Black (B) color in guinea pigs is dominant to white (b). A female from a pure...
Black (B) color in guinea pigs is dominant to white (b). A female from a pure breeding black strain is crossed with a male from a pure breeding white strain what is the parental cross using a Punnett square
Homework Answers
Parents BB(black colr) X bb(white color)
(Female) X (Male)
Gametes B b
F1 generation Bb
F2 generation Bb X Bb
B b
B BB Bb
b Bb bb
F2 genotype: BB: Bb: bb= 1:2:1
F2 phenotype: Black: White= 3: 1
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Black (B) color in guinea pigs is dominant to white (b). A
female from a pure...
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.
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 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...
In a cross between a black and a white guinea pig, all members of the F1...
In a cross between a black and a white guinea pig, all members of the F1 generation are black. The F2 generation is made up of approximately 3/4 black and 1/4 white guinea pigs. A. Based on this cross, which trait is dominant and which is recessive? What information lead you to your conclusion? B. Diagram this cross, showing the genotypes and phenotypes of parental, F1 and F2 generations. C. What will the offspring be like if two F2 generation...
1. You just bought two black guinea pigs, one male and one female, of the same...
1. You just bought two black guinea pigs, one male and one female, of the same genotype from the pet store that are known to be heterozygous (Bb). You also know that black fur (BB) is dominant over white fur (bb) and that a lethal recessive allele is located only one cM away from the recessive b allele, and your animals are both heterozygous for this gene also. What is the probability of finding a white individual among the progeny...
8. A pure line of Guinea pigs with genotype AlA; b/b is crossed to a pure...
8. A pure line of Guinea pigs with genotype AlA; b/b is crossed to a pure line with genotype ala BB. The Fi male and female Guinea pugs are crossed to each other to generate the F2-What proportion of the F2 individuals are the result of a recombinant egg being fertilized by a recombinant sperm? E. 10/16
A pure-breeding strain of guinea pig with black fur is crossed to a pure breeding strain...
A pure-breeding strain of guinea pig with black fur is crossed to a pure breeding strain with white fur. A number of possible progeny phenotypes are listed below. What would each phenotype indicate about the dominance relationship between alleles of this locus? (i) All the progeny are white [1 mark] (ii) All the progeny are black [1 mark] (iii) All the progeny are grey [1 mark] (iv) All the progeny have patches of white and black fur [1 mark]
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...
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 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...
1. You just bought two black guinea pigs, one male and one female, of the same genotype from the pet store that are known to be heterozygous (Bb). You also know that black fur (BB) is dominant over white fur (bb) and that a lethal recessive allele is located only one cM away from the recessive b allele, and your animals are both heterozygous for this gene also. What is the probability of finding a white individual among the progeny...
8. A pure line of Guinea pigs with genotype AlA; b/b is crossed to a pure line with genotype ala BB. The Fi male and female Guinea pugs are crossed to each other to generate the F2-What proportion of the F2 individuals are the result of a recombinant egg being fertilized by a recombinant sperm? E. 10/16
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...
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