In Labrador retrievers fur color is controlled by two genes. One gene controls pigment production with the dominant B allele producing a black pigmentation and the recessive b allele a brown pigmentation. The other gene controls the deposition of the pigment in the hair with the dominant E allele producing a functional transport system and the recessive e allele a nonfunctional transport system. Which of the following genotypes belongs to a true-breeding brown lab, i.e. a lab that produces nothing but brown offspring when bred with another lab of the same genotype?   Choose an answer below: B/b, e/e b/b, E/e b/b, e/e B/B, e/e none of the above

Q: Height in gryphons is determined by a single locus. You cross a two 9' tall gryphons and get 1/4…

A: Unlike Mendel's pea plant,  gryphons do not show two clear cut phenotypes of height. They come in…

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: A series of crosses were performed between pure breeding lines of mice with different coat colours.…

A: Gene interaction is a type of interaction between two or more genes which results in a single…

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: Describe the most common molecular mechanism for recessively inherited human genetic diseases such…

A: Cystic fibrosis is an inherited life threatening disorder which damages lungs and digestive system.…

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: In animals, embryonic lethal mutations can either in zygotic or maternal effect.  In zygotic embryo…

A: DISCLAIMER FOR MULTIPARTSince you have posted a question with multiple sub-parts, we will solve…

Q: In humans, the genetic disease cystic fibrosis is caused by a recessive allele (a). The normal…

A: Cystic fibrosis is only caused when both of the mutant alleles for cystic fibrosis are present. AA…

Q: Which of the following scenarios best describes an epistatic gene? Select one: a. Fur pattern is…

A: A gene is the essential physical and functional unit of heredity. These are made up of DNA. Some…

Q: In mice, gene A is epistatic to gene B. Dominant allele "A" allows for pigment to be transported to…

A: Epistasis is the type of gene interaction in which a gene masks or interferes in the expression of…

Q: elect all examples of mutations that are likely to e dominant to wild-type alleles. elect all…

A: Dominant mutations are those mutations which are either present in the homozygous or heterozygous…

Q: In a study, an undergraduate student discovered a new enzyme involved in the metabolism of…

A: Enzymes are usually protein molecules which catalyzes several biochemical reactions. It works as a…

Q: A single yeast cell placed on a solid agar will dividemitotically to produce a colony of about…

A: Cell division is a natural process in which a parent cell divides into two daughter cells. Cell…

Q: catalyse the corresponding reactions indicated above. The recessive alleles a, b, c and d are…

A: Independent assortment is one type of genetic recombination. When chromosomes are sorted into…

Q: Marfan syndrome is a disease caused by a rare dominant allele of the fibrillin-1 gene. Fibrillin-1…

A: Marfan syndrome refers to the genetic disorder related to connective tissue characterized by tall…

Q: The color of chickens is determined by interacting loci: AA or Aa give white, aaBB or aaBb give…

A: AA o Aa = dominant (white) aa = recessive (color)

Q: In Labrador retrievers fur color is controlled by two genes. One gene controls pigment production…

A: The coat color in Labradors is controlled by two genes; one responsible for producing the pigment…

Q: magine that you finally solved the mystery of the color pattern of zebras. One gene defines the…

A: Codominance is a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully…

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: hoose which of the following is true: a) Haploid cells have one allele per gene b) Haploid cells…

A: DNA is the genetic material present in most of the living organisms. The DNA is made up of 4…

Q: While studying the genetics of the "Cute Faced Bat" face structure gene, three alleles (CO, CN, CF)…

A: An allele is a gene's alternative version that exists on the same locus. Each gene only has two…

Q: A mutant allele in persons with familial hypercholesterolemia (FH) causes death due to a lack of…

A: Introduction :- Hypercholesterolemia is a medical condition characterized by high levels of…

Q: The dosage of X chromosome expression is equalized between male and female mammals.  Think about the…

A: Calico cats produce a fur coat exhibiting both orange and black colors. The coat color gene is…

