You were given 1000 fruit flies to start a new laboratory colony. Before starting to breed your fruitflies, you decided to determine their genetic make up. You counted approximately 360 fruit flies thathave vestigial wings, a recessive trait.How many flies are homozygous dominant?O 640О 320O 240О 160O 400 You were given 1000 fruit flies to start a new laboratory colony. Before starting to breed your fruitflies, you decided to determine their genetic make up. You counted approximately 360 fruit flies thathave vestigial wings, a recessive trait.What is the frequency of the fruit flies that are carriers for the vestigial allele but have normalwings?O 0.48O 0.16O 0.52O 0.64O 0.46

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Description: You were given 1000 fruit flies to start a new laboratory colony. Before starting to breed your fruitflies, you decided to determine their genetic make up. You counted approximately 360 fruit flies thathave vestigial wings, a recessive trait.How man

Frequency of recombination = (Number of recombinant /total number of progeny ) * 100 Homozygous…

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You were given flies, you decided to determine their genetic make up. You counted approximately 360 fruit flies tha ruit flies to start a new laboratory colony. Before starting to breed your fruit have vestigial wings, a recessive trait. How many flies are homozygous dominant? O 640 О 320 О 240 О 160 O 400

You were given flies, you decided to determine their genetic make up. You counted approximately 360 fruit flies tha ruit flies to start a new laboratory colony. Before starting to breed your fruit have vestigial wings, a recessive trait. How many flies are homozygous dominant? O 640 О 320 О 240 О 160 O 400

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 1VCQ: Figure 12.5 In pea plants, round peas (R) are dominant to wrinkled peas (r). You do a test cross...

