Which statement below defines epistasis? proportion of individuals with an abnormal genotype that exhibit its associated phenotype when a single gene affects several phenotypes when one gene influences or masks the effect of another gene when a heterozygote displays a phenotype intermediate between its two alleles
Q: The trait represented by the colored circles and squares below is inherited as a dominant allele.…
A: We are given with a pedigree of autosomal dominant allele and the shaded individuals are those which…
Q: Consider two genes. The first one is autosomal with dominant allele A and recessive allele a in the…
A: Inheritance is defined as the process in which hereditary characters are passed from the parents to…
Q: Which of the following describes that law of segregation. Each individual receives one copy of each…
A: For anybody studying biology or genetics, Mendel and his pea plants have given the basic concepts of…
Q: In a heterozygous state, being dominant implies that the dominant allele: has a chemical…
A: Alleles: Genes that occupy corresponding positions on homologous chromosomes and controls the same…
Q: Heterozygotes can transmit a recessive allele to their offspring but may not pheotypically carry the…
A: Heterozygote is defined as an individual having two different alleles of a particular gene and thus…
Q: What is the probability that the offspring of a homozygous dominant individual and a homozygous…
A:
Q: Define the following terms: monohybrid cross, self fertilisation, cross fertilisation, segregation,…
A: ALLELE- it is defined as the two alternating forms of a gene Monohybrid cross - A monohybrid cross…
Q: What is the definition of homozygous ? having two identical alleles for a gene…
A: Zygosity can be defined as the degree to which both copies of a chromosome can have the same genetic…
Q: Considering a common autosomal recessive trait: (Read each statement carefully. Select all of the…
A: Autosomal recessive: In this type the gene or condition is recessive type which means expressed in…
Q: For each gentype below indicate whether it is heterozygous (he)or homozygous (ho)
A: Each trait is encoded by a pair of genes, which are received from each parent. An allele is a…
Q: Brown eyes are dominant over blue eyes. Complete the punnett square for the following individuals:…
A: When two alleles in an inherited pair are heterozygous, according to Gregor Mendel's law, the two…
Q: Compare and contrast dominant alleles with recessivealleles and their relation to genotype and…
A: The alternate forms of a gene are called “Alleles”. These forms are mainly called dominant and…
Q: You have multiple genes that determine your hair color. What inheritance pattern is this an example…
A: The biochemical substance that is carried from the preceding generation to the succeeding generation…
Q: Match the following terms with their appropriate descriptor: 1. Example of a Trait Two Alleles 2.…
A: Genes are very complex and provide us with our genetic data that has the power to make various…
Q: ___________________ alleles are always expressed in the presence of another allele. recessive…
A: Alleles are two alternative forms of a gene. Alleles can be dominant or recessive. Dominant -…
Q: Is it possible to determine the genotype of an individual expressing a dominant phenotype? Provide…
A: We determine the unknown genotype of a dominant organism by crossing it with a homozygous recessive…
Q: Distinguish between the following genetic terms: A. gene and allele. B. Homozygous and heterozygous.…
A: Gene: It is a nucleotide arrangement of DNA example: ATCGATCG Alleles: Alternate forms of a trait,…
Q: Which of the following genotypes would indicate a homozygous dominant trait? O bb Bb BB
A: Phenotypic traits are observable expression which can be dominant or recessive according to the…
Q: Example: Eye shape Almond-shaped eyes (A) are dominant to round eyes (a). One parent is homozygous…
A: Homozygous and heterozygous are used to describe allele pairs. Homozygous means that the parent…
Q: A single phenotypic character is affected by two or more genes, what is this called?…
A: before addressing the question, let's understand how each of these genetic inheritance patterns…
Q: State at least three reasons why a person’s phenotype can’t always be determined from the genotype.
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: A woman afflicted with a certain illness marries a normal man. They have four children (two boys and…
A: Pedigree is a chart represents family tree which displays members of a family who are affected by…
Q: Match each individual on the left with the correct genotype on the right. (not all categories need…
A: Pedigree charts are used to map the genetic inheritance from parent to offspring, of a particular…
Q: Brown eyes are dominant over blue eyes. This is NOTA sex-linked trait. Cross a brown-eyed colorblind…
A: Dihybrid cross takes into account two genes.
