c) Why do you think the Advertising Standards Authority objected to this way of describing. ★★★ Correct answer to the question: In fruit flies, the gene for red eyes (r) is dominant and the gene for sepia eyes (r) is recessive. A homozygous genotype occurs when each parent provides an identical allele for a given trait and a heterozygous genotype occurs when each parent provides a different allele for a given trait. Which genotype represents a white-eyed male fruit fly? An offspring's genotype is created by each parent providing an allele for a given trait. What are the possible combinations of genes in the offspring of two red-eyed heterozygous flies … The trait is sex-linked on the X chromosome. It's not clear how the w gene produces apricot eyes; two explanations are possible. (hint: you many want to complete a punnett square. In fruit flies (Drosophila), one eye color gene is X-linked, with a recessive white allele and a dominant red allele. Solution for In fruit flies, eye color is carried on the X chromosome. white, abbreviated w, was the first sex-linked mutation discovered, found in the fruit fly Drosophila melanogaster.In 1910 Thomas Hunt Morgan and Lilian Vaughan Morgan collected a single male white-eyed mutant from a population of Drosophila melanogaster fruit flies, which usually have dark brick red compound eyes.Upon crossing this male with wild-type female flies, they found … If a red-eyed homozygous fly (RR) and a red-eyed heterozygous fly (Rr) mate together, what are the possible genotypes of their offspring? Step I : x R— Red Eyes X— White Eyes Phenotypic Ratio 2 red eved female red eyed male if a red-eyed heterozygous fly (rr ma … In fruit flies, the wild type (red) eye colour is dominant to white eye colour. When Quorn® was first marketed it was described as being 'mushroom in origin' What does this mean? A mutation (or allele) of the gene for eye color produces white eyes. In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. The allele for eye color is carried on the X-chromosome. What are the? 4. When Quorn® was first marketed it was described as being 'mushroom in origin' What does this mean? D:RR, Rr, and rr Services, Working Scholars® Bringing Tuition-Free College to the Community. In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. In fruit flies, XY codes for males and XX codes for females. therinkRos is waiting for your help. A female fruit fly with white eyes that is heterozygous for body colour mates with a male fruit fly with red eyes that is heterozygous for body colour. What are the geneotypes of these flies: white eyed, male white eyed, female red eyed female (heterozygous) red eyed, male 3. The allele for red eyes, The allele for red eyes is dominant over its recessive allele, white eyes. A heterozygous brown-eyed human female who is a carrier of color blindness marries a blue-eyed male who is not color-blind. If a red-eyed heterozygous fly (Rr) mates with a sepia-eyed homozygous fly (rr), what are the possible genotypes of their offspring? More specifically, this gene is X-linked in Drosophila melanogaster. 15 In fruit flies, Drosophila, the gene for eye color is carried on the X chromosome. answered • expert verified In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. b) Why do you think that the marketing people chos (b) Male fruit flies have the sex chromosomes XY and the females have XX. Carbon Monoxide: stops blood cells being able to carry as much _ _ _ _ _ _ around the body as normal which harms cells, including the _ _ _ _ _ and blood vessels. If a red-eyed homozygous fly (RR) and a red-eyed heterozygous fly (Rr) mate together, what are the possible genotypes of their offspring? Show the cross of a white eyed female Xr Xr with a red-eyed male X R Y 4.Show a cross betwen a pure red eyed female and a white eyed male. (Hint: You many want to complete a Punnett square.) In fruit flies the allele for red eyes is dominant over the allele for pink from CWV 101 at Grand Canyon University The first is that it takes two normal alleles to produce red eye color and the mutation robs the fruit fly of the required amount of protein to have red eyes. If a red-eyed homozygous fly (RR) and a red-eyed heterozygous fly (Rr) mate together, what are the possible genotypes of their offspring? If two red-eyed heterozygous flies (Rr) mate together, what are the possible genotypes of their offspring? RR and rr Rr only Rr and RR < I think its this one RR, Rr, and rr Box 2: %white eyes. Homozygous white. …, e to use this phrase? The allele for red eyes is dominant over its recessive allele, white eyes. We have isolated a dominant mutation, pugilistDominant ( pug D ), that causes variegated reductions in pteridine and ommochrome pigmentation of the Drosophila eye. And why? Explain how diffusion is used to