In a species of tropical fish, a colorful orange andblack variety called montezuma occurs. When twomontezumas are crossed, 2/3 of the progeny are montezuma and 1/3 are the wild-type, dark grayish greencolor. Montezuma is a single-gene trait, and montezuma fish are never true-breeding.a. Explain the inheritance pattern seen here and showhow your explanation accounts for the phenotypicratios given.b. In this same species, the morphology of the dorsalfin is altered from normal to ruffled by homozygosity for a recessive allele designated f. What progenywould you expect to obtain, and in what proportions, from the cross of a montezuma fish homozygous for normal fins to a green, ruffled fish?c. What phenotypic ratios of progeny would be expected from the crossing of two of the montezumaprogeny from part (b)?

Q: Farmer Brown had two hogs, Olga and Hank.  Olga and Hank were normal, healthy hogs, but whenever…

A: Ogla and Hank must be both heterozygous for the condition. That is why they are producing some…

Q: In mice, a trait called snub-nose is recessive to a normal nose, a trait called pintail iş dominant…

A: The data for three point test cross is given in the figure. The greater number are of parental type.…

Q: Assume that in Michigan squirrels, dark brown fur (B) is dominant to black fur (b). If you mate a…

A: Given  Brown fur(B) dominant  Black fur (b) recessive  Parents  Homozygous brown (BB)  Homozygous…

Q: Suppose the tail length of two populations of lizards is controlled by one gene. To determine the…

A: Is character is represented in an organism by at least two genes, lice at the same location on the…

Q: In the shorthorn breed of cattle, The red and white coat colors are codominant with each other with…

A: Codominance occurs when both parental characteristics are present in the F1 generation. The progeny…

Q: In oats, the color of the chaff is determined by a two-gene interaction. When a true-breeding black…

A: Genes carry coded genetic information in the form of specific nucleotide sequences. This specific…

Q: In a particular mammal, having long whiskers is a SEX-INFLUENCED trait; in FEMALES, long whiskers is…

A: Given  Trait is sex influenced  Long whiskers - dominant in female (recessive in male) Short…

Q: In chickens, some varieties have feathered shanks (legs), but othersdo not. In a cross between a…

A: Homozygosity is a condition where both the copy of the gene will be the same, whereas in…

Q: The red kernel color in wheat is caused by the presence of at least one dominant allele from each of…

A: Answer.  From the given information: The red kernel color in wheat is caused by the presence of at…

Q: Two organisms, AABBCCDDEE and aabbccddee, are mated to produce an F1 that is self-fertilized. If the…

A: Since there are multiple questions in this particular question, I'll answer the first three subparts…

Q: Write the genotypes next to the symbol for each person in the pedigree below assuming that it is for…

A: Ans. 2 If this pedigree is showing dominant trait then it could be            Autosomal Dominant…

Q: To determine whether a particular trait is autosomal or sex-linked, scientists or breeders would…

A: Reciprocal cross occurs between female and male parents, in this, both parents are crossed by…

Q: a. A certain species of spider may have long or short legs. The abdomen may be round or elongated. A…

A: Introduction: The most advancing branch of science is genetics. The study of genetics comprises…

Q: Two average sized parents have three children. The first child is very short, the second child is…

A: Hi, Thanks For Your Question. Answer : Height Is Determined By A Number Of Genes, Each Of Which…

Q: The condition phenylketonuria is caused by a recessive allele. There are two carriers who have…

A: Phenylketonuria (PKU) It is an autosomal recessive condition that causes mental impairment owing to…

Q: 1. Explain the pattern of inheritance and write in the genotypes of the numbered individuals. (a)…

A: The autosomal dominant or X-linked dominant disease is called single gene disorder as the disease…

Q: Erminette fowls have mostly light colored feathers with an occasional black one, giving a flecked…

A: In this question, we are given a total progeny of 48 out of which 22 are Erminette, 14 black and 12…

Q: In the pedigree shown in Figure Q19–14, the first born in each of three generations is the only…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: What phenotypes, in what ratios, would you expect from crossing a person with blood type AB (IAIB)…

A: Answer:  PHENOTYPIC RATIO = It means physical appearance , which shows that ratio of total number of…

Q: A heterozygous individual is crossed with a homozygous recessive individual. a. Draw a Punnett…

A: Punnett square of  cross between heterozygous individual and homozygous recessive individual.

