n Andalusian fowls, black (BB) and white (bb) individuals are homozygous. When a homozygous black bird (BB) is crossed with a homozygous white (bb) bird offspring are all bluish-gray (Bb). Show the cross as well as the genotypes and phenotypes of the parental cross between two heterozygous parents. 1. P1: _________ x _________ 2. Punnett Square: 3. Genotype symbols: 4. Genotype in words: 5. Genotypic ratio: 6. Genotypic %: 7. Phenotype symbols: 8. Phenotype in words: 9. Phenotypic ratio: 10. Phenotypic %:

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

A: Lethal alleles are those that cause the death of the entity that carries them.

Q: Describe the phenotypic ratio that is expected for a crossin which both parents have one X-linked…

A: A dominant trait is the one which expresses itself in heterozygous condition. Any trait which is…

Q: Fruit flies with the genotypes XghXgh and Xg+h+Y are crossed. Note that two X-linked loci are being…

A: Alleles are the variants of genes. Dominant allele is the one that is expressed even if present in a…

Q: Which of the following blood types in progeny may be produced by a mating between a man with blood…

A: The blood circulating through the circulatory system is responsible for the transport of oxygen and…

Q: In Drosophila (fruit flies) the gene for eye color is X-linked. The allele R codes for red eyes and…

A: Introduction: Drosophila is a genus of small flies, also known as fruit flies, that belongs to the…

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: crossing father type O blood. 1. A baby with type Ab blood is born into a family where the mother…

A: Blood groups are determined by the kind of antigen present on the red blood cells.  These antigens…

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: Answer the following

A: ANSWER : I'd be glad to help you with the onion male sterility crosses! Understanding the Crosses:In…

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 bears fur colour can be either yellow or tan, and is determined by two alleles of the C gene. A…

A: A genetic trait is considered dominant if it is expressed in a person even in its single copy. While…

Q: If a fruit fly that has long wings and a gray body (LIGG) mated with another fruit fly that has long…

A: The genotype is the representation of the genetic complement of an individual with respect to one or…

Q: An individual has the following genotype. Gene loci (A) and (B) are 15 m.u. apart. What are the…

A: Given that,the Gene A and B are 15 mapping unit apart. The possible gametes are Ab,ab,AB and aB

Q: Supposed a male Lab, homozygous dominant for both alleles, is crossed with a female Lab, homozygous…

A: Labrador is a type of dog. General colours of labrador are  1.Black 2.chacolate  3.yellow As per…

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: Feather colour in parakeets is controlled by two genes. Blue colour (B) is dominant over absence of…

A: In this question, we are given two genes which are responsible to control feather color in…

Q: Which groups of individuals must show the same phenotype in order to produces a 12:3:1 phenotypic…

A: Genes come in pairs and are responsible for the inheritance and expression of the associated…

Q: Fur color is an X linked trait in cats. Black (XB)is dominant over orange (X'). If an orange female…

A: It is given that the fur color in cat is X linked. It also says that Black (X B ) is dominant over…

Q: In cats, color of the fur is X-linked. Black hair is dominant (B), orange hair is recessive (b) and…

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

Q: ack coat is dominant over white coat in guinea pigs. A homozygous black pig is ated with another…

A: Heterozygous genotypes are when both the alleles are different and homozygous is the condition when…

Q: A black guinea pig crossed with an albino guinea pig produces all black offspring. When an albino is…

A: The objective of this question is to understand the genetic situation of the guinea pigs and…

Q: In pea plants, yellow seeds are dominant to green seeds. A heterozygous 2. yellow-seeded pea plant…

A: Nucleic acid is a molecule that is responsible for transferring  or exchanging genetic information…

Q: Scenario A In goats, black fur is dominant to red fur. The gene for this trait can be described as…

A: Black fur is dominant to red fur. The genotype of nanny- BB The genotype of billy- Bb

Q: The dominant white allele (W) is a homozygous lethal and is dominant over the full-color allele (w)…

A: In this genetic scenario involving horse coat color, we have two genes at play: one for white color…

Q: In cattle, “short spine” is lethal shortly after birth; it is caused by the homozygous recessive…

A: Introduction A gene is consisting of a pair of alleles/ factors and can be dominant or recessive.…

Q: A child with AB+ blood is born to a mother that has A- blood.  Which of the following paternal…

A: Introduction  Codominance and multiple alleles are examples in human blood group inheritance. It is…

Q: 10. A heterozygous black haired male hamster is crossed with a heterozygous black haired female…

A: Itbisvgiven that the B allele encodes black color. And it is dominant over white color. BB and Bb…

Q: A researcher crossed a homozygous yellow seed plant (YY) and a heterozygous yellow seed plant (Yy).…

A: In a diploid organism, the expression and interaction of two alleles for a particular gene results…

Q: Sex determination in birds is different from that in humans. The sex chromosomes in birds are called…

A: Sex ratio is defined as the ratio of males and females in the population. Generally in sexually…

Q: The cross AaBb x AABB results in which of the following phenotypic ratios? 9:3:3:1 1:1:1:1 1:1 1:0

A: Dihybrid cross When a single cross of two different individuals for two traits is done…

Q: Draw a Punnet square indicating the F2 genotypes from the mating of an F1 male (QQBbHh) with an F1…

A: Trihybrid cross is involved because there are found involvement of three genes.

Q: The cross AaBb x aaBB results in which of the following phenotypic ratios?

A: The observable physical properties of an organism is known as phenotype. The phenotypic ratio is a…

Q: The presence of second allele (E) affects the coat color of German Shepherd. In particular, the…

A: Dogs' coats come in a variety of colours, patterns, textures, and lengths. The colour of a dog's…

Q: If two white mice are crossed, and nine white and three brown mice result, the dominant allele must…

A:

Q: bb = red eyes 1. What are the phenotypes (descriptions) of rabbits that have the following…

A: A dihybrid cross is a cross between two individuals who differ in two features controlled by two…

Q: The image shows a pair of homologous chromosomes from a single parent before gamete production. M1…

A: Genetic linkage is a study which shows us the  genes or alleles which are close to each other on a…

Q: In cats, the locus for orange coat color is sex linked. Male cats that are black have the o+ allele,…

A: This problem involves determining the probability of a specific offspring phenotype resulting from a…

Q: In pea plants, the tall trait is dominant and the recessive trait is short. What is the GENOTYPE…

A: in genetics , cross are done to study the inheritance patters of different traits . it gives idea…

Q: mice coloring is determined by three alleles of the agouti gene.  AA, codes for agouti coloring, AT…

A: Three alleles are given in which AA allele codes for agouti color, AT allele codes for black with…

Q: # 1 b) An allele for coat color in mice, Y, produces a yellow coat color when present. The…

A: This is due to the effect of dominant lethal genes.

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.