4. In garden peas, purple flowers (P) are dominant to white (p) flowers, and tall plants (T) are dominant to short plants (t). If a purple tall plant (PpTt) is crossed with a white short plant (pptt), what is the resulting phenotypic ratio? a. 1:1:1:1 purple tall to purple short to white tall to white short b. 9:3:3:1 purple tall to purple short to white tall to white short c. 3:2 purple tall to purple short d. all purple tall 5. Which does not contribute to genetic variation? a. chromosome number b. meiosis C. crossing over d. random mating 6. Which concept is considered an exception to Mendel's law of independent assortment? a. crossing over b. polyploidy C. gene linkage d. law of segregation

4. In garden peas, purple flowers (P) are dominant to white (p) flowers, and tall plants (T) are dominant to short plants (t). If a purple tall plant (PpTt) is crossed with a white short plant (pptt), what is the resulting phenotypic ratio? a. 1:1:1:1 purple tall to purple short to white tall to white short b. 9:3:3:1 purple tall to purple short to white tall to white short c. 3:2 purple tall to purple short d. all purple tall 5. Which does not contribute to genetic variation? a. chromosome number b. meiosis C. crossing over d. random mating 6. Which concept is considered an exception to Mendel's law of independent assortment? a. crossing over b. polyploidy C. gene linkage d. law of segregation

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 5RQ: Imagine that you are performing a cross involving seed texture in garden pea plants. You cross...

See similar textbooks

Similar questions

T = Tall t = short pollen from a tall pea plant T T eggs from a tall pea plant T TT TT t Tt Tt In the square shown, which of the following is true about the offspring resulting from the cross? Multiple Choice a. Half are expected to be short. b. All are expected to be tall. c. All are expected to be short. d. All are expected to be of medium height.
Tall is dominant to short and green pods are dominant to yellow pods. If you cross plants with the genotypes TtGg and TtGg, what fraction of the offspring will be tall with green pods? O 3/16 O 6/16 O 9/16 O 1/16 PRINECOMAS I.pptx PRINECOMA3 ..pptx MacBook Air 888 F2 F3 %23 2$ & 4. 6. T Y G H. K C. V comm V D.
a. 1 dominant allele will contribute 120/10 = 12 cm to the base height of the plant.b. The height of the parent plant 1 Genotype of the parent plant 1 – D1D1D2D2D3D3d4d4d5d5 The height of the parent plant 2 Genotype of the parent plant 2 – d1d1d2d2d3d3D4D4D5D5Contributing alleles – D4D4D5D5. The height of the plant without any contributing alleles would be 80 cm. The plant with genotype d1d1d2d2d3d3D4D4D5D5 has 4 contributing allele each of which contributes 12 cm to the base. Hence, the height of the plant with genotype d1d1d2d2d3d3D4D4D5D5 would be 80 + 12 + 12 + 12 + 12 = 128 cm. c. Parents – D1D1D2D2D3D3d4d4d5d5 × d1d1d2d2d3d3D4D4D5D5 Gametes – D1D2D3d4d5 × d1d2d3D4D5 F1 generation – D1d1D2d2D3d3D4d4D5d5 The height of the plants of F1 generation = 80 + 12 + 12 + 12 + 12 + 12 = 140 cm Hence, Genotype of the F1 = D1d1D2d2D3d3D4d4D5d5 Phenotype of…
The Camelia flower exhibits codominance with flowers being red, white, or white and red spotted. Determine the probability that a red flower crossed with a white and red flower will have a white offspring. O a. 0% O b. 50% O c. 25% O d. 75% e. 100%
Yellow seed color is dominant to green seed color. A plant that has homozygous recessive genotype is crossed with a heterozygous plant. What is the probability of the offspring's phenotype? A. 75% yellow seedsB. 50% green seedsC. 75% green seedsD. 100% green seedsE. 100% yellow seeds
In pea plants, round pea shape is dominant to wrinkled pea shape. If two pea plants that are true breeding for wrinkled peas are crossed, what shape of pea will the first generation of offspring have? O a. one quarter of the peas will be round and three quarters will be wrinkled O b. three quarters of the peas will be round and one quarter will be wrinkled O c. half of the flowers will be round and one quarter will be wrinkled O d. all of the peas will be wrinkled O e. all resulting peas will be round
Choose the correct answer. 1.What are the phenotypes of the offspring that results from a cross between snapdragon plants that produce red (RR) and pink (Rr) flowers? (Incomplete dominance) * a. 75% red, 25% pink b. 50% red, 50% pink c. 50% red, 25% pink, 25% white d. 75% pink, 25% red 2. In Dalmatian dogs, the spotted condition (S) is dominant over non-spotted (s). A litter of 8 pups were found—four spotted and four non-spotted. Based on the appearance of the pups, what are the genotypes of the parents? * a. Ss and Ss b. SS and ss c. Ss and ss d. ss and ss 3.The allele for brown eye (B) is dominant to that of blue eye (b). A brown-eyed man with a blue-eyed mother marries a blue-eyed woman. What is the probability that the first child is blue-eyed? * a. 25% b. 75% c. 50% d. 100% 4.The gene for green seed coat (G) is dominant to the gene for yellow seed coat (g). A plant with a yellow seed coat is crossed with a plant with a green seed coat. Eight of the offspring had yellow…
In a particular plant, long stem is dominant over short stem. This same plant may produce red flowers or white flowers with this trait showing nondominance. Cross a heterozygous long stemmed pink plant with a heterozygous long stemmed red flowering plant. 10. Genotype of the heterozygous long-stemmed pink Genotype of the heterozygous long-stemmed red Genotypes Phenotypes Created hv Amy Brown Science
A pink-flowered four-o’clock is crossed to a red-flowered plant.What is the expected outcome for the offspring's phenotypes?a. All pinkb. All redc. 1 red : 2 pink : 1 whited. 1 red : 1 pink
In garden peas, purple flowers (P) are dominant to white (p) flowers, and tall plants (T) are dominant to short plants (t). If a purple tall plant (PpTt) is crossed with a white short blant, what is the expected phenotypic ratio of the offspring? * O 1:1:1:1 purple tall to purple short to white tall to white short O 3:2 purple tall to purple short 9:3:3:1 purple tall to purple short to white tall to white short O 1:1 purple tall to purple short all purple tall
One Trait (Monohybrid) Crosses-Complete Dominance 1. In peas, inflated pod is dominant over wrinkled. If a homozygous inflated pod plant is crossed with a homozygous wrinkled pod plant, what will be the F₂ phenotypic ratio? 2. A tall pea plant crossed with a dwarf pea plant produces offspring of which about half are tall and half are dwarf. What are the genotypes of: a. the tall parent b. the dwarf parent 3. What does "test cross" or "backcross" mean?
A white-flowered plant is crossed with a pink-flowered plant. All of the F1 offspring from the cross are white. 4. Which phenotype is dominant? 5. What are the genotypes of the original parent plants? 6. What is the genotype of all the F1 offspring? 7. What would be the percentages of genotypes & phenotypes if one of the white F1 plants is crossed with a pink-flowered plant? 8. Which of Mendel's Laws is/are illustrated in this question? 9. Which cross would produce phenotypic ratios that would illustrate the Law of Dominance? C. Tt x Tt A. TT x tt B. TT x Tt D. tt x tt 10. Mendel formulated his Law of Segregation after he had: C. produced mutations D. produced hybrids A. studied F1 offspring B. studied F2 offspring