Q: The following pedigree shows the inheritance of deafmutism.a. Provide an explanation for the…

A: Deafmutism is a term that is used to define a person who is deaf. These individuals use sign…

Q: Duchenne Muscular Dystrophy (DMD) is a sex- linked, recessive disease in which a mutation in the…

A: Duchenne’s muscular dystrophy (DMD) is a muscular disorder that is typically inherited by the boys.…

Q: Two alleles of gene C control hair color in horses: C¹and C². Horses homozygous for allele…

A: The correct option for 1st question is C . Incomplete dominance

Q: Assume the height in a particular plant is determined by two pairs of unlinked polygenes, each…

A: Polygenic genes are genes are controlled by two or more alleles. Unlinked genes are those genes that…

Q: The pedigree shown below illustrates the inheritance pattern for a trait controlled by a single…

A: The pedigree analysis shows the mode of inheritance of a genetic trait.

Q: raccoons may have wide, medium-sized, or narrow bands around their tails. They may also have the…

A: Wide bands =Dominant trait Narrow bands =recessive trait Washing food = dominant trait no washing =…

Q: In mice, an allele for apricot eyes (a) is recessive to an allele for brown eyes (a+). At an…

A: Introduction: Mendel has given the law of independent assortment which says that during the transfer…

Q: a. Draw the pedigree of this family. Follow protocols in making a pedigree. MALE b. What is the mode…

A: Genetics is the study of genes, their interactions, and the effect of environment on genes. Broadly…

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

A: The alleles for the MC1R gene that a mouse inherits determine the color of its fur. Mice with two…

Q: . The pedigree below was obtained for a rare kidney disease.a. Deduce the inheritance of this…

A: Diseases have been researched extensively in the recent times. It is observed that diseases are not…

Q: A dihybrid cross between a homozygous dominant for two traits (YYGG) is crossed with a homozygous…

A: Answer:  DIHYBRID CROSS = It is the cross between male and female species with two different traits.…

Q: Below is a pedigree of a human genetic disease in which solid color indicates affected individuals.…

A: In the given pedigree, atleast one member in all generations have the disease. Therefore,…

Q: In the dihybrid cross AaBb ´ aabb, what proportion of individuals are expected to be homozygotic for…

A: In the dihybrid cross between AaBb and aabb, the first parent individual is heterozygous for both…

Q: Scale color in a lizard species is inherited via a single gene with 6 different alleles. (a) How…

A: Apart from the openings of eyes, mouth, nostrils, and cloaca, most of the lizards are totally…

Q: The accompanying pedigree is for a trait with 100 percent penetrance. The trait is not necessarily…

A: An organism possessing identical pairs of genes (or alleles) for a certain trait is called a…

Q: A dihybrid cross AaBb X AaBb is made in which B is dominant and b is recessive, but there is no…

A: Genes are the basic structural and functional units of heredity and the study of genes is called…

Q: In garden pea plants, tall plant height (T) is dominant over dwarf plant height (t). Also, green pod…

A: Given: Tall plant - dominant - T dwarf plant - recessive - t Green pod color - Dominant - G Yellow…

Q: A. In summer squash, white fruit color (W) is dominant over yellow fruit color (w) and diskshaped…

A: The two variants of a gene are known as alleles. Two types of alleles exist, dominant and recessive.…

Q: When Mendel crossed a large number of tall pea plants with short pea plants, all F1 plants were…

A: Introduction "Genotype" refers to an organism's complete genetic information. The observed qualities…

Q: a. A certain species of spider may have long or short legs. The abdomen may be round or elongated. A…

A: We are authorized to answer only one question at a time, since you have not mentioned which question…

Q: A rooster with a particular comb morphology calledwalnut was crossed to a hen with a type of comb…

A: Hello there! As you have posted multiple questions, we are answering only the first question. If you…

Q: Assume that the loci are all independent and that the allele represented by the upper case letter is…

A: Assuming that the loci are all independent and that the dominant allele is represented by the upper…

Q: Assume that in horses, black coat colour is dominant (B) to chestnut colour (b). The troting gait is…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: In the Pea plant, tall plant height (T) is dominant over short (t). Pure-breeding tall and short…

A: Introduction:  First law of inheritance known as Law of dominance. In this law, each character is…

Q: In cocker spaniels, solid coat color is dominant over spotted coatcolor. If two heterozygous dogs…

A: Genetics is the branch of biology that deals with the study of genome of an organism and its gene…

Q: a. A variety of fruit bearing plants with the dominant allele A produces cream-coloured fruit while…

A: Hi. Since you posted more than one question, we will be answering the first one for you. If you want…

Q: The chestnut coat color of horses is due to a recessive gene, while the dominant allele results in…

A:

Q: Most flour beetles are black, but several color variants are known. Crosses of pure-breeding parents…

A: Introduction The first filial generation is the F1 generation, and the second filial generation is…

Q: Three genes in fruit flies affect a particular trait, and at least one dominant allele of each gene…

A: The genotype is the collection of genes in our DNA that are responsible for a specific trait. The…

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.