The coat colour of some dogs is an example of an epistatic interaction. The common alleles are black (B) and brown (b). There is a separate gene on a separate chromosome that influences coat colour; it prevents colour formation and causes a white coat. L = prevents color formation and causes a white coat l = allows colour formation to occur. If a white dog heterozygous for both traits is crossed with a black dog that is heterozygous for the color gene, which of the following represents the phenotypes of the offspring? Select one: a. Phenotypes White Black Brown 1/2 3/8 1/8 b. Phenotypes White Black Brown 3/8 1/2 1/8 c. Phenotypes White Black Brown 1/8 1/2 3/8 d. Phenotypes White Black Brown 1/2 1/8 3/8

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A: A test cross helps to determine or check the zygosity of a particular individual. In this type of…

Q: Gene A converts compound A (white) to compound B (blue). Gene B converts compound B to compound C…

A: Compound A→→→→→→→→ (white)                            Gene A Compound B→→→→→→→→ (Blue)…

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: In a mammal, there are two; unlinked genes that determine tail length and curliness.  The dominant L…

A: So, according to the Mendel's Inheritance of genes concept let us draw a punnett square for the…

Q: In hamsters the gene for black fur color is on the X chromosome. The dominant allele produces black…

A: Please note that Part B and Part 2 are the same questions repeated. Both have been answered though.…

Q: Two genes control the color and texture of tomatoes: Allele "R" generates a red coloration, and is…

A: The objective of this question is to determine the probability of getting a tomato plant with red…

Q: which of the following is true?

A: Ans. When a blue color flower is crossed with a blue color it produces all blue color but when blue…

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: 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: A pure-breeding pea plant with wrinkled peas, when crossed with a pure-breeding pea plant with round…

A: Individuals have two alleles, and a parent can send only one allele to the offspring, as per…

Q: In mice, brown fur color is dominant to black fur color. Another gene affects the production of…

A: Given information Brown fur color is dominant (B). Black fur color is recessive (b). Pigment…

Q: A woman with blood type A, who is heterozygous for both blood type and Rhesus factor, had a child…

A: The Human Blood group is a classic example of multiple allelism and co-dominance. ABO blood type in…

Q: Normal pigmentation dominates no pigmentation (albino). For an organism to exhibit color, it must…

A: So, the bull with the red heterozygous allele has one red allele and one for no color (albino).…

Q: A monohybrid cross between two pea plants producing yellow peas, resulting in an F1 phenotypic ratio…

A: Monohybrid cross  A cross where only one character is taken under observation.

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

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: 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: 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: In some plants, purple flower color is dominant to white flower color. If a plant that is homozygous…

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Q: Which of the following statements are true regarding the F2 offspring of a mapping cross for three…

A: A three-point cross is a cross done between the 3 genes to know the order and distance between the…

Q: In whippets, wild-type dogs are skinny. A mutation in the myostatin gene causes dogs to become more…

A: Answer: Monohybrid cross : It is the cross between the single characteristics of two parents.…

Q: Consider a one-locus system of simple dominance where the presence of at least one G allele results…

A: A genotype is a scoring of the type of variant present at a given location (i.e., a locus) in the…

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: Thimble foxes cook color is controlled by a single gene while tail length is controlled by a…

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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: Homozygous purple flowers have the genotype WW, and W is a dominant allele. A pea plant with unknown…

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Q: In radishes, the gene controlling color exhibits incomplete dominance. Pure breeding red radishes…

A: Incomplete dominance is a pattern of genetic inheritance in which the phenotype of heterozygous…

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…

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.