Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 2.1, Problem 3COMQ
To avoid self-fertilization in his pea plants, Mendel had to
a. spray the plants with a chemical that damaged the pollen.
b. remove the anthers from immature flowers.
c. grow the plants in a greenhouse that did not contain pollinators (e.g., bees).
d. do all of the above.
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Experimental advantages of using pea plants include which ofthe following?a. They came in several different varieties.b. They were capable of self-fertilization.c. They were easy to cross.d. All of the above were advantages
A cross is made between a green four-o’clock plant and a variegated one. If the variegated plant provides the pollen, the expected outcome of the phenotypes of the offspring will bea. all plants with green leaves.b. 3 plants with green leaves to 1 plant with variegated leaves.
c. 3 plants with green leaves to 1 plant with white leaves.d. some plants with green leaves, some with variegatedleaves, and some with white leaves
In a flower, Letter P for purple is dominant over p for white. What is the phenotype of a heterozygote flower?
A. PPP
B. Purple
C. Pp
D. white
Chapter 2 Solutions
Genetics: Analysis and Principles
Ch. 2.1 - 1. Experimental advantages of using pea plants...Ch. 2.1 - The term cross refers to an experiment in which a....Ch. 2.1 - 3. To avoid self-fertilization in his pea plants,...Ch. 2.2 - Prob. 1COMQCh. 2.2 - Prob. 2COMQCh. 2.3 - A pea plant has the genotype rrYy. How many...Ch. 2.3 - A cross is made between a pea plant that is RrYy...Ch. 2.3 - Prob. 3COMQCh. 2.4 - Which of the following would not be observed in a...Ch. 2.4 - Prob. 2COMQ
Ch. 2.5 - A cross is made between AABbCcDd and AaBbccdd...Ch. 2.5 - Prob. 2COMQCh. 2.5 - Prob. 3COMQCh. 2 - 1. Why did Mendel’s work refute the idea of...Ch. 2 - 2. What is the difference between...Ch. 2 - 3. Describe the difference between genotype and...Ch. 2 - 4. With regard to genotypes, what is a...Ch. 2 - 5. How can you determine whether an organism is...Ch. 2 - In your own words, describe Mendels law of...Ch. 2 - Based on genes in pea plants that we have...Ch. 2 - Prob. 8CONQCh. 2 - Do you know the genotype of an individual with a...Ch. 2 - 10. A cross is made between a pea plant that has...Ch. 2 - Prob. 11CONQCh. 2 - 12. Describe the significance of nonparentals with...Ch. 2 - For the following pedigrees, describe what you...Ch. 2 - Ectrodactyly, also known as lobster claw syndrome,...Ch. 2 - Identical twins are produced from the same sperm...Ch. 2 - In cocker spaniels, solid coat color is dominant...Ch. 2 - A cross was made between a white male dog and two...Ch. 2 - 18. In humans, the allele for brown eye color (B)...Ch. 2 - Albinism, a condition characterized by a partial...Ch. 2 - A true-breeding tall plant was crossed to a dwarf...Ch. 2 - 21. For pea plants with the following genotypes,...Ch. 2 - 22. An individual has the genotypeand makes an...Ch. 2 - 23. In people with maple syrup urine disease, the...Ch. 2 - Prob. 24CONQCh. 2 - 25. A true-breeding pea plant with round and Page...Ch. 2 - Prob. 26CONQCh. 2 - 27. What are the expected phenotypic ratios from...Ch. 2 - Prob. 28CONQCh. 2 - Prob. 29CONQCh. 2 - A pea plant that is dwarf with green, wrinkled...Ch. 2 - 31. A true-breeding plant with round and green...Ch. 2 - Wooly hair is a rare dominant trait found in...Ch. 2 - Huntington disease is a rare dominant trait that...Ch. 2 - 34. A woman with achondroplasia (a dominant form...Ch. 2 - 1. Describe three advantages of using pea plants...Ch. 2 - Explain the technical differences between a...Ch. 2 - 3. How long did it take Mendel to complete the...Ch. 2 - 4. For all seven characters described in the data...Ch. 2 - From the point of view of crosses and data...Ch. 2 - 6. As in many animals, albino coat color is a...Ch. 2 - 