Q: What percent of offspring will exhibit albinism if the genotypic ratio is 2:2:0. (For your answer…
A: Dominant genes are those genes which express itself more strongly and is dominant over the recessive…
Q: The phenotypes and genotypes that result from a cross of Aa and aa (A = normal pigmentation and a =…
A: Albinism is a category of hereditary disease in which the body produces little or no melanin. Skin…
Q: If a gene shows classic dominance (one allele is dominant, one is allele is recessive), what is the…
A: Dominant trait in genetics is the one that has the capability of masking the effect of the recessive…
Q: If an individual manifests a physical trait that is considered recessive this means that their…
A: Gene: A part of an organism’s DNA that is passed down from its parents and codes for a specific…
Q: If both parents have the dominant phenotype, which genotypes are possible for their offspring?…
A: We know that both parents have dominant phenotype but we don't know if that is due to homozygous…
Q: Consider two genes. The first one is autosomal with dominant allele A and recessive allele a in the…
A: Given, there are two genes. 1. Autosomal with allele A being dominant and a being recessive. 2. X…
Q: A heterozygous fair male had a conjugal interaction with a homozygous dark female. Using an…
A: The variations of a particular gene are called alleles. In a diploid organism there are two alleles…
Q: nich statement below defines epistasis? when a single gene affects several phenotypes when a…
A: When one gene influences or masks the effects of another gene. The phenomenon is called as…
Q: ____traits are impacted by the function of multiple genes, whereas pleiotropic genes impact multiple…
A: A trait is the specific characteristic of an organism. Traits can be determined by the genes or the…
Q: Which statement describe a dominant trait? S2 and S3 are correct S2 - gene that is not expressed in…
A: Introduction Genes are the functional unit heredity. Gene controls all the characters of a living…
Q: Below is a simplified chart for polygenic trait of eye colour. The amount of melanin in the iris is…
A: Eye color is determined by multiple genes: Polygenic trait. Eye color is determined by the amount of…
Q: Describe how different alleles produce different phenotypes
A: A variable form of a gene is known as an allele. Some genes exist in several distinct versions, all…
Q: genotypes of parents
A: Answer :
Q: A child could have the same blood type as one of his/her parents but it doesn’t always happen that…
A: It does not happen always for example parents with AB and O blood groups would have blood groups of…
Q: Carrier? (Yes or No) Has the Trait? (Yes or No) Male or Female Phenotype or Appearance of the…
A: Inheritance is the process of the transfer of genetic information from one generation to another…
Q: What proportion of the F2 individuals would you expect to be homozygous following a dihybrid cross?…
A: A genetic cross that includes two pairs of different and contrasting characters is called the…
Q: As the age of an individual increases, which of the following phenomenon has greater chance of…
A: Heredity as we know is the passing on of traits from parents onto their offsprings. Organisms that…
Q: An F2 ratio of 12:3:1 is most characteristic of a genetic interaction involving? 1) two gene loci…
A: When two or more non-allelic gene influence the outcome of a single trait, this is known as gene…
Q: A dominant gene that codes for white hair is represented by the symbol W. If a parent with the…
A: The dominant trait is the one that first appears or is visibly seen in organism. Even if only one…
Q: FILL IN THE BLANK: Drag and Drop the correct flower color for the Phenotype Homozygous Dominant An…
A: Genes act as the carriers of information which helps in determining the trait of organisms.Alleles…
Q: have
A: ANSWER. A. 25% ( One in four) Both parents are heterozygous for the trait so there is 25% chance (…
Q: If an organism that is homozygous dominant is crossed with a heterozygote for that trait, the…
A: Hello, thank you for your question, since your question already has an answer written I am just…
Q: Which of the following is the correct pairing of phenotype and genotype of Individual 5 in the…
A: ANSWER;- A)Dwarf, Homozygous dominant Explain;- A cross between two homozygous assortments generally…
Q: The concept that traits in parents are mixed together to form an intermediate condition in their…
A: Answer : Option (2) is correct. - blending inheritance.
