In humans, curly hair is dominant to straight hair. A woman heterozygous for curly hair marries a man with straight hair and they have children. a. What is the probability that the first child will have curly hair? b. What is the probability that in a family of four children 3 will be curly and 1 will be straight haired? c. What is the probability that the first three children will be curly-haired girls and the next will be a straight haired boy?

Q: Albinism is inherited as a recessive trait in humans. If the parents are both  heterozygous for the…

A: Albinism is a rare genetically inherited trait that is only expressed in the phenotype of homozygous…

Q: Is it possible for a bald man and a nonbald woman to have a nonbald son and bald daughter? A. Yes,…

A: Answer: Introduction: One current myth is that hair loss in men is transferred down by the maternal…

Q: Two genes control color in corn snakes as follows:O– B– snakes are brown, O– bb are orange, oo B–…

A: A gene is the physical and functional unit of heredity. They pass information from one generation to…

Q: Hemophilia is a X-linked/sex linked recessive trait in humans. The dominant allele (H) causes normal…

A: Himophilia is the disorder related to blood clotting. it is sex linked recessive disorder. So only…

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: A man who is an achondroplastic dwarf with normal vision marries a color-blind woman of normal…

A: Achondroplastic dwarfism is an autosomal dominant inherited disorder which causes a type of…

Q: Theoretically, what is the expected result from the parental cross of a grey mouse and an albino…

A: Each gene has two alternative forma known as alleles, which code for different versions of a…

Q: This is a modified question from the textbook, Campbell Biology in Focus (3rd edition), question #5…

A: Colour blindness is an x linked recessive disease in which the person affected is unable to…

Q: a. If individual IV-7 married a person who was unaffected with Waardenburg syndrome, what is the…

A: Waardenburg syndrome is one of the examples of genetic disorders and results due to the disturbance…

Q: Silky feathers in fancy breeds of chickens are caused by a gene whose effect is recessive to that…

A: Genes are the functional units of heredity. It carries information from one generation to another.…

Q: In garden peas, long stems are dominant to short stems, and yellow seeds are dominant to green…

A: Genes that are found on the different chromosomes or far apart on the same chromosome and when they…

Q: In humans brown eye color is dominant to blue eye color. Suppose that your mother is homozygous and…

A: According to the question, the brown color of the eye is dominant over the blue color of the eye.…

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: phenotype of a cat

A: Phenotype : A phenotype is an individual's observable traits.

Q: n rats, black fur color is dominant to white fur color, and pointy ears are dominant to round ears.…

A: Introduction:  Law of independent assortment is based on dihybrid cross. It states that inheritance…

Q: In garden peas, long stems are dominant to short stems, and yellow seeds are dominant to green…

A: According to the question give that :  Long stems are dominant to short stems, So, dominant allele…

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: In cats, there is a gene that codes for fur colour on the X chromosome. One allele gives black fur,…

A: In case of cats , gene that code for coat colour is present on the X chromosome. Two fur colour are…

Q: The long hair of Persian cats is recessive to the short hair of Siamese cats, but the black coat…

A: A dihybrid cross in one in which organisms that differ in two different characters are mated to…

Q: In mice, albinism (g) is recessive to grey coat colour (G). A grey mouse mated with an albino mouse.…

A: Answer:- Dihybrid cross:-   G (Grey coat color) g (albino coat color) G (Grey coat color) GG…

Q: Phenylketonuria (PKU) is a disease that results from a recessive gene.Suppose that two unaffected…

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Q: A man and his wife are both heterozygous  for brown eyes. They have ix children all of whom have…

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A: DMD is a sex linked disorder . And it's genetics depends on the x chromosome.

Q: A husband and wife have typical vision, although both of their fathers are red-green colorblind (an…

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Q: In rats, black fur color is dominant to white fur color, and pointy ears are dominant to round ears.…

A: Introduction The relationship between two gene variants is referred to as dominant. Each parent…

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

Q: In humans, potential or expecting parents can be tested for the presence of the allele for the…

A: Cystic fibrosis is a hereditary disease that affects the lungs and digestive system. The body…

Q: In humans, brown eyes (B) are dominant over blue. A brown eyed man marries a blue-eyed (b) woman and…

A: Brown eyes (B) = Dominant  Blue eye (b)= Recessive

Q: In cultivated flowers called “stocks,” the recessive genotype of one locus (aa) prevents the…

A: Given: In cultivated flowers called “stocks,” the recessive genotype of one locus (aa) prevents the…

Q: A man and his wife are both heterozygous for brown eyes. They have six children all of whom ve blue…

A: 6. A man and his wife have brown eyes. Their six children have blue eyes. a. Explanation b. Chances…

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: In Border Collies, black coat (B) is dominant to red coat (b). A breeder has a black male that has…

A: 1) GENOTYPE- Set of genes acquired from our parents and will pass this to the upcoming generation.…

Q: Phenylketonuria (PKU) is a disease that results from a recessive gene. Suppose that two unaffected…

A: Phenylketonuria (PKU) is a genetic disorder that arises due to a mutation in the PAH gene. it is a…

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: Consider a guinea pig with a homozygous genotype and a white fur color phenotype. a. What is the…

A: The alleles are generally of dominant and recessive type and some other forms like codominant are…

Q: Assume that right-handedness (R) is genetically dominant over left-handedness (r) in humans, and…

A: Genetics is the branch of biology that deals with the study of genes, their inheritance patterns,…

Q: Theoretically, what is the expected result from the parental cross of a grey mouse and an albino…

A: Dominant trait is grey coat( G) Recessive trait is albinism (g) The cross is between grey mouse and…

Q: In guinea pigs, short hair (S) is dominant to long (s). Black fur (B) is dominant to albino (b). A…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: In humans, curly hair is dominant to straight hair. A woman heterozygous for curly hair marries a…

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

Q: square for a cross between two heterozygous pea plants with violet flower color. a. What genotypes…

A: A monohybrid cross is a genetic mix between two individuals who have homozygous genotypes, or…

Q: In humans, the genes for coloblindedness and hemophilia re both located on the X chromosome with no…

A: Color blindness can be defined as the type of genetic disorder in which an individual cannot…

Q: Cystic fibrosis is a recessive human condition. A male with Cystic fibrosis and a woman with a…

A: As Cystic fibrosis is a recessive human condition. So, mother must carrier at least to displays…

Q: The allele for tall pea plants is dominant over the allele for short pea plants. If two heterozygous…

A: As per the guidelines we are supposed to answer only the first question in case of multiple…

Q: A husband and wife have typical vision, although both of their fathers are red-green colorblind (an…

A: X-linked red-colour blindness is a recessive trait. Females heterozygous for this trait have normal…

Q: n humans, one type of red-green colorblindness (n) is sex-linked and recessive. A) A woman who is a…

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

Q: A heterozygous bald man marries a recessive nonbald woman.  What is the phenotypic ratio of the F1?

A: A cross of Hetrozygous dominant ( for Baldness) with homozygous recessive ( for non-baldness) should…

Q: In humans, brown eyes (B) are dominant over blue (b)*. A brown-eyed man marries a blue-eyed woman…

A: Punnet square isbgiven by Reginald C. Punnet. Here, the gametes and offpsrings are denoted in a…

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.