Q: Which of the following statements is/are true of the variegated eye color phenotype in Figure…

A: Variegated eye color is a mutant eye color that expresses both red-white mosaic color as a white…

Q: Wild-type strains of the haploid fungus Neurospora canmake their own tryptophan. An abnormal allele…

A: Autotrophic strains are those which does not require the aminoacid as it has genes which are able to…

Q: In a tissue engineering experiment, stem cells are grown in a circular dish (diameter = 3 cm) with a…

A: values given in this experiment required for calculation are  diffusion rate = 1*10-5 cm2/s dish…

Q: Consider the MN blood system in humans. This blood system consists of only two alleles, M and N, and…

A: A population is a group of individuals of the same species inhabiting a specific geographical area.…

Q: A RFLP is discovered that is linked to the gene for Duchenne’s muscular dystrophy (DMD). DMD is an…

A: RFLP (Restriction Fragment length polymorphism) : RFLP (Restriction Fragment length polymorphism is…

Q: In the yawncat (a rare hypothetical animal), the dominant allele R causes solid tail color, and the…

A: ANSWER;- A). 1/16

Q: The result of a test cross of a yeast cell that is heterozygous for three genes are summarized in…

A: A gene is the structural and functional unit of heredity. A gene exists as two alternative forms…

Q: Several loci affect hair development in dogs. The allele for wire hair (W) is dominant to its allele…

A: Wire hair is dominant. Wire hair-W Straight hair-W Hairlessness is dominant in mexican dogs.…

Q: In the species Polyfarius obscescens, one gene controls lipid storage. Individuals with the dominant…

A: Storage lipids, also known as triacylglycerols, membrane lipids, which include glycerophospholipids…

Q: Which of these predictions would you make for a gene that is haplosufficient and essential for…

A: In haploinsufficiency (most genes), a solitary typical allele gives sufficient capability, so A+A−…

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: One particularly useful feature of the Hardy-Weinberg equation is that it allows us to estimate the…

A: Hardy-Weinberg equilibrium states that, in a population allele and genotypic frequencies will remain…

Q: a) List all of the phenotypes we could observe among offspring of these Ss heterozygote parents. b)…

A: a)The possible phenotypes among offspring of Ss heterozygote parents are:- SS homozygote (spine…

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

A: Phenylketonuria is an inherited disorder that increases the level of phenylalanine in the blood of…

Q: Consider the following statement: ‘female, w+w flies have red eyes’. In this example: Group of…

A: The objective of the question is to identify the correct relationship between genotype and phenotype…

Q: determining coat color is the agouti gene?

A: The coloration, pattern, and length of the cat fur is governed by numerous genes and is determined…

Q: In the nematode C. elegans, homozygosity for the e mutant allele causes an extreme "uncoordinated"…

A: Penetrance is the term which describes the probability of a gene being expressed and the term…

Q: Tick all the essential steps to demonstrate a genetic linkage between a disease and a molecular…

A: Genetic linkage is the tendency of certain genes to be inherited together due to their location on…

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…

Q: Assume that a single gene determines coat coloration in cats, with the B allele resulting in orange…

A: A. What is the probability that Hobbes and Pepper have three kittens, Hopper (male), Pepsi (female),…

Q: Based on the information shown in the chart above, what is the most likely inheritance pattern for…

A: Mutation is defined as the sudden inheritable change in the DNA Sequence by any mutagens.

Q: Based on the data in Table 1, which individual(s) is/are heterozygous? Select all that apply   a) B…

A: Heterozygous implies that different variations of a certain quality from each parent have been…

Q: If A-P width is the most important regulator of digit number, which basic cellular mechanism would…

A: Digit is simply a common term that refers to the fingers or toes present in the land vertebrates.…

Q: In mice, the trait for high cholesterol is specified by a dominant allele designated HC, whereas the…

A: A dihybrid cross is a cross in which two traits are involved.  As per the question , two traits are…

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.