If you crossed a tall one with a dwarf one, and you grew a lot of...
Homework Answers
Upon crossing a tall one (TT or Tt) with a dwarf one
(tt), we get 50% tall offsprings and 50% short offsprings. This is
only possible when the genotype of the tall parent turns out to be
heterogenous. Hence:
A. Tt
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If
you crossed a tall one with a dwarf one, and you grew a lot of...
a) In radishes, the plants can be tall (allele T) or dwarf (allele t). Tall is...
a) In radishes, the plants can be tall (allele T) or dwarf (allele t). Tall is dominant. Root color can be red (allele RR), white (allele RW), or pink (heterozygote). A radish that is true-breeding for both red roots and tallness (RRRR TT) is crossed with a radish that is true-breeding for both white roots and being dwarf (RWRW tt). Write the genotype and phenotype for the F1 generation. b) Assume the two genes for plant height and root color are...
12. In snapdragons, the allele for tall plants is dominant to the allele for dwarf plants...
12. In snapdragons, the allele for tall plants is dominant to the allele for dwarf plants , and t he allele for red flowers is codominant with the allele for white flowers . The heterozygous condition for flower color is pink. Question – If a dwarf red snapdragon is crossed with a white snapdragon homozygous for tall, what are the probable genotypes and phenotypes of the F1 generation? a. tall and pink b. tall and red c. tall and white...
An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant....
An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant. The following offspring are observed: Tall, round: 510 Tall, wrinkled: 495 Dwarf, round: 490 Dwarf, wrinkled: 505 a. What is the expected phenotype ratio? WW or ###.#, depending on what you think the answer is. b. What is the calculated chi-square value? Format your answer with 1 significant digit (...). Sure, you can try to guess it 10 times, but work it out so...
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...
C. In garden peas, one pair of alleles controls the height of the plant and a...
C. In garden peas, one pair of alleles controls the height of the plant and a second pair of allele controls flower color. The allele for tall (T) is dominant to the allele for dwarf (t), and the allele for purple (P) is dominant to the allele for white (p). a. A tall plant with purple flowers crossed with a dwarf plant with white flowers produces 1/2 tall with purple flowers and 1/2 tall with white flowers. What is the...
two questions: 1) In one experiment, Mendel crossed a purple-flowered, tall plant that had come from...
two questions: 1) In one experiment, Mendel crossed a purple-flowered, tall plant that had come from a previous hybridization (i.e., it was not true breeding) with a white-flowered, dwarf plant. The results were as follows: • Purple flowers, tall 47 • White flowers, tall 40 • Purple flowers, dwarf 38 • White flowers, dwarf 41 What are the genotypes of both parent plants and all of the 4 classes of progeny? 2) Fur color in tribbles is determined by a...
, Pre-Lab Assignment P generation 1. Figure 9.8 illustrates one of Gregor Mendel's Dwarf breeding...
, Pre-Lab Assignment P generation 1. Figure 9.8 illustrates one of Gregor Mendel's Dwarf breeding experiments with his pea plants. ai Genetic makeup: In this particular experiment with pea plant height, the P generation consisted of pure- breeding tall pea plants mated with pure- breeding dwarf pea plants. Gametes: 0 plants nated wito Fill in the blanks of the following paragraph ,geneation concerning this experiment. Gregor Mendel discovered several new ideas about inheritance when he performed breed- Genetic makeup: ing...
Individual 1 with phenotype T for tall is test-crossed, and half of the offspring produced have...
Individual 1 with phenotype T for tall is test-crossed, and half of the offspring produced have phenotype T and half have phenotype t. What are the genotypes of the individuals that were crossed? A) TT and tt B) Tt and tt C) Tt and Tt D) TT and Tt
Determine the guys and F, cats. 20. In a plant, a tall variety was crossed with...
Determine the guys and F, cats. 20. In a plant, a tall variety was crossed with a dwarf variety. All E. plants were tall. When F, ~ Fı plants were interbred, 9/16 of the F, were tall and 7/16 were dwarf. (a) Explain the inheritance of height by indicating the number of gene pairs involved and by designating which genotypes yield tall and which yield dwarf. (Use dashes where appropriate.) (b) What proportion of the F2 plants will be true...
hedrozygay heolvozyggay 1. Cross a homezygous tall (Tt) plant with a homoavgous dwarf plant (tt). Show...
hedrozygay heolvozyggay 1. Cross a homezygous tall (Tt) plant with a homoavgous dwarf plant (tt). Show the Punnett square in the space below. (5 pts) a. Which is the dominant allele? How do you know? (1 pt) b. What is the % of tall plants? What is the % of dwarf plants? (1 pt) 2. You are breeding Labrador retrievers. The female is Bbee and the male is heterozygous black BbEe. Show the results in a Punnet square. (10 pts)...
An F1 tall, round seed pea plant is crossed with a dwarf, wrinkled seed pea plant. The following offspring are observed: Tall, round: 510 Tall, wrinkled: 495 Dwarf, round: 490 Dwarf, wrinkled: 505 a. What is the expected phenotype ratio? WW or ###.#, depending on what you think the answer is. b. What is the calculated chi-square value? Format your answer with 1 significant digit (...). Sure, you can try to guess it 10 times, but work it out so...
C. In garden peas, one pair of alleles controls the height of the plant and a second pair of allele controls flower color. The allele for tall (T) is dominant to the allele for dwarf (t), and the allele for purple (P) is dominant to the allele for white (p). a. A tall plant with purple flowers crossed with a dwarf plant with white flowers produces 1/2 tall with purple flowers and 1/2 tall with white flowers. What is the...
, Pre-Lab Assignment P generation 1. Figure 9.8 illustrates one of Gregor Mendel's Dwarf breeding experiments with his pea plants. ai Genetic makeup: In this particular experiment with pea plant height, the P generation consisted of pure- breeding tall pea plants mated with pure- breeding dwarf pea plants. Gametes: 0 plants nated wito Fill in the blanks of the following paragraph ,geneation concerning this experiment. Gregor Mendel discovered several new ideas about inheritance when he performed breed- Genetic makeup: ing...
Determine the guys and F, cats. 20. In a plant, a tall variety was crossed with a dwarf variety. All E. plants were tall. When F, ~ Fı plants were interbred, 9/16 of the F, were tall and 7/16 were dwarf. (a) Explain the inheritance of height by indicating the number of gene pairs involved and by designating which genotypes yield tall and which yield dwarf. (Use dashes where appropriate.) (b) What proportion of the F2 plants will be true...
hedrozygay heolvozyggay 1. Cross a homezygous tall (Tt) plant with a homoavgous dwarf plant (tt). Show the Punnett square in the space below. (5 pts) a. Which is the dominant allele? How do you know? (1 pt) b. What is the % of tall plants? What is the % of dwarf plants? (1 pt) 2. You are breeding Labrador retrievers. The female is Bbee and the male is heterozygous black BbEe. Show the results in a Punnet square. (10 pts)...
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