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- Pseudohypertrophic muscular dystrophy is an inheriteddisorder that causes gradual deterioration of the muscles. It isseen almost exclusively in boys born to apparently unaffectedparents and usually results in death in the early teens. Isthis disorder caused by a dominant or a recessive allele?Is its inheritance sex-linked or autosomal? How do youknow? Explain why this disorder is almost never seen in girls.The part that is missing is where the traits for things like colorblindness and hemophilia exist. This meansthat if you have XY chromosomes, you are missing alleles on one of the chromosomes. So whatever alleleis on your X is expressed regardless of if being dominant or recessive. These X-Linked Traits have a specialway to note the alleles.X-Linked alleles use X and Y as their base and then the allele that notates the trait is in the top, rightcorner. For instance: Phenotype(appearance) Genotype(alleles) XY with Hemophilia XhY XX withouth Hemophilia XHXh Notice that the female has two X’s so has 2 alleles. She is not a hemophiliac, but is carrying the trait.That means she can pass the trait to her offspring.Why don’t you cross those two parents here and find the outcome:Parents: Offspring: Genotypes:Phenotypes: Is there a chance of producing an XY offspring with hemophilia? Explain your answer Will…The X-linked gene responsible for DMD encodes a protein called dystrophin that is required for muscle function. Dystrophin protein is not secreted—it remains inthe cells that produce it. Given what you know aboutBarr body formation, do you think that females heterozygous for the recessive DMD disease allele could havethe disease in some parts of their bodies and not others?
- All of the following statements aboutinheritance are true, except one. Which one of the following statements is INCORRECT ? O All genes have two alleles: one dominant and one recessive. Some phenotypes arise from the interaction of more than one gene. O Incomplete dominance is when heterozygotes express a phenotype that appears to be a blend between the phenotypes of homozygotes. O Even If you know the genotypes of both parents, you cannot always know with certainty the genotype their child will have.What explains how the parents in a family both have the same eye color, but some of their children have a different eye color? Assume for this example that eye color is determined by a single gene. ● One parent is homozygous dominant, and the other homozygous recessive for a gene that controls eye color allowing some of the children to express a different trait. O The parents are both heterozygous for a gene that controls eye color allowing some of the children to get two recessive alleles. O The parents are both homozygous dominant for a gene that controls eye color allowing some of the children to get two recessive alleles. O One parent is homozygous dominant, and the other heterozygous for a gene that controls eye color allowing some of the children to express a different trait.TTGG ttgg F1 TG tg F2 TtGg Which types of genotypes are represented in F1 and F2 in the above figure, respectively? heterozygous and heterozygous heterozygous and homozygous homozygous and heterozygous homozygous and homozygous
- If a gene shows classic dominance (one allele is dominant, one is allele is recessive), what is the phenotype of a heterozygote? O Recessive phenotype O Unable to determine without more information Mixed phenotype O Dominant phenotypeAlbinism is a recessive autosomal trait for skin pigmentation. Hemophilia is a sex-linked recessivedisorder of the blood. assign alleles to the traitsA – normal skin pigmentation X H – normal blooda – albino X h - hemophilia A double heterozygous woman marries a non-hemophilic man and heterozygous for skinpigmentation. Double heterozygous means heterozygous for both traits. Aa for skin pigmentation andX H X h for blood trait. Therefore, the genotype of the woman is AaX H X h . Non-hemophilic man is X H Y and heterozygous for skin pigmentation is Aa. The genotype,therefore, of the man is AaX H Y. What is the probability that they will have:a. a child with normal skin? _____________________b. a child with normal blood? _____________________c. an albino girl? _____________________d. A hemophilic boy? _____________________What mode of inheritance does dark blue skin color in Gunguns show? The Ankura race of Gunguns on the planet Naboo have a an inherited genetic disorder which results in afiete ididuas haveing dark blue skin color.The pedigree belowis from anafected faniy Gunguns are dpid wih females being homoazygous and males being hemizygous. Answer questions 3-6 based on the pedigre below: 2 3 9 10 00 5 6 89 1 12 13 14
- In rabbits, fur colour can be either grey, black or blotchy. Blotchy is present as grey and black spotspresent in no specific pattern. Males are almost always either grey or black, while females can begrey, black or blotchy. However, a male individual is found that shows the blotchy pattern, and youexpect a non-disjunction event might be to blame. Explain the inheritance of coat colour in rabbits,and also provide an explanation for the blotchy male.If a genotype has two identical alleles that are always expressed, how would it be described as? O Homozygous recessive O Heterozygous O Nullizygous O Homozygous dominantHuntington’s disease, is an incurable neurodegenerative genetic disorder that affectsmuscle coordination and some cognitive functions, typically becoming noticeable inmiddle age. It results from an autosomal dominant gene (H) and there are no carriers ofthe disease. Two parents with Huntington’s disease have an affected child. What is theprobability that their next child will be an unaffected girl if they are not double-dominant?