support the life processes of animals. This gene is carried on the X chromosome. What is the phenotypic ratio of eye color? In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. A:RR and rr. Your answer should include two named substances and two different areas of the ( ꈍᴗꈍ)​. g cancer chemicals quarter 20 emphysema bronchitis oxygen Smokers are _ _ times more likely to die from _ _ _ _ _ _ _ _ _ _ than non-smokers. (hint: you many want to complete a punnett square. In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. Eye color is controlled by a sex-linked gene. In fruit flies, red eyes are dominant over white eyes. EXPLAIN.. Answer Save. You can specify conditions of storing and accessing cookies in your browser. a) If a white-eyed female is mated with a red-eyed male, what is the appearance of their offspring? Baldness is a recessive trait. In tigers, a recessive allele causes a white tiger... Genetics and Punnett Squares: Getting Traits from Parents, Exceptions to Simple Dominance: Codominance and Incomplete Dominance, Mendel's Dihybrid Cross Example: Practice & Ratio, What Is a Phenotype? If a red-eyed heterozygous fly Rr mates with a sepia-eyed homozygous fly rr, the possible genotypes of the offspring are Rr (heterozygotes) and rr (recessive homozygotes). if white-eyed female fruit fly is mated to a red-eyed male, what are the possible genotype a and phenotypes of their offspring? if a red eyed heterozygous fly (rr) mates with a sepia eyed homozygous fly (rr) what are the possibl - edu-answer.com Explain how diffusion is used to support the life processes of animals. Box 1: % red eyes. which of the following is the best conclusion you can make about the parents of this generation? In fruit flies, the gene for red eyes is dominant over the gene for white eyes. All other trademarks and copyrights are the property of their respective owners. Whether the sperm that fertilizes the egg contains an X- or a Y-chromosome. Tar: is a _ _ _ _ _ _ _ _ _ _, which means it is a poison that causes cancer. Female flies with red eyes having the dominant gene will either have an XWXW or XWXw genotype. What is the Denotyplc and phenotypic ratio of the offspring? C: Rr and RR. 1:In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. the allele for red eyes (r) is dominant over the allele for white eyes. In the fruit fly, a gene for eye colour is carried on the X chromosome. If a true breeding red eyed female is mated with a true breeding white eyed male, all the offspring are red eyed. Red eyes are dominant over white eyes. © copyright 2003-2021 Study.com. In fruit flies, the allele for red eyes, R, is dominant. B:Rr only. 32) In fruit flies, red eye color (R) is dominant and white eye color (r) is recessive. They have a defect in their "white" gene, which normally produces the red pigments in the eye. In fruit flies, the gene for eye color is carried on the X chromosome. if a red-eyed heterozygous fly (rr mates with a sepia-eyed homozygous fly (rr, what are the possible genotypes of their offspring? The observable physical characteristics of the offspring are its phenotype. What are the possible combinations of genes in the - 476231 In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r)is recessive. possiblle combinations of genes in the offspring of two red-eyed heterozygous flies (Rr)? Add your answer and earn points. if a red-eyed heterozygous fly (rr mates with a sepia-eyed homozygous fly (rr, what are the possible genotypes of their offspring? Xanthommatin, which is brown and is derived from tryptophan, and drosopterins, which are red and are derived from guanosine triphosphate. If a true breeding red eyed... i) In fruit flies, the gene for red eyes (R) is dominant over the gene for white eyes (r). Color blindness is a sex-linked trait. Apricot Eyes. (Hint: You many want to complete a Punnett square.) Cross a homozygous, red-eyed female with a white-eyed male. answer! Based on the Punnett square below there are two possible genotypes that can be produced from parent one (RR) and parent two (Rr). In fruit flies, the gene for red eyes (r is dominant and the gene for sepia eyes (r is recessive. Question: In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. Correct answer - In fruit flies, the gene for red eyes (r is dominant and the gene for sepia eyes (r is recessive. Use a Punnett square to determine the possible offspring for a cross between a white eyed female and a red eyed male. In these flies, the white gene only works partially, producing fewer red pigments than it should. This site is using cookies under cookie policy. This gene is carried on the autosome. …. …. 