In guinea pigs, white coat (w) is recessive to black coat (W) and wavy hair (v)...
In guinea pigs, white coat (w) is recessive to black coat (W) and wavy hair (v) is recessive to straight hair (V). A breeder crosses a guinea pig that is homozygous for white coat and wavy hair with a guinea pig that is black with straight hair. The F1 are then crossed with guinea pigs having white coats and wavy hair in a series of testcrosses. The following progeny are produced from these testcrosses: (Hint: To test for independent assortment, we first test for equal segregation at each locus, then test whether the two loci sort independently. Finally, we test for independent assortment, where we expect 1:1:1:1 phenotypic ratios.) Show your work.
black straight 30
black wavy 10
white straight 12
white wavy 31
total 83
a. Are the genes that determine coat color and hair type assorting independently? Carry out chi-square tests for independence to test your hypothesis. In the first table, enter the correct observed values. In the second table, enter the expected values
observed values
| Ww | ww | row total | |
| Vv | |||
| vv | |||
|
83 total |
expected
| Ww | ww | ||
| Vv | |||
| vv | |||
| total 83 |
values
Homework Answers
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In guinea pigs, white coat (w) is recessive to black
coat (W) and wavy hair (v)...
In guinea pig, white coat (f) is recessive to black coat (F) and curly hair (h)...
In guinea pig, white coat (f) is recessive to black coat (F) and curly hair (h) is recessive to straight hair (H). A breeder crosses a guinea pig that is homozygous for white coat and curly hair with a guinea pig that is black with straight hair. The F1 are then crossed with guinea pig having white coat and curly hair in a series of testcrosses. The following progeny are produce from these testcrosses: white, curly 31 white, straight 12...
in guinea pigs, the allele for black coat is (B) is dominant over the allele for...
in guinea pigs, the allele for black coat is (B) is dominant over the allele for a white coat (b). at an independently assorting locus, an allele for rough coat (R) is dominant over the allele for smooth coat (r). a guinea pig that is homozygous for black color and rough coat is crossed with a guinea pig with a white, smooth coat. in a fears of matings, the F1 are crossed with guinea pigs having a white, smooth coat....
In guinea pigs black hair is dominant over white hair. You have several black guinea pigs...
In guinea pigs black hair is dominant over white hair. You have several black guinea pigs and several white guinea pigs. You wish to pick out a pair of pure black (homozygous) pigs. Explain how you would determine whether a black guinea pig was homozygous or heterozygous.
PP pelthy w guinea pigs rough hair (R) is domini respect to white (b. These gen...
PP pelthy w guinea pigs rough hair (R) is domini respect to white (b. These gen chromosome as the focus for hair haic texture and color. W ur (R) y dominant with respect to smooth hair (1), and black hair (B) is dominant with nese genes are not linked (.e., the locus for hair color is not on the same ocus for hair texture), nor are they sex-linked. Cross a guinea pig heterozygous for e and color, with a white-smooth-haired...
6. In guinea pigs, coat color can be white, cream or yellow. Of these three phenotypes,...
6. In guinea pigs, coat color can be white, cream or yellow. Of these three phenotypes, only the cream-colored guinea pigs never breed true. When two cream-colored guinea pigs are crossed, We are yellow, Y are cream and are white. A cream-colored guinea pig by white guinea cross yields / cream and white offspring. a. How many genes control coat color in the guinea pig? b. Give the mode of inheritance of coat color in the guinea pig. c. Why...
6. In guinea pigs, it is hypothesized that the allele L governs short hair and its...
6. In guinea pigs, it is hypothesized that the allele L governs short hair and its recessive allele / governs long hair. Codominant alleles at an independently assorting locus are hypothesized to govern hair color such that CC = yellow, CYCW = cream, and CWCW = white. From the cross LI CYCW X LI CYCw the following progeny were obtained: 50 short cream 21 short yellow 23 short white 21 long cream 7 long yellow 6 long white. Are the...
is In guinea pigs, black coat color (B) is dominant to white (b), and rough color...
is In guinea pigs, black coat color (B) is dominant to white (b), and rough color (R) dominant to smooth (o). What following crosses a) BBRR x bbrr b) BBrr x bbRR c) Bbrr x bbRr d) BBRr x BbRr e) BbRr x BbRr 2)The presence of one of the Rh antigens on the surface of the red blood cells (Rh+) in humans is produced by a dominant gene R. Th negative cells are produced by the recessive genotype rr....
that's all the professor give 3. In pigs, black hair (B) is dominant to red hair...
that's all the professor give
3. In pigs, black hair (B) is dominant to red hair (b). Erect ears (E) are dominant to drooping ears (e). What are the expected proportions of the different phenotypes resulting from a mating between two pigs heterozygous for both traits? SHOW A PUNNETT SQUARE 4. There are 2 colors in color squash, white & yellow. White (W) is dominant over yellow (w). What are the expected genotype and phenotype frequencies for each of the...
