In cattle, coat color is controlled by two codominant alleles. One allele produces a red coat, (R), and one produces a white coat, (W). A cow with heterozygous alleles will have a roan coat. In the same breed of cattle not having horns, (N), is completely dominant over the presence of horns, (n). What phenotype and genotypes would be expected from a cross between a roan, horned bull and a hornless red cow that is a carrier for the horned allele. Show the Punnett square

Q: Coat color in mice (Mus musculus) can show many varieties.  You have two true-breeding mouse stains,…

A: True breeding is a type of breeding in which the parents produce offspring with the same phenotype.…

Q: In pigs, let’s assume that a straight tail (T) is dominant to a curly tail (t).  Let us also assume…

A: According to the Mendelian inheritance each gene has two alleles that determines the phenotype of an…

Q: In mice, the allele C for colored fur is dominant over the allele c for white fur, and the allele V…

A: A) Parents Genotype should be (CC,Vv) and (cc,VV).Mating has occured between a normal colored mice…

Q: s, black color (B) dominates chestnut color (b). Trotting gait dominates pacing gait (t). A cross is…

A: A hybrid organism is one that is heterozygous, which means that is it carries two different alleles…

Q: Cats also have a locus (gene) for a character called agouti. In cats with agouti fur, pigment is…

A: Given :    Agouti allele is dominant to the allele for normal fur.  Let's assume ' A ' for dominant…

Q: In humans, Widow’s peak (W) is dominant over a continuous hairline (w), and short fingers (F) are…

A: It’s given that the child has continuous hairline and long fingers: which means children have…

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: In foxes, two alleles of a single gene, P and p, may result in lethality (PP), platinum coat (Pp),…

A: SOME BASIC INFORMATION IN GENETICS  HETEROZYGOUS - Every gene has two characters one being the…

Q: A male dog with the genotype GgBb is crossed with a female dog with the genotype GgBb. Set up a…

A: Punnet square is graphical representation of breeding or particular crossing event taking place and…

Q: In rats, hair color is either gray (G), black (g), or white. The white color is produced due to an…

A: In genetics, epistasis is defined as a non mendelian theory in which the expression of more than a…

Q: In goats, development of the beard is due to a recessive gene. The following cross involving…

A: Sex influence characteristics are those which  determined by autosomal gene  and are inherited…

Q: In cattle, black coat (R), is dominant to red coat (r). Hornless (H), is dominant to horned (h). A…

A:

Q: Pigment in the mouse is produced only when the C allele is present.Individuals of the cc genotype…

A: Individuals of the cc genotype have no color. If the color is present,it may be determined by the A…

Q: In a newly discovered species of Giant Pacific Octopus, long tentacles (L) are dominant to short…

A: Newly discovered species of Giant Pacific Octopus having long tentacles, strong suction cups and…

Q: What sex ratio would you expect among the offspring of a cross between a normal male mouse and…

A: Sex ratio is defined as the ratio of males and females in the population. Generally in sexually…

Q: In a dihybrid cross of two bi-allelic Mendelian genes, A (two alleles – completely dominant A and…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: In Labrador retrievers, two genes determine fur color: the E gene and the B gene.  Black fur (B) is…

A: Epistasis is the phenomenon in which the genetics  expression of one gene can mask or modify the…

Q: In earlobes, free (F) earlobe is dominant while attached (f) earlobe is recessive. What proportion…

A: According to the given question: Earlobes could be either free or attached. Free earlobe is the…

Q: Colour-blindness is the result of an X-linked recessive allele, Xc. The allele for normal eyesight…

A: The pedigree analysis allows us to determine the pattern of inheritance of a particular trait in the…

Q: In mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal…

A: According to the given question, In mice, dwarfism is caused by an X-linked recessive allele, and…

Q: (1.7 In 'summer squash', white colour in fruits is controlled by a dominant allele, W, and yellow…

A: The objective of this question is to determine the expected ratio of phenotypes in the F2 generation…

Q: In rabbits, the coat color black dominant (B) over brown (b). Short hair is dominant (S) over long…

A:

Q: The long hair of Persian cats is recessive to the short hair of Siamese cats, but the black coat…

A: Alleles for the characterstics od hair and coat color in persian cat.   Long hair- ll Short hair- LL…

Q: A mapping experiment in strawberries shows that the genes for color and plant height are separated…

A: At the point when the alleles of one gene pair on one homologous chromosome pair arranges without…

Q: In ground hogs, Brown (B) is incompletely dominant to white (b). Heterozygous ground hogs are tan.…

A: As Brown (B) is incompletely dominant to white (b) So, BB = Homozygous dominant = White Bb =…

Q: In rabbits, the gene for fur color is multiallelic. Agouti (C) is dominant to chinchilla (Cch),…

A: Term Phenotype refers to the observable characteristics or physical properties which can be observed…

Q: Rabbits can have spotted or solid coats, and the base color can be either black or brown. A spotted…

A: The allele responsible for the spotted coat is represented by P The allele responsible for the solid…

Q: The following pedigree shows the incidence of ABO blood types in a family. Which individual(s)…

A: There are three different alleles, known as IA, IB, and i(O). The IA and IB alleles are codominant,…

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.