Homework Answers
ANSWER 11
9 YG dominant: 3 Y dominant: 3 G dominant: 1 yg
recessive
9 Purple: 3 Green: 3 Yellow: 1 Black
ANSWER 12
A minimum of 2 loci are required to procude this kind of a result.
That is because the other loci might be able to influence the
production of another trait that could lead to the brown
phenotype.
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You cross two crows, one with yellow legs, and the other with green legs. All of...
In sweet peas, two genes (genes A and B) control flower color. The dominant alleles of...
In sweet peas, two genes (genes A and B) control flower color. The dominant alleles of both genes produce enzymes that function in the biochemical pathway shown to convert colorless precursors to a purple pigment. The recessive alleles do not produce enzyme. Therefore, at least one dominant allele of both gene A and gene B are required for purple flowers. Answer the questions about this biochemical pathway. ΑΑ, Αα BB, Bb Enzyme A Enzyme B Colorless precursor 1 Colorless precursor...
1. In a cross between two pure-breeding varieties of radish, one with red and the other...
1. In a cross between two pure-breeding varieties of radish, one with red and the other with white roots, all the F1 progeny had purple roots. The F2 obtained by selfing the F1 segregated as follows: Red Purple 80222 White 98 Two models (A and B) were suggested to account for these results:- A) Root colour is controlled by a single gene with two alleles showing incomplete dominance B) Root colour is controlled by two unlinked genes showing (recessive) epistasis....
As it is UNIT GENETICS PROBLEMS #2: TEST CROSSES 1. In peas, green pods are dominant...
As it is
UNIT GENETICS PROBLEMS #2: TEST CROSSES 1. In peas, green pods are dominant and yellow pods are the recessive trait. You have pea plants with green pods but you are unsure of the parentage of these plants. How would you determine the genotype of your green pod plants 2. Two black mice mate. Six of their offspring are black and two are white. (Black fur is dominant to white.) a· What are the genotypes of the parents....
Question 2b) You are studying a flowering plant that produces remarkable bright green flowers in its...
Question 2b) You are studying a flowering plant that produces remarkable bright green flowers in its wild type. Your colleagues have discovered two new mutant lines of this plant. One new line breeds true for a yellow flower color. Another new line breeds true for a blue flower color. Your group does the following crosses and makes these observations: yellow X green ⇒ F1 is all green ⇒ F2 75% green and 25% yellow blue X green ⇒ F1 is...
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between...
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between a white-eyed male fruit fly, and a female that is heterozygous for red eye color? (See Chapter 8.3 Figure your e Text) 2 white-eyed females 2 red-eyed males V none of these 2 red-eyed female 1 white-eyed female: 1 red-eyed male: 2 white-eyed male 1 red-eyed female 1 white-eyed female 1 red-eyed male: 1 white-eyed male 2 red-eyed females: 2 white-eyed males Question 39...
Please help with this genetic question. If possible, show work. Thank you ! Question 29 0/2...
Please help with this genetic question. If possible, show work.
Thank you !
Question 29 0/2 pts Two unlinked, epistatic genes regulate production of flower pigments in diploid sweet peas, as shown in the metabolic pathway below. Each gene codes for the production of an enzyme, and each gene has two possible alleles-dominant and recessive. Plants with at least one dominant R allele will produce the blue pigment. Plants with at least one dominant R allele and at least one...
1. You want to determine whether three prairie dog genes are linked, and if so what...
1. You want to determine whether three prairie dog genes are linked, and if so what is the order of the genes and how many map units are they away from each other. Capital letters are dominant: L = long necked, I = short-necked, G = gray fur, g = brown fur, R = red eyes, r = pink eyes. True-breeding parentals of opposite phenotypes were bred to produce the F1 hybrids, then the F1 hybrids were test crossed to...
The F1 generation is all yellow chromosomes, with just two homologous pairs, making n-2 (haploid) and...
The F1 generation is all yellow
chromosomes, with just two homologous pairs, making n-2 (haploid) and 2n -4 (diploid). Two unlinked gene loci affect flower color in this species. At the P locus found on the larger of the two chromosome pairs, the dominant P allele causes pigment to be deposited in the petals. The recessive p allele. when homozygous, results in no pigment being placed in the petals, leading to flowers with white petals. The Y locus, found on...
does someone know the answer for these questions? Thank you so much 3. In certain breeds...
does someone know the answer for these questions? Thank you so
much
3. In certain breeds of dogs, black color is dominant and red color is recessive. Solid color is dominant and spotting is recessive. A homozygous black male is crossed with a red-and-white spotted female. What is the probability of them producing a solid black puppy? 4. In horses, black color (B) dominates chestnut color (b). The trotting gait (T) dominates the pacing gait (t). A cross is made...
