8. An insect from a strain breeding true for white eyes (RRww) was crossed to aninsect from a strain breeding true for cream eye (rrWW). The F1s all had red eyes.o The Fls were intercrossed to produce an F2 generation that consisted of 175 red-eyed:62 cream:81 white eyed. A sqyT * O qyT (0 sqy x 0 sqyT (bi. Provide the genetics of inheritance of this trait.ii. Provide the genotypes for the F1s and F2s of this cross.boold B sqyt dirwydad a ot drid svag sqyt boold a sy diw mow A8 oyd zodio ad bas boold A sayt zad ono dist ori ed of misls nom tertib9. In wild sunflowers, populations occur that are either yellow flowers (wild type) orwhite flowers. One variety of true breeding white flowered plants was crossed toanother pure strain of white flowered plant. The resulting F1 progeny were yellowflowered plants. When the F1 progeny were intercrossed, the offspring were 56yellow flowered and 44 white flowered. From the results of these crosses, howmany genes control the flower color? Is any one gene epistatic to any other gene?VIE29091 10 Insimob a ot sub vladil som ei find ein TTololissit al intens stolqmos ei ololle eidignites (dar ni instiensq 25 ylno olidw state agogysomodpleubivibai erogysorted ow: il coilibnoo eurogy sorsted

Name: 8. An insect from a strain breeding true for white eyes (RRww) was cr
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: 8. An insect from a strain breeding true for white eyes (RRww) was crossed to aninsect from a strain breeding true for cream eye (rrWW). The F1s all had red eyes.o The Fls were intercrossed to produce an F2 generation that consisted of 175 red-eyed:

Note - We are supposed to answer one question According to our guidelines. Please repost other…

Science

Biology

8. An insect from a strain breeding true for white eyes (RRww) was crossed to an insect from a strain breeding true for cream eye (rrWW). The F1s all had red eyes. o The Fls were intercrossed to produce an F2 generation that consisted of 175 red- eyed:62 cream:81 white eyed. A sqyT x 0 sqyT ( 0 sql x 0 sqyT (b i. Provide the genetics of inheritance of this trait. ii. Provide the genotypes for the F1s and F2s of this cross. old payt dirwydad a of drid sveg egy boold &A qui diw mow A otmish mem fib

8. An insect from a strain breeding true for white eyes (RRww) was crossed to an insect from a strain breeding true for cream eye (rrWW). The F1s all had red eyes. o The Fls were intercrossed to produce an F2 generation that consisted of 175 red- eyed:62 cream:81 white eyed. A sqyT x 0 sqyT ( 0 sql x 0 sqyT (b i. Provide the genetics of inheritance of this trait. ii. Provide the genotypes for the F1s and F2s of this cross. old payt dirwydad a of drid sveg egy boold &A qui diw mow A otmish mem fib

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter9: Patterns Of Inheritance

