In Hereford cattle, the phenotypic expression of coat pattern called line-back (a white line down the center of the back, extending almost to the tail) is considered undesirable. The gene which causes line-back is recessive and autosomal. If 7 cows out of 100 cattle express this trait, what is the allele frequency for this trait? If the line-back cows are not included in the mating population (W22=0), how many line-back cows will be found in the next generation? (Assume 100 cows in the next generation.)

Q: When many families were tested for their ability to taste the chemical PTC, the parental pairs were…

A: The ability to taste PTC is a dominant trait. Taster = TT, Tt Non taster = tt

Q: In Mexican hairless dogs, a double dose of a dominant allele may be lethal. What phenotype should…

A: The condition where two identical genes are present in an individual for a particular character, Is…

Q: A) Calculate genotype frequencies of RR; Rr and rr in the population.      B) Calculate the allele…

A: This data is comprised with Incomplete Dominance.  Incomplete Dominance: In this type of…

Q: Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies.…

A: Hardy Weinberg equation tells about the allele and genotype frequencies in the populations that are…

Q: n guinea pigs, rough coat dominant (r) to smooth coat (r) and black coat (b) is dominant to white…

A: 1 ) Genotypes of the parent will be : RrBb                     and…

Q: Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies.…

A: The handwritten solution given below is the answer.

Q: About 7% of men in a population are red-green colour blind due to a sex-linked recessive gene.…

A: The colour blindness is a sex-linked recessive genetic disorder.

Q: A histology of an organ during an autopsy revealed a large number of glands in the lamina propria…

A: The lamina propria is has loose connective tissues present under mucosal epithelium which fills the…

Q: Butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles DY and DB…

A: Given that, butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles DY…

Q: In a species of dog, plaid color is represented by P and purple by p, short -tailed is T and…

A: Although the phrases genotype and phenotype may look similar, they are very different from one…

Q: Detached earlobes in humans are a result of the presence of a dominant allele. In a class of 30…

A: The genotype is called homozygous when two identical alleles are present and represent the genotype.…

Q: How many mice would you expect to be homozygous dominant and heterozygous for

A: Dominant and recessive alleles alleles that can be expressed only when present in homozygous…

Q: 1)Butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles DY and DB…

A: In incomplete dominance, two alleles produce an intermediate phenotype in a heterozygote. Offspring…

Q: Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies.…

A: The frequency can be found out the hardy Weinberg equation  Which is P2 + 2pq + Q2 = 1  Where P2 is…

Q: this population, one gene (G) controls spot color in giraffes, which shows incomplete dominance.…

A: According to Hardy Weinberg equation-p2 + q2 + 2pq =1 and p + q=1p= frequency of the dominant allele…

Q: In a population of Boer goats, allele G confers +10kg body weight and allele g confers +5kg body…

A: The understanding of genetic and breeding values is crucial in animal breeding programs aimed at…

Q: a gold re white o sets of the possible genotypes of the parental and the resulting F1 fish by…

A: In genetics, the cross which includes only one trait is called a monohybrid cross. The cross between…

Q: influenced trait that acts dominantly in females E compared to large body mass (+). Select all of…

A: Crossing over means of introducing a new combination of genes and hence traits.Crossing over…

Q: In mice, there is an allele that in the heterozygous condition, produces mice with yellow coats.…

A: The male yellow mouse and female yellow mice that have mated to produce offspring must be…

Q: You are studying a population of giraffes. In this population, one gene (G) controls spot color in…

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

Q: The gene dimples is responsible presence or absence of dimples. People with a copy of the dominant…

A: As Dominant allele (D) has dimple whereas recessive allele (d) does not have dimple.So, DD -…

Q: In domestic cats, the allele (L) is a dominant allele for short-hair trait. The recessive allele for…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Labrador retrievers have 3 varieties of fur colour: yellow, chocolate or black. Two genes are…

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

Q: In garden pea plants, the yellow seed colour (Y) is dominant over the green  seed colour (y). In a…

A: Introduction The allele frequency is a measure of how common a gene variant is in a population. To…

Q: Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies.…

A: Hardy-Weinberg Principal- is the method to estimate the frequency of alleles in the population.

Q: If the frequency of the dominant allele is 0.6, what is the frequency of the homozygous dominant…

A: In a population, the allele frequencies remain constant when the conditions causing evolution such…

Q: A Tibetan individual who is heterozygous for the DISCI and EPAS1 loci mates and produces offspring…

A: Heterozygous individuals are those who have two different versions (alleles) of a particular gene.…

Q: If the frequency of the recessive allele is 0.1, what is the frequency of the dominant allele?

A: Genes control the genetic characteristics of an organism.  Genotype is the genetic characteristics…

Q: n the Asiatic Black Bear (a normal XX:XY mammal XX: species) there are two traits under…

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

Q: Red foxes are a species that has genetic sex determination similar to humans, where females are XX…

A: Dominant genes has quality  that they doesn't need the presence of a comparable gene in the gene…

Q: Hummingbirds have brightly colored feathers on their throats that are Let's say these feathers come…

A: Codominance is the type of inheritance in which the two alleles are equally dominant to each other.

Q: What is the contribution per allele for this trait (in inches/allele)

A: Answer: The contribution 2 inches/allele for this trait.

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.