1. In loppins (fictitious diploid invertebrates), ear shape is controlled by two genes with two alleles...
1. In loppins (fictitious diploid invertebrates), ear shape is controlled by two genes with two alleles each; upright ears (F) is dominant to floppy ears (f), and double-pointed ears (P) is dominant to single-pointed ears (p). Moreover, due to genetic interactions, floppy ears are always single-pointed. A loppin with floppy ears is crossed to a loppin with upright single-pointed ears, and the phenotypic ratios in the offspring are 2 floppy : 1 double-pointed upright : 1 single-pointed upright. What are...
In sweet peas, two genes (genes A and B) control flower color. The dominant alleles of both genes produce enzymes that function in the biochemical pathway shown to convert colorless precursors to a purple pigment. The recessive alleles do not produce enzyme. Therefore, at least one dominant allele of both gene A and gene B are required for purple flowers. Answer the questions about this biochemical pathway. ΑΑ, Αα BB, Bb Enzyme A Enzyme B Colorless precursor 1 Colorless precursor...
1. In a cross between two pure-breeding varieties of radish, one with red and the other with white roots, all the F1 progeny had purple roots. The F2 obtained by selfing the F1 segregated as follows: Red Purple 80222 White 98 Two models (A and B) were suggested to account for these results:- A) Root colour is controlled by a single gene with two alleles showing incomplete dominance B) Root colour is controlled by two unlinked genes showing (recessive) epistasis....
As it is
UNIT GENETICS PROBLEMS #2: TEST CROSSES 1. In peas, green pods are dominant and yellow pods are the recessive trait. You have pea plants with green pods but you are unsure of the parentage of these plants. How would you determine the genotype of your green pod plants 2. Two black mice mate. Six of their offspring are black and two are white. (Black fur is dominant to white.) a· What are the genotypes of the parents....
Help Center 07 Question 38 What phenotypic ratio of offspring would result from a cross between a white-eyed male fruit fly, and a female that is heterozygous for red eye color? (See Chapter 8.3 Figure your e Text) 2 white-eyed females 2 red-eyed males V none of these 2 red-eyed female 1 white-eyed female: 1 red-eyed male: 2 white-eyed male 1 red-eyed female 1 white-eyed female 1 red-eyed male: 1 white-eyed male 2 red-eyed females: 2 white-eyed males Question 39...
Please help with this genetic question. If possible, show work.
Thank you !
Question 29 0/2 pts Two unlinked, epistatic genes regulate production of flower pigments in diploid sweet peas, as shown in the metabolic pathway below. Each gene codes for the production of an enzyme, and each gene has two possible alleles-dominant and recessive. Plants with at least one dominant R allele will produce the blue pigment. Plants with at least one dominant R allele and at least one...
1. You want to determine whether three prairie dog genes are linked, and if so what is the order of the genes and how many map units are they away from each other. Capital letters are dominant: L = long necked, I = short-necked, G = gray fur, g = brown fur, R = red eyes, r = pink eyes. True-breeding parentals of opposite phenotypes were bred to produce the F1 hybrids, then the F1 hybrids were test crossed to...
The F1 generation is all yellow
chromosomes, with just two homologous pairs, making n-2 (haploid) and 2n -4 (diploid). Two unlinked gene loci affect flower color in this species. At the P locus found on the larger of the two chromosome pairs, the dominant P allele causes pigment to be deposited in the petals. The recessive p allele. when homozygous, results in no pigment being placed in the petals, leading to flowers with white petals. The Y locus, found on...
does someone know the answer for these questions? Thank you so
much
3. In certain breeds of dogs, black color is dominant and red color is recessive. Solid color is dominant and spotting is recessive. A homozygous black male is crossed with a red-and-white spotted female. What is the probability of them producing a solid black puppy? 4. In horses, black color (B) dominates chestnut color (b). The trotting gait (T) dominates the pacing gait (t). A cross is made...
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