6. In tigers, a dominant allele (W) is responsible for the expression of the normal orange...
6. In tigers, a dominant allele (W) is responsible for the expression of the normal orange pigment. Individuals that inherit twe recessive alleles (w) lack the normal orange pigment in their fur, appearing white with black stripes. A pair of normally colored parewis produces a cub that is white with black stripes and scab that is orange with black stripes. What are the possible genotypes of the cube? b. What are the possible genotypes of the parents? 6. Explain your...
SPSS Lab Assignment #2 Output Analysis One Descriptives Depression_13 2323 WHITE BLACK AMER IND ASIAN HISPAN...
SPSS Lab Assignment #2 Output Analysis One Descriptives Depression_13 2323 WHITE BLACK AMER IND ASIAN HISPAN Mean 10.0010 10.0930 10.1038 10.1060 10.1062 10.0343 Std. Deviation 24975 27993 25361 27124 27267 26409 95% Confidence interval for Mean Std. ErrorLower Bound Upper Bound 00518 9.9908 10.0111 .00817 10.0770 10.1090 .03699 10.0294 10.1783 04952 10.0047 10.2073 .04158 10.0223 10.1901 00439 10.0257 10.0429 30 43 3617 Total ANOVA Depression 73 Mean Square Sum of Squares 7.230 244.967 1.808 26.651 Between Groups Within Groups Total...
In guinea pig, white coat (f) is recessive to black coat (F) and curly hair (h) is recessive to straight hair (H). A breeder crosses a guinea pig that is homozygous for white coat and curly hair with a guinea pig that is black with straight hair. The F1 are then crossed with guinea pig having white coat and curly hair in a series of testcrosses. The following progeny are produce from these testcrosses: white, curly 31 white, straight 12...
PP pelthy w guinea pigs rough hair (R) is domini respect to white (b. These gen chromosome as the focus for hair haic texture and color. W ur (R) y dominant with respect to smooth hair (1), and black hair (B) is dominant with nese genes are not linked (.e., the locus for hair color is not on the same ocus for hair texture), nor are they sex-linked. Cross a guinea pig heterozygous for e and color, with a white-smooth-haired...
6. In guinea pigs, coat color can be white, cream or yellow. Of these three phenotypes, only the cream-colored guinea pigs never breed true. When two cream-colored guinea pigs are crossed, We are yellow, Y are cream and are white. A cream-colored guinea pig by white guinea cross yields / cream and white offspring. a. How many genes control coat color in the guinea pig? b. Give the mode of inheritance of coat color in the guinea pig. c. Why...
6. In guinea pigs, it is hypothesized that the allele L governs short hair and its recessive allele / governs long hair. Codominant alleles at an independently assorting locus are hypothesized to govern hair color such that CC = yellow, CYCW = cream, and CWCW = white. From the cross LI CYCW X LI CYCw the following progeny were obtained: 50 short cream 21 short yellow 23 short white 21 long cream 7 long yellow 6 long white. Are the...
is In guinea pigs, black coat color (B) is dominant to white (b), and rough color (R) dominant to smooth (o). What following crosses a) BBRR x bbrr b) BBrr x bbRR c) Bbrr x bbRr d) BBRr x BbRr e) BbRr x BbRr 2)The presence of one of the Rh antigens on the surface of the red blood cells (Rh+) in humans is produced by a dominant gene R. Th negative cells are produced by the recessive genotype rr....
that's all the professor give
3. In pigs, black hair (B) is dominant to red hair (b). Erect ears (E) are dominant to drooping ears (e). What are the expected proportions of the different phenotypes resulting from a mating between two pigs heterozygous for both traits? SHOW A PUNNETT SQUARE 4. There are 2 colors in color squash, white & yellow. White (W) is dominant over yellow (w). What are the expected genotype and phenotype frequencies for each of the...
6. In tigers, a dominant allele (W) is responsible for the expression of the normal orange pigment. Individuals that inherit twe recessive alleles (w) lack the normal orange pigment in their fur, appearing white with black stripes. A pair of normally colored parewis produces a cub that is white with black stripes and scab that is orange with black stripes. What are the possible genotypes of the cube? b. What are the possible genotypes of the parents? 6. Explain your...
SPSS Lab Assignment #2 Output Analysis One Descriptives Depression_13 2323 WHITE BLACK AMER IND ASIAN HISPAN Mean 10.0010 10.0930 10.1038 10.1060 10.1062 10.0343 Std. Deviation 24975 27993 25361 27124 27267 26409 95% Confidence interval for Mean Std. ErrorLower Bound Upper Bound 00518 9.9908 10.0111 .00817 10.0770 10.1090 .03699 10.0294 10.1783 04952 10.0047 10.2073 .04158 10.0223 10.1901 00439 10.0257 10.0429 30 43 3617 Total ANOVA Depression 73 Mean Square Sum of Squares 7.230 244.967 1.808 26.651 Between Groups Within Groups Total...
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