nich statement below defines epistasis? when a single gene affects several phenotypes when a heterozygote displays a phenotype intermediate between its two alleles a measurement of phenotype intensity when one gene influences or masks the effect of another gene
Q: Plant height is controlled by 5 gene pairs. The homozygous dominant is 200 cm tall while the…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. If you need help with other sub…
Q: b. Dihybrid Genotype ratio cross between 2 heterozygous individuals (AaBb x AaBb) Phenotype ratio
A: Mendelian genetic follows complete dominance and no linkage, hence the cross has been given…
Q: Height of the people is controlled by several pairs of genes, which interact by type of polymeria…
A: Height and other similar features are controlled not just by one gene, but rather, by multiple…
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: Tallness (T) is dominant to shortness (t) in pea plants. Draw a punnett square cross between a…
A: PUNNET square is a square diagram to illustrate or find the genotype or phenotype of a particular…
Q: What inheritance pattern results from alleles with incomplete dominance? There is a range of…
A: The alleles are the alternative forms of a gene that are located on the same locas of a homologous…
Q: In tomato, the purple color of the stem is determined by an autosomal dominant "A" allele. The…
A: Given Allele for purple colour = A (dominant) Allele for green colour = a (recessive) Allele for…
Q: A. Identify the most likely pattern of inheritance (Dominant, Recessive, Sex-linked) (colored shapes…
A: Inheritance is a mechanism in which traits of the parents transfer into the offspring of the next…
Q: ea plants produce different colored flowers, with purple flowers a dominant trait and white flowers…
A: Based on monohybrid cross Mendel proposed law of dominance and law of segregation and based on…
Q: Two traits are considered linked (linkage disequilibrium) if [Select] [ Select ] the individual is…
A: Gene is considered the basic unit of heredity and it is the sequence of nucleotides in DNA or RNA…
Q: In rabbits, black is due to a dominant gene, brown color is recessive. Short hair is dominant and…
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: a gold re white o sets of the possible genotypes of the parental and the resulting F1 fish by…
A: In genetics, the cross which includes only one trait is called a monohybrid cross. The cross between…
Q: Many of the color varieties of summer squash are determined by several interacting loci: AA or aa…
A: The dominant epistasis is found in summer squash. Here A gene is showing the dominant epistasis over…
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: A heterozygous tall yellow plant is crossed with a homozygous short green. What will be the and…
A: Given: Heterozygous tall plant crossed with homozygous short green plant. Therefore, Tall plant (T)…
Q: A sample of 400 individuals is found to contain: 32 A1A1: 36 A1 A2 : 60 A1A3 57 A2A2 : 90 A2A3 : 125…
A: Selfing involves the fusion of gametes obtained from individuals having the same genotype. It is…
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: The human traits described above are said to be controlled by a single gene. Using the character…
A: Ear lobe is a trait which is determined by two Alleles :- E allele and e allele . A) In this , E is…
Q: Which statement below defines epistasis? proportion of individuals with an abnormal genotype that…
A: Inheritance of traits in organisms occurs by passing discrete heritable units(genes) from parents…
Q: Genes A and B are located 14 map units (centiMorgans) apart on the X chromosome. Given the following…
A: Inheritance or heredity is passing-on one trait from the parents to the progeny by either asexual or…
Q: A graph of phenotypic variation similar to this image is indicative of __ (ex: height, weight, eye…
A: BASIC INFORMATION POLYGENIC INHERITENCE as the name suggests it is controlled by more than one…
Q: Punnett Squares Complete the Punnett Square. Find probability of each phenotype in the offspring. Nn…
A: From the monohybrid cross, Mendel’s law of segregation was given. According to this law, when two…
Q: Alleles that are are expressed and mask expression of other alleles are known as with a capital…
A: In organisms that sexually reproduce, each individual organism receives two sets of chromosomes, one…
Q: Penetrance and expressivity are related but can be distinguished easily because:
A: Answer: PENETRANCE = It is the expression of a particular phenotype , which corresponds to a…
Q: hat ratio of phenotypes do you expect in the offspring? phenotype of f1 progeny : BbWw f1…
A: The phenotypic and genotypic ratio clearly explains the nature of inheritance. IT is studied under…
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: Penetrance is the number of individuals with a genotype who manifest a distinct phenotype -> True…
A: "Genetics" is the study of the functioning and main codes of variation and heredity. Inheritance is…
Q: If two alleles of a gene are codominant, and an individual that is homozygous for one allele is…
A: Let P and p are two alleles. These two alleles are Codominant to each other.
Q: Match the following words with their definitions. + Chromosomes + Recessive trait Linked genes +…
A: Each definition of the words with explanation is discussed in step 2.
