Red roan hair colour in some horses is due to codominance of the white allele and the red allele. If a red roan horse mates with a white horse, indicate the genotypic and phenotypic ratios that would result.

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: Does the genotypic ratio equal the phenotypic ratio

A: A dominant allele or a form of the gene is unable to mask the effects completely of a recessive…

Q: In a species of cats, eye color can be gray, blue, green or brown. Lines that are true-breeding for…

A: Introduction :- Pleiotropy is a genetic phenomenon in which a single gene has multiple effects on an…

Q: Pigment of chicken feathers is regulated by two genes, the gene for feather pigment C, and a gene…

A: Dominant character is always expressed in homozygous or heterozygous condition whereas recessive…

Q: In a cross between a dwarf pea plant (homozygous recessive) and a tall pea plant (heterozygous),…

A: INTRODUCTION Homozygous dominant In Homozygous dominant, they have two dominant alleles. Homozygous…

Q: In Drosophila (fruit flies) the gene for eye color is X-linked. The allele R codes for red eyes and…

A: Introduction: Drosophila is a genus of small flies, also known as fruit flies, that belongs to the…

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: There is genre in chickens that controls whether their eggs will be brown or white .Assuming that…

A: Genetics is the branch of science that deals with the study of gene and their inheritance from one…

Q: In pea plants, yellow peas (Y) are dominant and green peas are recessive, smooth peas (S) are…

A: There are two types of crosses:  A Monohybrid cross is the type of cross in which only one character…

Q: In cardinals, a dominant allele R is required for red feathers (r = colorless). In addition, the…

A: a) What would be the genotype of the F1 progeny? answer: 4:0 (heterozygous dominant)   b) What would…

Q: Labrador retrievers have 3 varieties of fur colour: yellow, chocolate or black. Two genes are…

A: A trait is a characteristic feature that is unique to specific individual. Each trait is represented…

Q: Round seeds are dominant over wrinkled seeds in pea plants. Fill in the Punnett square and determine…

A: Punnett square is used to determine phenotypic and genotypic ratios of progenies.

Q: In Doodlewags (hypothetical creatures), the dominant allele S causes solid coat color; the recessive…

A: Genotype of the parents: Father: RrBbAa Mother: Rrbbaa  Reason: The father is yellow, but gives…

Q: For the following problem: Identify the gametes for each parent, build a Punnett Square of the…

A: Brown fur (B) is dominated over the gray fur (b). Cross occurs between the homozygous dominant mouse…

Q: Feather colour in parakeets is controlled by two genes. Blue colour (B) is dominant over absence of…

A: In this question, we are given two genes which are responsible to control feather color in…

Q: Background:   In certain types of cattle, three colors exist: white (WW), white hairs red hair (RR),…

A: There are three types of cattle.  White cattle (WW) with white hairs  Red cattle (RR), with red…

Q: In cats, white patches are caused by the dominant allele P while p/p individuals are solid colored.…

A: 1.) Understanding the GeneticsCoat Color:Dominant Allele (P): Produces white patches.Recessive…

Q: Vildtype pea plants have inflated pea pods and round seeds. Constricted pea pods and wrinkled seeds…

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

Q: The ABO blood group in humans is controlled by a single locus with three different alleles.…

A: Blood is the liquid connective tissue of the body that transports nutrients, hormones, oxygen, and…

Q: The cross AaBb x aaBB results in which of the following phenotypic ratios?

A: The observable physical properties of an organism is known as phenotype. The phenotypic ratio is a…

Q: In guine pigs, rough coat (R) is dominant to smooth coat (r). What is the expected percentage of…

A: ANSWER';- 50% Explain;- A heterozygous guinea pig (Rr) and homozygous passive guinea pig (RR) have a…

Q: Nonrecombinent phenotypes: Female/males with gray body/red eyes; females/males with yellow…

A: GIven: Recombinant genotypes are forme by linked genes and their ocmbinations where these…

Q: Suppose a geneticist is using a three-point test cross to map three linked rabbit morphology and…

A: Linkage is the tendency of genes or other DNA sequences that are close together on a chromosome to…

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.