In mice, the A allele causes agouti fur, the AY allele causes yellow fur and is dominant to the A allele. The homozygous AY AY genotype is lethal.   Why is the AYAY homozygous condition lethal?

Q: In humans, four different blood types (A, B, AB, and O) are encoded by three alleles 1. I. and &…

A: Antibodies and antigens are types of blood proteins that vary from person to person. Antigens are…

Q: In ogres, nose type results from a genetic maternal effect where the autosomal allele for a warty…

A: An autosomal allele is present on the chromosomes other than sex chromosomes.

Q: Sickle cell anemia is a blood disorder that is expressed with incomplete dominance. The homozygous…

A: Genes are generally referred to as the basic unit of heredity. They are a part of DNA and are…

Q: Polydactly is an autosomal dominant phenotype. In this pedigree, I-2 has one copy of the dominant…

A: Variable expressivity occurs due to the similar genetic condition among different people which…

Q: A geneticist is using a three-point testcross to map three linked Drosophila recessive mutations…

A: In our analysis of genetic mutations, it is imperative to calculate recombination frequencies to…

Q: A woman with blood type A, who is heterozygous for both blood type and Rhesus factor, had a child…

A: The Human Blood group is a classic example of multiple allelism and co-dominance. ABO blood type in…

Q: Define wild-type alleles (+)

A: Wild type allele is the phenotype of the organism that is the product of standard normal alleles.…

Q: II III 2 I 1 2 3 ото 1 2 до 8 3 4 5 4 5 что 6 7 6 7 8 9

A: Introduction :- Cystic fibrosis is brought on by a mutation in the CFTR gene (cystic fibrosis…

Q: If I got an A from my father and a O from my mother for my genotype. How would my phenotype be…

A: An allele is one of several different forms of genetic information that is present in our DNA at a…

Q: A research team genotyped hundreds of families affected by haemophilia. Among those families, they…

A: RFLP is found on X chromosome and it is a sex-linked recessive disorder. The daughter who inherited…

Q: In goats, a beard is produced by an autosomal allele that is dominant in males and recessive in…

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

Q: A recessive epistasis cross gives in the F2 a 9:3:4 phenotypic ratio. What is the expected…

A: Epistasis: one gene interferes with the expression of the other gene.

Q: The A & B antigens in humans may be found in water-soluble forms in secretions, including saliva of…

A: Antigens are generated in the human body by the allelic activity of the A, B, and O group loci in…

Q: The pedigree shows inheritance of an autosomal recessive disease in an extended family. Assume…

A: Although the trait is skipped in the pedigree, autosomal recessive inheritance is discovered. The…

Q: Color blindness in humans is controlled by an X-linked completely recessive allele (Xc), while…

A: Introduction :- Color blindness (colour vision deficit) is a condition in which a person's ability…

Q: In humans, blood type is inherited based on multiple alleles in which type A and type B are dominant…

A: Note: First question is incomplete and upload it separately. In pea plants, round seeds are dominant…

Q: In humans, hemophilia is an X-linked recessive disorder that affects the gene for factor VIII…

A: Genetic disorders can be inherited either through recessive or dominant mutation. In case of a gene…

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

A: Introduction  Certain genes are absolutely essential for the survival of an organism and the allele…

Q: What is the genetic distance between red petals and waxy texture?

A: Gene distance  Gene distance means the number of bases present between two gene. On the basis of…

Q: The correct answer is : codominance and incomplete penetrance because in codominance, heterozygotes…

A: Dominance is a characteristic which is followed when both the alleles or at least one the allele is…

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: n mice, the Ay allele of the agouti gene is recessive lethal, but it is dominant to wild type for…

A: Introduction  In genetics, dominance and recessiveness refer to the relationship between two or more…

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

A: A mutant allele is a variant form of a gene that has arisen due to a change or mutation in the DNA…

Q: Color blindness is an X-linked recessive disease. A female and a male with normal vision have 4…

A: The failure to discriminate between red and green colors is the most common symptom of color…

Q: A recessive maternal effect mutant in zebrafish, called ichabod, results in embryos lacking heads…

A: The correct answer is option C.

Q: What are the genotypes of the male and female parnets? What is the allele makeup of the male that…

A: Deuteranopia or color blindness is the type of color deficiency in relation to the vision where the…

Q: In mice, the Y locus controls coat color, and the Y allele (yellow) is dominant to y (non-yellow).…

A: In multicellular and other eukaryotic organisms, the genetic makeup of the organism consists of 2…

Q: Two male mice, which we will call male A and male B, are bothphenotypically normal. Male A was from…

A: An organism has phenotype and genotype. Phenotype is the observable characteristics and genotype is…

Q: This pedigree traces the inheritance of a rare disease in humans. a. Based on this pedigree, is the…

A: Answer is given below.

Q: A sex-linked recessive allele rg causes a red-green colorblindness in humans. A normal woman whose…

A: Mostly the sex-linked diseases are X-linked ( unless stated otherwise). These alleles are found only…

Q: The ABO blood group in humans is controlled by a single locus with three different alleles.…

A: Blood is the liquid connective tissue of the body that transports nutrients, hormones, oxygen, and…

Q: In ogres nose type results from a genetic maternal effect where the autosomal allele for a warty…

A: It is given that warty nose is dominant over smooth nose. Also given that shekinah with warty…

Q: Blood types in humans are caused by a combination of two of three possible alleles - IA, IB, and i.…

A: Blood types can be decided by looking at the family and the transfer of different alleles. Sometimes…