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You were given 1000 fruit flies to start a new laboratory colony. Before starting to breed your fruit flies, you decided to determine their genetic make up. You counted approximately 360 fruit flies that have vestigial wings, a recessive trait. How many flies are homozygous dominant? O 640 О 320 O 240 О 160 O 400
Figure 8.9 In pea plants, round peas (R) are dominant to wrinkled peas (r). You do a test cross between a pea plant with wrinkled peas (genotype rr) and a plant of unknown genotype that has round peas. You end up with three plants, all which have round peas. From this data, can you tell if the parent plant is homozygous dominant or heterozygous?
Part 2: Data Tables Table 1: Parent Genotypes: Monohybrid Crosses Generation Genotype of Individual #1 Genotype of Individual #2 P Yy Ss P1 Yy Ss P2 Yy ss P3 Yy SS P4 YY SS Table 2: Generation Data Produced by Monohybrid Crosses Generation Possible Offspring Genotypes Possible Offspring Phenotypes Genotype Ratio Phenotype Ratio P yySs P1 yySs P2 Yyss P3 YySS P4 YYSS Part 2: Post-Lab Questions How much genotypic variation do you find in the randomly picked parents of your crosses? How much in the offspring? Pool all of the offspring from your five replicates. How much phenotypic variation do you find? Is the ratio of observed phenotypes the same as the ratio of predicted phenotypes? Why or why not? What is the difference between genes and alleles? How might protein synthesis execute differently if a mutation occurs?…
Name 10 The diagram below shows the results of crossing a pea plant with smooth seeds and a pea plant with wrinkled seeds. Parent 1 Parent 2 Offspring 1 Offspring 2 Offspring 3 Offspring 4 What can be determined from the results of the experiment? F Smooth shape and wrinkled shape are both recessive traits. G Smooth shape and wrinkled shape are both dominant traits. H Smooth shape is a dominant trait, and wrinkled shape is a recessive trait. I Smooth shape is a recessive trait, and wrinkled shape is a dominant trait.
Table 5. Composition of F1 generation (Character Wild ΤΟΤΑL number 66 Phenotype Male Female Dominant trait Wild Type 37 29 Recessive trait Tetrapter 9. 9. 18 1. Based on the data shown in Table 5, is it possible to determine the genotypes of all flies showing the dominant trait? Why or why not? 2. Is it possible to determine the genotypes of all flies showing the recessive trait? Why or why not?
Table 14. Crossing Fl individual with another Fl individual Individual # 213 252 Gender Male Female Wild Type Wings Wild Type Antenna Aristapedia Wings Wild Type Antenna Phenotype Table 15. Composition of F2 generation Character 1: No. of Males No. of ΤΟΤAL Females number Wing Veins Antennae Cleft Cleft Wild Type Wild Type Aristapedia 16 12 Wild Type 9 11 1 10 Aristapedia 11 22 Wild Type 13 15 28 1. Does a trait always go together with another trait in one individual? Yes or No? If yes, identify the traits that go together. If no, explain why not? 2. Based on the data in Table 15, what are the possible genotypes of the FI individuals thal you crossed (see Table 14)? Male parent: Female parent: Phenotypes
APOE Allelic frequency Control EOAD LOAD Vascular disease e4 0.07 0.28 0.35 0.12 e3 0.88 0.70 0.63 0.87 What group is used as a control here? Based on this data, do you think APOE e4 allele increases one’s chance to develop EOAD or LOAD? Defend your answer. Your answer has to refer to the specific data in the table. Suppose that you want to improve this case control study by controlling one more variable that is a known risk factor for Alzheimer’s disease, how will you design your groups? Specify the risk factor you want to control and how you plan to control it.
In Question 10p of Chapter 4, the genotype of parents of litters with the following phenotypes was determined as "Bbdd x bbDd." How was this phenotype determined based on the genotype: a. ) 4 brown, 4 black, 4 yellow and 4 cream 4 brown (4 B_D_) , 4 black (4 B_dd), 4 yellow (4 bbD_), 4 cream (4 bbdd) Hoping to get feedback in the shortest possible time.
I 2. In frost moths, two alleles of one gene determine the character difference of spotted versus striped wings and two alleles of a separate, independent gene determine the character difference of orange wing background versus white wing background. The results for four matings of moth phenotypes are shown below. [Yes - it's possible for the same phenotypes to have different genotypes]. Mating Parental Phenotypes 1 2 3 4 spotted/white x striped/orange spotted/white x striped/orange spotted/orange x striped/ white spotted/orange x striped/orange Spotted/ orange 122 812 422 623 Number of progeny Spotted/ Striped / white orange 131 128 0 430 0 637 a. Determine which alleles are dominant and assign a letter to each. Striped / white 133 0 0 0 b. What are the genotypes of each parent in each cross? If more than one genotype is possible, list the alternative possibilities.
Pa × PP Dd 6/6 - Long beak Short beak 7. What percentage of the offspring will have a homozygous dominant genotype? 8. What will be the ratio of long beaks to short beaks in the offspring? LI x 11 9. What percentage of the offspring will White flowers Purple flowers have purple flowers as their phenotype? 10. What percentage of the offspring will have a heterozygous genotype? pp х x PP 11. What percentage of the offspring will Dark eyes Dark eyes have a heterozygous genotype?
In the following cross, +s +a X +s +a, how many offspring do you expect to have sepia eyes and apterous wings? O a. 3/16 b. 9/16 c. 1/16 d. 3/4
EE = floppy ears Ee = floppy ears bb = brown fur ee = pointed ears BB = black fur %3D Bb = black fur %D %3D 1. A female dog with the genotype BBee is crossed with a male dog with the genotype bbEe The square is set up below. Fill it out and determine the phenotypes and proportions in the offspring. Ве Ве Ве Ве bE BbEe BbEe How many out of 16 have: black fur and floppy ears? be Bbee Bbee Bbee Bbee black fur and pointed ears? brown fur and floppy ears? bE BbEe BbEe BbEe brown fur and pointed ears? be Bbee Bbee Bbee Bbee .. ... 2. Show the cross: bbEe x BbEe How many out of 16 have: black fur and floppy ears? black fur and pointed ears? I floppy ears? own brown fur and pointed ears?