A gene that encodes collagen in an animal particiaptes to control size. An animal homozygous for the F allele are very large, and an animal homozygous for the f allele are very small. But, heterozygots have a medium size between these. This is an example of...       Mendelian Dominance     codominance     plietrophy     variable expression     incomplete dominance

Q: Persons with sickle cell anemia have a mutation in the hemoglobin gene. This trait is produced by…

A: Sickle Cell anaemia is a genetic disorder caused by a defective allele on chromosome 11 which…

Q: Based on the same data from the previous question:   cu  jv  se        31 +   +   se       99…

A: In Drosophila, curled wings (cu), javelin bristles (jv) and sepia eyes (se) are autosomal recessive…

Q: . A true-breeding strain of Virginia tobacco has dominantalleles determining leaf morphology (M),…

A: A gene is the physical and functional unit of heredity. A gene is a sequence of nucleotides in…

Q: In mice, gene A is epistatic to gene B. Dominant allele "A" allows for pigment to be transported to…

A: Epistasis is the type of gene interaction in which a gene masks or interferes in the expression of…

Q: Based on the information shown in the chart above, what is the most likely inheritance pattern for…

A: In autosomal traits, the characteristics are inherited through the autosomal chromosome. Individuals…

Q: Let’s suppose a gene exists as a functional wild-type allele and anonfunctional mutant allele. At…

A: Dominance is a phenomenon in which an individual has two allelic forms that expresses one over the…

Q: Researchers studying blind cave fish that lack eyes found that crossing two pure-bred fish from the…

A: Within the puzzling depths of caves, analysts have found fish that have adapted to their environment…

Q: Normal pigmentation dominates no pigmentation (albino). For an organism to exhibit color, it must…

A: So, the bull with the red heterozygous allele has one red allele and one for no color (albino).…

Q: Nanos is another maternal-effect gene in Drosophila that controls anterior/posterior axis formation.…

A: The trait being studied in Drosophila melanogaster is anterior and posterior axis formation. As it…

Q: Penile hypospadias, a birth defect in male humans in which the urethra opens on the shaft instead of…

A: Given, Penile hypospadias, is disease or a birth defect in male humans in which the urethra opens on…

Q: Dominant negative Incomplete dominance Epistasis Recessive lethal allele III E ||| A condition where…

A: Introduction :  The field of science known as genetics deals with the study of heredity, genetic…

Q: In Doodlewags (hypothetical creatures), the dominant allele S causes solid coat color; the recessive…

A: Genotype of the parents: Father: RrBbAa Mother: Rrbbaa  Reason: The father is yellow, but gives…

Q: In horses, the Overo gene, Ov, produces a white splotch pattern on the coat. The overo phenotype is…

A: The Overo gene (Ov) in horses produces a white splotch pattern on the coat when present in a single…

Q: A population of white leghorn chicken has the following dominant mutations: crested head, the…

A: Introduction :- For instance, Huntington's disease is caused by a dominant mutation, which means…

Q: Pigment of chicken feathers is regulated by two genes, the gene for feather pigment C, and a gene…

A: The Pigment of chicken feathers is regulated by two genes- C and I. C gene is for feather pigment ,…

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

A: Introduction :- Hypercholesterolemia is a medical condition characterized by high levels of…

Q: There are two genes that determine the coat colour expression in some dogs: eumelanin and merle.…

A: Given: There are two genes that determine the coat color expression in some dogs: eumelanin and…

Q: The dosage of X chromosome expression is equalized between male and female mammals.  Think about the…

A: Calico cats produce a fur coat exhibiting both orange and black colors. The coat color gene is…

Q: There are two genes that determine the coat colour expression in some dogs: eumelanin and merle.…

A: The E encodes black coat. And it is dominant over e allele. The ee encodes red coat color.  The MM…

Q: Consider the imaginary trait, bristles with split-ends, a trait hypothesized to be X-linked…

A: Introduction :- A dominant gene is carried on the X chromosome in a process known as X-linked…

Q: ASSESSMENT Answer the problem. You may use YELLOW PAPER Sex-Linked Inheritance In humans the genes…

A: Sex linked inheritance means that sex-specific patterns of the inheritance and also describes the…

Q: Red roan hair colour in some horses is due to codominance of the white allele and the red allele. If…

A: Codominance is a type of inheritance where both the alleles present in the gene pair are expressed.…

Q: a summary use your understanding of molecular biology to explain that recessive alleles are…

A: BASIC INFORMATION USED IN GENETICS HETEROZYGOUS - Every gene has two characters one being the…

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: Dihybrid Cross In black eyes are gray hair is dominant rabbits, dominant white hair. Also in…

A: A cross between two observed traits that are controlled by two different genes of two organisms is…

Q: Semen from a promising bull is going to be used for artificial insemination. However, the owner is…

A: Since 35% of the cows in the herd are homozygous dominant for the deadly gene and 65% are…

Q: Suppose there are four newly discovered genes, cach with two alleles, in humans that all follow a…

A: There are 4 types of genes . These genes have further two alleles in which ( + ) sign indicate…

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

A: ANSWER;- A). 1/16

Q: Shell coiling in snails results from a genetic maternal effect. An autsomal allele for a…

A: A dominant allele is an allele that expresses itself and a recessive allele is the one which…

Q: Which of the following statements are true regarding Mendel's observations of two factor crosses?…

A: Mendel is known as father of genetics. He studied the inheritance in peace plants. He said that…

Q: Which of these predictions would you make for a gene that is haplosufficient and essential for…

A: In haploinsufficiency (most genes), a solitary typical allele gives sufficient capability, so A+A−…

Q: What is the most likely inheritance pattern shown in image B, below? A KEY Homozygous Homozygous…

A: Inheritance pattern is a type of pattern which evaluates how traits are passed from parents…

Q: Coat color in labradors is determined by alleles of two unlinked genes, B and E. The coat colors…

A: In the given situation, the determination of coat colour in labradors is governed by two independent…

Q: . The trait represented in the following pedigree is expressed only in the males of the family. Is…

A: A pedigree is a pictorial representation which represents history of a family, essentially a tree…

Q: The difference between continuous and discontinuous variation.

A: In biology, variations are differences between two living organisms or groups of living organisms.…

Q: Is it possible to determine the genotype of an individual expressing a dominant phenotype? Provide…

A: Test cross When F2 progeny is crossed with recessive parent then it is called test cross. Test…

Q: me astigmatism and non-red hair are produced by a different pair of completely dominan genes. Hence,…

A: Let, A = allele for astigmatism, a = doesn't show astigmatism, B = allele for non-red hair, b =…

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…

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.