Normal pigmentation dominates no pigmentation (albino). For an organism to exhibit color, it must have an allele for normal pigment production as well as alleles for a specific color. In cattle, red color dominates black color. An albino bull that has a heterozygous genotype for red is crossed with a red cow. The cow is heterozygous for normal pigment production and for red coloring. What types of offspring will they produce, and what is the probability of producing these types of offspring? Show your work.

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 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: Straight hair is dominant to curly hair. Which parents will give a 25% chance of having offspring…

A: The objective of the question is to determine which pair of parents will have a 25% chance of…

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: In mice a condition called waltzer is recessive. Awaltzer mouse has a defect of the inner ear that…

A: Waltzer's condition is a type of recessive disease. It occurs due to mutation in the av gene but for…

Q: Your friend tell you that he has a calico cat that is male even though you have learned that calico…

A: Calcio cats are generally female in nature and they have tricolor coat of fur.This colouring of fur…

Q: Deafness in cocker spaniels is inherited. The allele for deafness (d) is recessive to the allele for…

A: The mutation of the gene results in changes in the base sequence of the DNA resulting in a variant…

Q: In humans brown eye color is dominant to blue eye color. Suppose that your mother is homozygous and…

A: According to the question, the brown color of the eye is dominant over the blue color of the eye.…

Q: In the lab, a red flower and a yellow flower are crossed. The results are all orange flowers. Which…

A: Parental phenotypes of flower is given to be as red flower and yellow flower.  When these are…

Q: Colorblindness is a sex-linked trait.  If a heterozygous female crosses with a colorblind male, what…

A: It is a sex-linked recessive disorder caused due to the defect in either red or green cone of eye…

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

A: Epistasis occurs when the expression of one gene is influenced by the activation of one or more…

Q: In chickens, congenital baldness is due to a Z-linked recessive gene. A bald rooster is mated with a…

A: Chromosomal determination of sex is also known as allosomic determination of sex and is based on…

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: In dogs, black fur (B) is dominated over yellow fur (b). A homozygous black dog is mated with a…

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

Q: In flies, long wings (W) are dominant to short wings (w). Two homozygous recessive are crossed.

A: Genetic inheritance is the process of transfer of gene from the parent to progeny  Factor affecting…

Q: In a particular animal, coat color is under the control of two interacting genes. Each gene has a…

A: Introduction:- Genotype is defined as the genetic constitution of an individual organism that…

Q: In garden peas, yellow (Y) seed color is dominant to green (y). Because yellow and green are two…

A: According to the Mendelian Laws dominance, independent assortment, and segregation, various…

Q: Blood is controlled by three alleles IA, IB, and i. A woman with O type blood has a baby with A type…

A: A blood type is a classification of blood, based on the presence and absence of the antibodies and…

Q: The hornless trait in cattle is dominant. The horned trait is recessive. A certain hornless bull is…

A: Given: The hornless trait is dominant - HH/Hh The horned trait is recessive - hh A hornless bull is…

Q: Manx cats have no tail. This is caused by a dominant mutation M, which is embryo lethal when…

A: A lethal gene is a gene which when present in its specific condition (dominant or recessive) causes…

Q: Two guinea pigs are crossed.  The father is hetereozygousblack and the mother is homozygous…

A: A dominant trait can express itself if present in homozygous, as well as heterozygous condition…

Q: 3. A man heterozygous for both dominant traits of dimples (D) and free ear lobes (E) marries a woman…

A: Introduction  Phenotype refers to the observable physical or biochemical characteristics of an…

Q: A cross of 2 sweet pea plants with white flowers results in F1 plants with wild type purple flowers.…

A: Alleles are alternatives form of a gene that are located on the same locus of homologous chromosomes…

Q: The following is totally made up (not real). unicorn mane color shows incomplete dominance. R codes…

A: Most of the higher eukaryotic multicellular organisms have two sets of entire chromosomes and hence…

Q: In certain breeds of dogs two different sets of alleles determine the color pattern. Black color is…

A: Mendel, in his study, had analyzed a number of crosses in which two pairs of alternative traits were…

Q: Spotting in horses is dominant over solid color. Black color is dominant over red color.  Two…

A: A trait is a characteristic that is unique to particular individual . A dihybrid cross is a cross in…

Q: Which of the following statements are true regarding Mendel's observations of two factor crosses?…

A: Mendel is known as father of genetics. He studied the inheritance in peace plants. He said that…

Q: Coat color in labradors is determined by alleles of two unlinked genes, B and E. The coat colors…

A: In the given situation, the determination of coat colour in labradors is governed by two independent…

Q: We have crossed true-breeding flies today. Wild type to mutant. Their phenotypes were wt and vg se.…

A: In a genetic experiment involving true-breeding flies, we have crossed individuals with wild-type…

Q: In humans, having facial dimples is dominant to not having facial dimples. Mary has dimples, yet…

A: A dimple is an abnormality of the muscle that results in an indentation in the cheek, especially…

Q: What is Mendel’s law of segregation?     Allele pairs separate during the formation of gametes,…

A: Gregor Mendel is called Father of Genetics. He discovered the laws of inheritance. He has proposed…

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

A: The mendelian genetics involves the study of the inheritance of a character whose genes are located…

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: The phenotypes of individuals that are homozygous dominant and heterozygous for a gene with two…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: One form of red-green color blindness is an X-linked recessive trait. A heterozygote woman has…

A: Color blindness is a deficiency of color vision and the individual with color blindness have…

Q: In horses coat color shows incomplete dominance: the alleles are chestnut color (Hc) and cremello…

A: Given that the trait follows incomplete dominance.   HcHc  is chestnut and HcrHcr is cremello and…

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.