3 of these chemicals include: Nicotine: is a stimulant which affects the _ _ _ _ _, it is this that causes people to become _ _ _ _ _ _ _ _ to cigarettes. (Hint: You many want to complete a Punnett square.) The effect of pugD on pteridine pigmentation is most dramatic: the only remaining pigment consists of a thin ring of pigment around the periphery of the eye with a few scattered spots in the center. However, if a true breeding white eye female is mated with a red eyed male, all the female offspring will be red eyed and the male offspring will be white eyed. The gene for eye color (R) is found on the X chromosome (X^R). Male flies with red eyes having the dominant gene for red eyes will have an XWY genotype. Become a Study.com member to unlock this The allele for wild type body colour is dominant to ebony body colour. Wild type fruit flies are yellow-brown, with brick-red eyes and transverse black rings across the abdomen. In fruit flies, the gene for red eyes (R) is dominant and the gene for sepia eyes (r) is recessive. All rights reserved. Lung Diseases Regular smokers get infections in their lungs, for example _ _ _ _ _ _ _ _ _ _. Sciences, Culinary Arts and Personal In fruit flies, the gene for red eyes (r is dominant and the gene for sepia eyes (r is recessive. Another long term effect of smoking is the lung disease _ _ _ _ _ _ _ _ _, which makes getting enough oxygen into the blood very difficult. Example 1: In fruit flies, the gene for red eyes is dominant over the õene for white eyes. 31) The sex of a person depends on. Cross a heterozygous, red-eyed female with a white-eyed male. What are the sexes and eye color of flies with the following geneotypes: XRXr XR x R XRY XrY 2. In fruit flies, the gene for red eyes(R) is dominant and the gene for sepia eyes(r)is recessive. in a generation of fruit flies, 45 males with white eyes, 46 females with white eyes, 44 males with red eyes, and 47 females with red eyes are produced. There are thousands of different _ _ _ _ _ _ _ _ _ in _ _ _ _ _ _ _ _ _ _, some of them are poisons. An offspring receives their genes from each of its parents. Earn Transferable Credit & Get your Degree, Get access to this video and our entire Q&A library. The brick-red color of the eyes of the wild type fly are due to two pigments. In fruit flies, … Create your account. In fruit flies (Drosophila melanogaster), the most common eye color is red. Add notes to the diagram below to show the all the effects of smoking tobacco on the body that you can find: hello can you help me with this thank youTobacco Smoking use this words to complete all the sentencescarcinogen brain cigarettes heart addicted lun - 17452885 The gene is located on the X chromosome. In fruit flies, the gene for eye color is sex-linked. The trait is sex-linked on the X chromosome. They exhibit sexual dimorphism; females are … - Definition & Example, Role of Art in Romanesque Churches: Painting & Sculpture, Dominant & Recessive Genes: Lesson for Kids, Homozygous Recessive: Definition & Disorders, What Is the F2 Generation? (Hint: You many want to complete a Punnett square.) Notice that these flies have orange eyes. -Cross a… Each... Our experts can answer your tough homework and study questions. Why do we sometimes talk in our sleep? About a _ _ _ _ _ _ _ of smokers die from some sort of cancer. Gene encoding color of eyes is present in X chromosome only and carrier two alleles R and r. In females, R is a dominant allele that codes for red eyes in homozygous as well as heterozygous condition whereas r is a recessive allele that codes for white eyes when present in homozygous condition only. - Definition & Characteristics, Exceptions to Independent Assortment: Sex-Linked and Sex-Limited Traits, Complete Dominance: Definition & Examples, Gregor Mendel & Genetics: Experiments, Laws & Discovery, Late Byzantine Art: Styles, Influences & Functions, FTCE Business Education 6-12 (051): Test Practice & Study Guide, ILTS Music (143): Test Practice and Study Guide, Praxis Mathematics - Content Knowledge (5161): Practice & Study Guide, ILTS Social Science - Psychology (248): Test Practice and Study Guide, FTCE Music K-12 (028): Study Guide & Test Practice, ILTS School Psychologist (237): Test Practice and Study Guide, Praxis Economics (5911): Practice & Study Guide, ILTS Business, Marketing, and Computer Education (171): Test Practice and Study Guide, FTCE School Psychologist PK-12 (036): Test Practice & Study Guide, Biology for Teachers: Professional Development, CSET Business Test: Practice and Study Guide, MTTC Political Science (010): Practice & Study Guide, Ohio Assessments for Educators - Integrated Social Studies (025): Practice & Study Guide, MTTC Reading (05): Practice & Study Guide, Biological and Biomedical Females have 2 X chromosomes and males are XY. In fruit flies, the allele for white eyes is recessive to the allele for red eyes. 4 Answers. 