Q: 5. Brown eye color is an example of a while heterozygous is an example of a 1. Genotype; phenotype…
A: The segment of DNA that can produce a polypeptide is called gene. It is an inherited factor that…
Q: How can each of the following be used in determiningthe role of genetic and/or environmental factors…
A: The genes are the components of the genome that direct specific functions in the cell. Their…
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: Incomplete penetrance can make autosomal dominant traits skip generations within a family tree. True…
A: Dominant trait The trait which is shown by individuals in both homozygous dominant and heterozygous…
Q: Parent one's genotype for a trait is Bb Parent two's genotype for a trait is Bb. What are the…
A: Dear student Answer:-Parents ones gamete can be Either BB or bb Parents two’s gamete’s can be…
Q: Practice a Punnet square for each of the following autosomal combinations. Assume incomplete…
A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…
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: Which of the following is used to identify the chromosomal region(s) associated a continuous trait?…
A: The chromosomal region associated with a particular trait is the gene or a particular segment of…
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: A heterozygous tall yellow plant is crossed with a homozygous short green. What will be the…
A: The genotype of an organism is its complete set of genetic material. The phenotype is the set of…
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: In pea plants, green pods (G) are dominant to yellow pods (g). The square below shows a cross…
A: The two alleles of any gene are segregated during the formation of gametes. Thus the green-pod…
Q: IIn pea plants, yellow peas (Y) are dominant and green peas are recessive, smooth peas (S) are…
A: The Punnett square is a diagram that is used to predict an outcome of a particular cross or breeding…
Q: For each phenotype below, list the genotypes (remember to use the letter of the dominant trait)…
A: The term "phenotype" refers to an organism's observable physical properties, such as its appearance,…
Q: Styles The shapes and colors of radishes are controlled by two independent pairs of genes that show…
A: An allele is known to be the variant form of a gene. A few genes exhibit a variety of different…
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: A. With reference fo the activity, write the expected number of genotypic combinations for offspring…
A: If T is the allele for Tallness andt is the allele for shortness and given that both parents are…
Q: With complete dominance, one allele conceals the phenotype effect of another gene, while with…
A: Complete dominance is a condition where one allele (Dominant allele) totally masked the phenotype of…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 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.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.In individuals affected by cystic fibrosis, salt crystals may appear afterperspiration dries up. In addition, the disease causes respiratory disorderswhich can be both debilitating and lethal. It occurs in individuals homozygousfor recessive gene. If 2 normal parents had a daughter with the symptoms ofthis disease, and a normal son, what is the probability that he might be acarrier of the recessive gene?Express answer in fraction form.
- A sex-influenced trait is dominant in males of a certain speciesof animal and causes bushy tails. The same trait is recessive infemales. Fur color is not sex-influenced.Yellow fur is dominantto white fur. A true-breeding female with a bushy tail and yellowfur was crossed to a white male without a bushy tail (i.e., a normaltail). The F1 females were then crossed to white males withoutbushy tails. The following results were obtained: A. Conduct a chi square test to determine if these two genes arelinked.B. If the genes are linked, calculate the map distance betweenthem. Explain which data you used in your calculation.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 homozygousIn 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.
- The coat colour of some dogs is an example of an epistatic interaction. The common alleles are black (B) and brown (b). There is a separate gene on a separate chromosome that influences coat colour; it prevents colour formation and causes a white coat. L = prevents color formation and causes a white coatl = allows colour formation to occur.If a white dog heterozygous for both traits is crossed with a black dog that is heterozygous for the color gene, which of the following represents the phenotypes of the offspring? Select one:Normal pigmentation dominates no pigmentation (albino). For an organism to exhibit color, it must have an allele for normal pigment production as well as alleles for a specific color. In cattle, red color dominates black color. An albino bull that has a heterozygous genotype for red is crossed with a red cow. The cow is heterozygous for normal pigment production and for red coloring. What types of offspring will they produce, and what is the probability of producing these types of offspring? Show your work.Eye Color is a trait that involves a number of genes. To simplify our example, we can break down the traitinto two phenotypes: dark color and light color eyes. Dark coloration is considered dominant, or isexpressed in a heterozygous condition (when the alleles are different).Q: If you have one light eyed parent and one parent that is homozygous for dark eye color, what are thepotential eye colors of their offspring (young)? To start, what do the Parents’ alleles look like? What istheir Genotype? (Remember, you pick which letter you want to use)Light eye colored parent:Dark eye colored parent:One of the things Mendel designed was a way to provide information about how the genes are passed onfrom parent to offspring. He designed something called a Punnett Square. This square places the parents’alleles outside the box, then uses those alleles to fill in the squares.Let’s start with a reminder of what we know about the parents: Parent Phenotype(appearance) Genotype(alleles) 1 2
- What is epistasis? a gene at one locus alters the phenotypic expression of a gene at a second locus having multiple phenotypic effects when two alleles both affect the phenotype in separate distinguishable ways a cross between an individual with an unknown genotype and a homozygous recessive individualAlbinism 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? _____________________The production of eye-color pigment in Drosophila requires the dominant allele A. The dominant allele P of asecond independent gene turns the pigment to purple,but its recessive allele leaves it red. A fly producing nopigment has white eyes. Two pure lines were crossedwith the following results:P red-eyed female white-eyed maleF1 purple-eyed femalesred-eyed malesF1 F1purple eyed 38red eyed 38white eyed 28F both males and females: 2Explain this mode of inheritance, and show the genotypesof the parents, the F1, and the F2.
