1. Genetically identical plants are planted in a garden. Ones on the east edge of the...
1.
Genetically identical plants are planted in a garden. Ones on the east edge of the garden produce blue flowers; the others produce pink flowers. How can this best be explained?
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environmental factors influence flower color |
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the alleles are codominant |
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the allele for blue flowers is dominant |
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a mutation must have occurred |
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multiple alleles affect flower color |
2.
In a species of mammal, some individuals are true-breeding for red hair. Others are true-breeding for brown hair. A true-breeding red individual is crossed with a true-breeding brown individual. Their offspring have a mixture of red and brown hairs. What is true of the alleles for hair color?
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Brown is dominant; red is recessive. |
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The alleles show incomplete dominance. |
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They are codominant. |
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Red is dominant; brown is recessive. |
3.
What cellular processes explain how a genotype can affect a phenotype? Choose all the correct answers.
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translation |
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meiosis |
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DNA synthesis |
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transcription |
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Genetically identical plants are planted in a garden. Ones on
the east edge of the...
1. A plant with red flowers is crossed with a white-flowered plant of the same species....
1. A plant with red flowers is crossed with a white-flowered plant of the same species. All the seeds, when grown, produce plants with red flowers. Assuming that the flower color is controlled by a single pair of alleles, which allele is dominant and which is recessive? 2. How does inbreeding increase the incidence of recessive disorders in a population? 3. Why does an individual always have only two alleles for a given gene? 4. In cats, the allele (S) for short fur...
Name: (Last) (First) Section: 8. Flower color (20 Points) Plant X can produce magenta, blue or...
Name: (Last) (First) Section: 8. Flower color (20 Points) Plant X can produce magenta, blue or breeding white flower plant to a true b from this cross produced blue flowers. He se blue flowers, 398 white flower- and 301 magenta flower-prou generation agenta, blue or white flowers. A gardener crossed a true int to a true breeding magenta plant. All Fl progenies lue flowers. He self-crossed the Fls and obtained 895 magenta flower-producing plants in the F2 a. What is...
please answer question 1-4 with a breif explanation thankyou 1. In humans, red-green color-blindness is a...
please answer question 1-4 with a breif explanation
thankyou
1. In humans, red-green color-blindness is a sex-linked (carried on the X chromosome) recessive trait. If a woman who is not color blind but whose father was color-blind marries a man who is not color-blind, what is the probability that their first child will be a daughter who is color- blind? a) 0 b) 25% c) 50%- d) 100%- e) cannot tell from the information given 2. In a certain species...
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CONTENT QUESTIONS (answer these for credit) 1. In an experiment to trace the inheritance of two traits in pea plants, a researcher decided to look at height, which is controlled by two alleles. The dominant allele T produces a tall plant while the recessive allele t produces a short plant. Flower color is controlled by one gene with two alleles as well. The dominant allele P produces purple flowers, and the recessive p produces white flowers. If the female parent...
please answer two question below thankyou e) 9; 9 3. In another plant species, the presence...
please answer two question below
thankyou
e) 9; 9 3. In another plant species, the presence and type of hairs on the plant are controlled by epistatic interaction between two independently assorting genes. Gene C determines whether the plant has hairs (dominant) or not (recessive); Rene D determines whether the hairs are straight (dominant) or curly (recessive). In a cross between a straight-haired plant and a curly- haired plant, 1/4 of the offspring have no hairs. 3/8 have straight hairs,...
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DO THEM ALL AND BE CLEAR Question 11 pts When Mohan and Begum matted and had cubs, all cubs were what coat color(s)? 3:1 orange to white 1:1 orange All orange coated 2:1 orange to white Flag this Question Question 21 pts One outcome of the blending model of inheritance would be that there would be no phenotypic variation left within a species over time Evolution would proceed more quickly only some traits could deb inherited only continuously variable traits...
1. In one experiment, Mendel crossed a pea plant that bred true for axial flowers with...
1. In one experiment, Mendel crossed a pea plant that bred true for axial flowers with a pea plant that bred true for terminal flowers. All the F1 plants had axial flowers. Which is the recessive trait? Explain your answer. 2. Green pod color is a dominant allele in pea plants (G). If two plants with green pods are crossed, some of the offspring have yellow pods. What are the possible genotypes of the parents? 3. In garden peas, one...
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...
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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...
In a population of Mendel's garden peas, the frequency of the dominant A (purple flower) allele...
In a population of Mendel's garden peas, the frequency of the dominant A (purple flower) allele is 80%. Letp represent the frequency of the A allele and q represent the frequency of the a allele. Assuming that the population is in Hardy-Weinberg equilibrium, what are the genotype frequencies? A. 16% AA, 40 % Aa, 44 % aa B. 80% AA, 10 % Aa, 10 % aa C. 50 % AA , 25 % As , 25 % aa * E....
Name: (Last) (First) Section: 8. Flower color (20 Points) Plant X can produce magenta, blue or breeding white flower plant to a true b from this cross produced blue flowers. He se blue flowers, 398 white flower- and 301 magenta flower-prou generation agenta, blue or white flowers. A gardener crossed a true int to a true breeding magenta plant. All Fl progenies lue flowers. He self-crossed the Fls and obtained 895 magenta flower-producing plants in the F2 a. What is...
please answer question 1-4 with a breif explanation
thankyou
1. In humans, red-green color-blindness is a sex-linked (carried on the X chromosome) recessive trait. If a woman who is not color blind but whose father was color-blind marries a man who is not color-blind, what is the probability that their first child will be a daughter who is color- blind? a) 0 b) 25% c) 50%- d) 100%- e) cannot tell from the information given 2. In a certain species...
CONTENT QUESTIONS (answer these for credit) 1. In an experiment to trace the inheritance of two traits in pea plants, a researcher decided to look at height, which is controlled by two alleles. The dominant allele T produces a tall plant while the recessive allele t produces a short plant. Flower color is controlled by one gene with two alleles as well. The dominant allele P produces purple flowers, and the recessive p produces white flowers. If the female parent...
please answer two question below
thankyou
e) 9; 9 3. In another plant species, the presence and type of hairs on the plant are controlled by epistatic interaction between two independently assorting genes. Gene C determines whether the plant has hairs (dominant) or not (recessive); Rene D determines whether the hairs are straight (dominant) or curly (recessive). In a cross between a straight-haired plant and a curly- haired plant, 1/4 of the offspring have no hairs. 3/8 have straight hairs,...
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...
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...
In a population of Mendel's garden peas, the frequency of the dominant A (purple flower) allele is 80%. Letp represent the frequency of the A allele and q represent the frequency of the a allele. Assuming that the population is in Hardy-Weinberg equilibrium, what are the genotype frequencies? A. 16% AA, 40 % Aa, 44 % aa B. 80% AA, 10 % Aa, 10 % aa C. 50 % AA , 25 % As , 25 % aa * E....
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