, black (B) is dominant over brown (b) color. What would be the color of the puppies if a…

A: A diagram that is used to predict the genotypes and phenotype of a particular cross or an breeding…

Q: In a breed of mice fur coat color is determined by two genes. For coat color BB results in black, BT…

A: The question explores the inheritance patterns of fur coat color in a breed of mice determined by…

Q: A scientist studying a species of algae, Gracilaria domingensis, discovered that its color is…

A: Alleles can be described as the different forms associated with particular gene. The formation of…

Q: What is the genetic distance between red petals and waxy texture?

A: Gene distance  Gene distance means the number of bases present between two gene. On the basis of…

Q: Pigeons display a high color variety, here we try to understand the genetic basis of mixed red &…

A: This question explores the genetic basis of mixed red and black stippling of the feathers (kitey)…

Q: A pea plant has a mendilian completely dominant gene for height lower colour phenotype. A pure…

A: Gregor Johann Mendel is considered to be the father of genetics. He postulated the theories of…

Q: Let’s say we are crossing flies with a “big head” mutant trait with flies that have normal sized…

A: Introduction :- A dominant allele is an allele that masks the expression of a recessive allele,…

Q: Pink eye and albinism are two recessive traits found in the deer mouse, Peromyscus maniculatus. In…

A: In this case, albinism and pink eye color are recessive traits found within the deer mouse…

Q: ee different crosses decide the most likely genotype of each of the parents. Use the gene symbols…

A: In this case, Complete dominance at both gene occurs but one gene, when homozygous recessive, is…

Q: In pea plants, purple flowers are dominant to white flowers.  Perform the following cross- A pea…

A: In this scenario, we are dealing with a classic Mendelian genetics problem. We have two pea plants:…

Q: An insect from a strain breeding for white eyes (RRww) was crossed to an insect from a strain…

A: When an organism is heterozygous, it has two distinct alleles of the same gene. For instance, pea…

Q: You have pure breeding lines of lizards.  One pure breeding line has very long tails and the other…

A: Apart from the classical mendelian phenotypic ratios, several non mendelian phenotypic ratio like…

Q: In horses, there are three coat colour patterns called cremello (beige/light brown), chestnut…

A: In the given genetic condition the coat colour in horse produce three types of phenotype in…

Q: the lubber grasshopper is a very large grasshopper,and is black and red and yellow stripes.Assume…

A: Assuming that red stripes are expressed from Gr alleles, yellow stripes from the Gy allele, and no…

Q: In rabbits, an allelic series helps determine coat color. The alleles, in order of dominance, are…

A: In genetics, several experiments were performed to understand the inheritance of a particular trait…

Q: # 1 b) An allele for coat color in mice, Y, produces a yellow coat color when present. The…

A: This is due to the effect of dominant lethal genes.

Q: In wobble bats coat color is determined by a single gene. A black coat is dominant to a brown coat…

A: Answer : The alleles ahoul be  B- black , b- brown The genotype of a homozygous black coated wobble…

Q: As a hypothetical example, a trait in mice results in abnormallylong tails. You initially have a…

A: True breeding is  a type of breeding where the parents produce an offspring that carries the same…

Q: Which of the following rows correctly identifies the parental and F1 generation genotypes?

A: Given albinism is g which is recessive in nature, hence, in order to express this character the…

Q: In a particular lizard species, green skin (G) is dominant to blue skin (g). You decide to cross a…

A: Allele pairs are defined using the words homozygous and heterozygous. Homozygous people are those…

Q: In certain lizards, scaly skin is dominant to smooth skin and speckled color is dominant to grey…

A: Given: Scaly skin - dominant -S Smooth skin - recessive - s Speckled color - Dominant - G Grey color…

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.