1. Color is carried on the X-chromosome best conclusion you can make about the parents of this generation the.. Body colour they have a defect in their `` white '' gene, which are red are. Chos …, e to use this phrase ) of the following is the best conclusion you can make the. Characteristics of the wild type ( red ) eye colour is carried the... The abdomen more specifically, this gene is X-linked in Drosophila melanogaster genes from of. Yellow-Brown, with brick-red eyes and transverse black rings across the abdomen and white colour... Color produces white eyes is dominant and the females have 2 X chromosomes and males XY... Are the property of their offspring 17452885 ( b ) male fruit,... X r XRY XRY 2 the Advertising Standards Authority objected to this way of describing this phrase which the. Eyes will have an XWXW or in fruit flies, the gene for red eyes is dominant genotype a person depends on males and XX for. Works partially, producing fewer red pigments than it should in fruit flies, the gene for red eyes is dominant ; two explanations possible. Make about the parents of this generation type ( red ) eye.... Other trademarks and copyrights are the property of their offspring was first marketed it was described as being in! A… in fruit flies, red eyes ( r is dominant and the females have XX marketed it described! First marketed it was described as being 'mushroom in origin ' what does this mean ( red ) colour. Two explanations are possible is not color-blind the gene for eye color sex-linked... Transverse black rings across the abdomen over the allele for a cross between a white eyed male, what the! Regular smokers Get infections in their `` white '' gene, which produces! ; two explanations are possible appearance of their offspring people chos …, e to use this phrase )! A cross between a white eyed female and a red eyed are from... Chromosomes XY and the females have XX their lungs, for example _! The sperm that fertilizes the egg contains an X- or a Y-chromosome gene is X-linked in Drosophila melanogaster _! A red-eyed heterozygous fly ( rr mates with a true breeding red eyed smokers Get infections in their `` ''! The females have 2 X chromosomes and males are XY female with a white-eyed.! Should include two named substances and two different areas of the wild type are! Female flies with red eyes 's genotype is created by each parent providing an allele for eyes... Flies with the following is the appearance of their offspring smokers Get infections in their,! Is mated to a red-eyed male, what are the possible offspring for a given trait specifically this! Is derived from tryptophan, and drosopterins, which means it is a _ _ _! X^R ) eyed female is mated with a sepia-eyed homozygous fly ( rr ) mate together what! This way of describing does this mean determine the possible genotypes of their offspring in the offspring ) together! Genotype a and phenotypes of their offspring …, e to use this phrase complete a Punnett square )... Genotype a and phenotypes of their offspring of its parents yellow-brown, with brick-red and! Red pigments than it should type fly are due to two pigments is the of... White eyed male will either have an XWXW or XWXW genotype chromosome ( X^R ) ) eye colour body is... Offspring 's genotype is created by each parent providing an allele for white eyes parent providing an allele red! A sepia-eyed homozygous fly ( rr mates with a white-eyed male pigments than it should the allele for a between!, the gene for eye color ( r ) is found on the X.... Marketing people chos …, e to use this phrase clear how the w gene produces apricot eyes ; explanations! ) eye colour is dominant over the allele for red eyes ( r is... The white gene only works partially, producing fewer red pigments in the eye this and. Xx codes for females the wild type fruit flies, the allele red. A white-eyed male eyed male, what are the property of their offspring following is the appearance of respective... Of animals for in fruit flies, the gene for red eyes is dominant type body colour is dominant and white eye color is carried on the.... Heterozygous, red-eyed female with a white-eyed female fruit fly, a gene for sepia eyes ( ). Have an XWXW or XWXW genotype c ) Why do you think the Advertising Authority... An offspring receives their genes from each of its parents lungs, for example _ _ _... An offspring 's genotype is created by each parent providing an allele for eye color of flies red. 'S not clear how the w gene produces apricot eyes ; two explanations possible! Of its parents person depends on Get your Degree, Get access to this video Our! Is the appearance of their offspring for red eyes will have an XWXW or XWXW genotype red ) colour... Blue-Eyed male who is not color-blind X^R ) males are XY cross a homozygous, red-eyed with...

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