Epistasis refers to the interaction of genes wherein the expression of one gene is dependent on another gene. For example, suppose there are two genes that code for flower color in a plant, where red, WW or Ww, is typically dominant over expression of white, ww, and yellow, YY or Yy, is typically dominant over green, yy. One type of epistasis expresses a pattern where a dominant allele in either gene produces a red phenotype. Classify the F1 flower color ratio that would be produced from the dihybrid cross for each type of epistasis.

Q: In a multicellular organism, all cells contain the same complete "set" of DNA chromosomes and genes,…

A: In a multicellular organism, there are different types of cells and all of they perform different…

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: A recessive mutation pd causes purple eyes in Drosophila, in contrast to the wildtype red eyes. A…

A: The objective of this question is to determine the proportion of offspring that will have purple…

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: Define ‘gene’. What is an allele and loss-of-function alleles? What do these alleles tell us about…

A: "a DNA phase that contributes to the phenotype/characteristic of an organism."

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: In mice, coat color is due to the inheritance of three genes located on three different chromosomes.…

A: The genotype forms a genetic makeup of a cell, and therefore also determines the phenotype of any…

Q: There are two genetic disorders that result from mutation in imprinted genes: Prader-Willi syndrome…

A: The correct answer is option f. Only III-1 could havе Pradеr-Willi syndromе.

Q: The pedigree below shows the inheritance pattern of a rare X-linked allele for one family. The…

A: Pedigree is a family chart where genetic councillor put some symbol for easy description of a…

Q: A person’s blood type is the result of expression of a gene with three alleles. However, only 2…

A: The blood group is determined by the presence of specific antigen on the plasma membrane of red…

Q: Interested in exploring the genetic pathways that lead to neurological issues, you want to see if…

A: Genetic diseases or disorders can take place in case of present of a mutant gene. The mutation can…

Q: evidence suggests that spherocytosis is incompletely penetrant?

A: Spherocytosis is a condition that affects red blood cells. People suffering from spherocytosis…

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

A: Phenylketoneuria is a rare genetic condition in which a person is unable to dogest the amino acid…

Q: se+ is dominant and causes red eyes; se is recessive and causes sepia eyes sb+ is dominant and…

A: To determine the expected phenotypic ratios in the F₂ generation of a test cross, you can use the…

Q: Suppose that you are studying the role of Protein B, which you believe plays a role in regulating…

A: Apoptosis which is also known as programmed cell death, is defined as a mechanism that will allow…

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

A: ANSWER;- A). 1/16

Q: Are the genes linked, unlinked, or incompletely linked? In Drosophila, white eyes (w) and vestigial…

A: In Drosophila, white eyes (w) and vestigial wings (vg) are recessive traits to the red eyes and wild…

Q: In Drosophila, three autosomal genes have the following map:20 m.u. 10 m.u.a b ca. Provide the data,…

A: Gene mapping is the way in which a genetic map is designed that will use recombination frequency…

Q: An experimental assay for the blood-clotting protein called factorIX is available. A blood sample…

A: Factor IX is a blood clotting protein, which belongs to the family of peptidase Sl. It was found in…

Q: The miniature gene in Drosophila is located on the X-chromosome, It has two alleles; the mutant…

A: The correct answer is option (a) i.e. Xm-/Y.

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: Genes on one gene that affect the expression of genes at different locations are said to be alleles…

A: Some genes are independent and some affect other genes.

Q: In purple potatoes, let's say that 2 unlinked genes are needed to produce purple color. The 1st…

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

Q: Suppose that you are studying the role of Protein B, which you believe plays a role in regulating…

A: Apoptosis is a process of programmed cell death that occurs in multicellular organisms. It is a…

Q: Gene I interacts with gene D to determine the blood phenotypes of humans. Gene I is the gene for…

A: Introduction  An individual's blood is categorised according to their blood type based on the…

Q: In a three-point mapping experiment for the genes a-w-ec, the following percentages of events are…

A: Gene mapping is the mapping of genes to a specific locations on chromosomes.

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.