Section: Chapter Questions

Problem 2FIO

See similar textbooks

Similar questions

Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are dominant to green (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares would you need to complete a Punnett square analysis of this cross?
. In common wheat, Triticum aestivum, kernel color is determined by multiply duplicated genes, each with an Rand an r allele. Any number of R alleles will give red, anda complete lack of R alleles will give the white phenotype.In one cross between a red pure line and a white pureline, the F2 was 6463 red and 641 white.a. How many R genes are segregating in this system?b. Show the genotypes of the parents, the F1, and the F2.c. Different F2 plants are backcrossed with the whiteparent. Give examples of genotypes that would give thefollowing progeny ratios in such backcrosses: (1) 1 red :1 white, (2) 3 red :1 white, (3) 7 red :1 white.d. What is the formula that generally relates thenumber of segregating genes to the proportion of redindividuals in the F2 in such systems?
1. An ebony strain of flies was discovered to be sensitive to carbon dioxide. Crossing a female sensitive strain with male resistant strain gave all sensitive offspring. The offspring of an F, female crossed with a resistant male were all sensitive. I make a reciprocal cross up to the F2 generation. Put your illustrations in the space provided below. Label the phenotypes of all individuals in the reciprocal cross. Adjust spacing, if necessary. Make sure that the complete cross(es) can fit the same page. Big blue circle Big pink circle Small half-blue-half-pink circle Small blue circle Small pink circle - male cytoplasm - female cytoplasm F, nucleus male nucleus -female nucleus
Albino rabbits (lacking pigment) are homozygous forthe recessive c allele (C allows pigment formation).Rabbits homozygous for the recessive b allele makebrown pigment, while those with at least one copy ofB make black pigment. True-breeding brown rabbitswere crossed to albinos, which were also BB. F1 rabbits, which were all black, were crossed to the doublerecessive (bb cc). The progeny obtained were 34black, 66 brown, and 100 albino.a. What phenotypic proportions would have beenexpected if the b and c loci were unlinked?b. How far apart are the two loci?
1. You are given a female F1 of unknown genotype. You cross the female fly to a homozygous male that has forked bristles and malformed eyes. The offspring of the cross is shown below: (Define symbols for your traits) Phenotype Forked bristles, normal eyes 752 Number Genotype Forked bristles, malformed 56 eyes Malformed eyes, normal bristles Normal eyes, normal bristles 820 64 a. What are the genotypes of the offspring? b. Based on the progeny, what were the genotypes of the F1 parents? What is the distance between for and mal?
3. In the test cross r/+ s/+ w/+ z/+ rswz/rswz, the following offspring are obtained: X Phenotype r st w+ z r stw z Number 359 47 4 rs w z+ rs w+z+ 98 rt st w z 92 r+ s w z+ 351 r+ st w+ z 6 r+s w+ z+ a) Construct a map of the genes showing their relative distance apart. 43 b) Is there any interference in this region? Note: the listed gene order is arbitrary. Can you deduce the proper order by inspection?
BIU E I = E E 11 Section 2: Codominance 3. In shorthorn cattle, coat color may be red, white, or roan. Roan is an intermediate phenotype expressed as a patches of red and patches of white hairs. The following data are obtained from various crosses: Red x red all red White x white all white Red x white all roan Roan x roan 25 % red, 50% roan, 25% white a. From these results, determine the appropriate allele symbols and indicate which genotypes lead to which phenotypes. b. What are the genotypes of the parents and offspring in each cross above? C. Predict the results of a red x roan cross. d. Predict the results of a white x roan cross. acer
A female hamster from a true-breeding big-eared strain was crossed to a male hamster from a true-breeding short-whiskered strain. Their offspring(F1) had normal ear size and whisker legnth. 1. One of the F1 males was crossed to a true-breeding big-eared, short-whiskered female. the following progeny were obtained. Are the loci regulating ear size and whisker lenght linked, and if so, what is the map distance between them? Normal ear, normal-whiskers 6 Big-eared, normal-whiskers 22 normal eared, short-whiskers 17 big-eared, shor-whiskers 5 2. Assume that the genes controlling ear size and whisker length are linked and have a map distance of 40cM. What would be the frequency of normal ear, short-whiskered hamsters among the progeny from a testcross of an F1 female? a. 0.4 b. 0.2 c. 0.3 d. 0.5 e. 0.1
O e. Parent 2: Parent 1: Parent 2: ¡Ai QUESTION 9 Bi QUESTION 8 Let's assume that, in dragons, red scales (B) are dominant to green scales (b), and long tongues (S) are dominant to short tongues (s). The genes that determine these characteristics assort independently. A homozygous red, long-tongued dragon is crossed with a homozygous green, short-tongued dragon. If an F1 dragon is crossed to a homozygous green and homozygous short-tongued dragon, what phenotypes and proportions are expected in the offspring? O a. 100% green and long-tongued O b. ½ green and short-tongued & ½ red and long-tongued O c. ½ red and short-tongued & ½ green and long-tongued O d.% red and long-tongued, % red and short-tongued, ½ green and long-tongued, % green and short-tongued O e. 9/16 red, long-tongued, 3/16 green, long-tongued, 3/16 red, short-tongued, 1/16 green, short-tongued Save and Submit to save and submit. Click Save All Answers to save all answers. 000 MacBook Air
Genetic Crosses that Involve 2 Traits In rabbits, black hair is dominant to brown hair. Also in rabbits, long straight ears are dominant to floppy ears. These letters represent the genotypes and phenotypes of the rabbits: BB = black hair EE = long ears Ee = long ears ee = floppy ears %3D %3D Bb = black hair bb = brown 1. A male rabbit with the genotype BBee is crossed with a female rabbit with the genotype bbEe The square Is set up below. Fill it out and determine the phenotypes and proportions in the offspring. How many out of 16 have black hair Ве Ве Ве Ве and long ears? bE How many out of 16 have black hair and floppy ears? be How many out of 16 have brown hair and long ears? bE How many out of 16 have brown hair be and floppy ears?
. A geneticist mapping the genes A, B, C, D, and E makestwo 3-point testcrosses. The first cross of pure lines isA/A ⋅ B/B ⋅ C/C ⋅ D/D ⋅ E/E × a/a ⋅ b/b ⋅ C/C ⋅ d/d ⋅ E/EThe geneticist crosses the F1 with a recessive tester andclassifies the progeny by the gametic contribution ofthe F1:A ⋅ B ⋅ C ⋅ D ⋅ E 316a ⋅ b ⋅ C ⋅ d ⋅ E 314A ⋅ B ⋅ C ⋅ d ⋅ E 31a ⋅ b ⋅ C ⋅ D ⋅ E 39A ⋅ b ⋅ C ⋅ d ⋅ E 130a ⋅ B ⋅ C ⋅ D ⋅ E 140A ⋅ b ⋅ C ⋅ D ⋅ E 17a ⋅ B ⋅ C ⋅ d ⋅ E 131000The second cross of pure lines is A/A • B/B • C/C • D/D •E/E × a/a • B/B • c/c • D/D • e/e.The geneticist crosses the F1 from this cross with arecessive tester and obtainsA ⋅ B ⋅ C ⋅ D ⋅ E 243a ⋅ B ⋅ c ⋅ D ⋅ e 237A ⋅ B ⋅ c ⋅ D ⋅ e 62a ⋅ B ⋅ C ⋅ D ⋅ E 58A ⋅ B ⋅ C ⋅ D ⋅ e 155a ⋅ B ⋅ c ⋅ D ⋅ E 165a ⋅ B ⋅ C ⋅ D ⋅ e 46A ⋅ B ⋅ c ⋅ D ⋅ E 341000The geneticist also knows that genes D and E assortindependently.a. Draw a map of these genes, showing distances inmap units wherever possible.b. Is there any evidence of interference?
. A true-breeding strain of Virginia tobacco has dominantalleles determining leaf morphology (M), leaf color(C), and leaf size (S). A Carolina strain is homozygousfor the recessive alleles of these three genes. Thesegenes are found on the same chromosome as follows:M C S6 m.u. 17 m.u.An F1 hybrid between the two strains is now backcrossedto the Carolina strain. Assuming no interference:a. What proportion of the backcross progeny willresemble the Virginia strain for all three traits?b. What proportion of the backcross progeny willresemble the Carolina strain for all three traits?c. What proportion of the backcross progeny will havethe leaf morphology and leaf size of the Virginiastrain but the leaf color of the Carolina strain?d. What proportion of the backcross progeny will havethe leaf morphology and leaf color of the Virginiastrain but the leaf size of the Carolina strain?