Several loci affect hair development in dogs. The allele for wire hair (W) is dominant to its allele for straight hair (w). Allow H to represent hairlessness in the Mexican hairless dog and its recessive allele h to represent the gene for typical hair growth in other breeds. The Mexican hairless dog is homozygous for straight hair, but because of epistatic effects of H, alleles for hair formation cannot be expressed. Write genotypes of the following animals with respect to the two loci mentioned. a.) a Mexican hairless dog b.) a dog with straight hair c.) a dog from a strain that is pure breeding for wire hair.

Q: nheritance of one mutant allele of BRCA1 is associated with 70-80% lifetime risk of developing…

A: BRCA1 is a tumor suppressor gene inactivation leads to breast cancer.

Q: Based on the same data from the previous question:   cu  jv  se        31 +   +   se       99…

A: In Drosophila, curled wings (cu), javelin bristles (jv) and sepia eyes (se) are autosomal recessive…

Q: Explain at the biochemical or enzymatic level, the phenotypic consequences of alleles incase of…

A: This is the phenomenon called incomplete dominance which is usually seen in snapdragons. In the…

Q: Albinism in animals is caused by recessive mutations inone of several autosomal genes required for…

A: Albinism and Leucism are autosomal recessive conditions; two copies of an abnormal gene will be…

Q: In humans, hair color is controlled by two interactinggenes. The same pigment, melanin, is present…

A: A Punnett square is defined as a chart that will help in determining the expected percentages of…

Q: mice, the A allele causes agouti fur, the AY allele causes yellow fur and is dominant to the A…

A: The gene in question is thought to be important, and the deadly allele can be dominant or recessive.…

Q: Junctional epidermolysis bullosa (JEB) is a severe skin disorder that results in blisters over the…

A: Junctional epidermolysis bullosa is type of skin disorder in which blisters develop on the skin of…

Q: APOE gene has been found to be a major contributor to sporadic Alzheimer's disease (AD), by acting…

A: The APOE gene is the gene for apolipoprotein E. It is necessary to provide information about the…

Q: Define ‘gene’. What is an allele and loss-of-function alleles? What do these alleles tell us about…

A: "a DNA phase that contributes to the phenotype/characteristic of an organism."

Q: Penile hypospadias, a birth defect in male humans in which the urethra opens on the shaft instead of…

A: Given, Penile hypospadias, is disease or a birth defect in male humans in which the urethra opens on…

Q: The term epistasis is used to refer to a situation in which the expression of a gene is influenced…

A: Epistasis is a phenomenon in genetics in which the effect of a gene mutation is dependent on the…

Q: Lesch-Nyhan syndrome is due to a mutation in a gene that encodesa protein called…

A: Pedigree or family tree is a representation of an individual in a family or close relatives that…

Q: In mice, coat color is due to the inheritance of three genes located on three different chromosomes.…

A: The genotype forms a genetic makeup of a cell, and therefore also determines the phenotype of any…

Q: There are two genetic disorders that result from mutation in imprinted genes: Prader-Willi syndrome…

A: The correct answer is option f. Only III-1 could havе Pradеr-Willi syndromе.

Q: Interested in exploring the genetic pathways that lead to neurological issues, you want to see if…

A: Genetic diseases or disorders can take place in case of present of a mutant gene. The mutation can…

Q: hich of the following best explains how individuals who inherit phenylketonuria alleles can avoid…

A: Phenylketoneuria is a rare genetic condition in which a person is unable to dogest the amino acid…

Q: Male limited precocious puberty results from a rare, sex-limited autosomal allele (P) that is…

A: Dominant allele is one which is expressed over the other that is the other trait is completely…

Q: Match Genotype With Phenotype Consider a newly discovered organism that is bioluminescent.…

A: The genotype shows the genetic makeup of the individual in relation to the trait under study. It is…

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: Bloom syndrome is an autosomal recessive disease that exhibitshaploinsufficiency. A recent survey…

A: A disease is a state of unhealthiness of the physical body, mind and social interaction. A disease…

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.