7. The fungus Melampsora lini causes a disease...Ch. 2 - For Mendels data for the experiment in Figure 2.8,...Ch. 2 - 9. Would it be possible to deduce the law of...Ch. 2 - In fruit flies, curved wings are recessive to...Ch. 2 - A recessive allele in mice results in an unusally...Ch. 2 - Prob. 12EQCh. 2 - Prob. 13EQCh. 2 - Prob. 14EQCh. 2 - 15. A cross was made between two strains of plants...Ch. 2 - A cross was made between two pea plants, TtAa and...Ch. 2 - Consider this four-factor cross: TtRryyAaTtRRYyaa,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Consider a plant that has the "Leaf" gene (L) that causes leaves to be either smooth or wrinkled and is inherited through complete dominance. Heterozygotes of the L gene are smooth. A. What are the two alleles of the gene? B. What is the recessive phenotype? C. What is the genotype of a homozygous dominant individual? D. What gametes can a heterozygous individual make? E. Make a Punnett square to predict the percentage or fraction of recessive progeny when two heterozygous individuals are mated. WHOITICS0OTAarrow_forwardIn peas, tall stems & axial flowers are dominant to dwarf stems & terminal flowers, which are recessive. If you have a tall, axial flowering plant and want to determine its genotype, what kind of pea should you breed it with? a. tall & axial flowering b. dwarf & axial flowering c. dwarf & terminal flowering d. tall & terminal floweringarrow_forwardA scientist pollinates a true-breeding pea plant with violet, terminal flowers with pollen from a true-breeding pea plant with white, axial flowers. Which of the following observations would most accurately describe the F2 generation? a. 75% violet flowers; 75% terminal flowers b. 75% white flowers in a terminal position c. 75% violet flowers; 75% axial flowers d. 75% violet flowers in an axial positionarrow_forward
- You experiment with the genetics of height in a plant. You cross a homozygous tall (TT) plant with a homozygous short (tt) plant. Describe what the genotype and phenotype of the F1 progeny would look like if the plants exhibited complete dominance. Now describe the expected results if the trait exhibited incomplete dominance. What about the F2 progeny, assuming you crossed the F1 progeny with each other?arrow_forwardA cross is made between a pea plant that is RrYy and one that isrrYy. What is the predicted outcome of the seed phenotypes?a. 9 round, yellow : 3 round, green : 3 wrinkled, yellow :1 wrinkled, greenb. 3 round, yellow : 3 round, green : 1 wrinkled, yellow :1 wrinkled, green c. 3 round, yellow : 1 round, green : 3 wrinkled, yellow :1 wrinkled, greend. 1 round, yellow : 1 round, green : 1 wrinkled, yellow :1 wrinkled, greenarrow_forwardWhy plant breeders intend to change the inheritance of crop plants? How plant breeders can change the heredity of crop plants? Explain your answer in briefly.arrow_forward
- In Iowa, a company called Team Corn works to ensure that fields of seed corn outcross so that hybrid vigor can be maintained. They do this by removing the staminate (that is, pollen-producing) flowers from the corn plants. In an attempt to put Team Corn out of business, you would like to develop genetically engineered corn plants that a. contain Z genes to prevent germination of pollen on the stigmatic surface. b. contain S genes to stop pollen tube growth during selffertilization. c. express B-type homeotic genes throughout developing flowers. d. express A-type homeotic genes throughout developing flowers.arrow_forwardHow can you determine the genotype of a plant showing the dominant phenotype of red color? A. Cross the red plant with a white plant to see how many red plants appear B. Cross the red plant with other red plants to see if any white plants appear. C. Cross the red plant with a white plant to see if any white plants appear. D. The phenotype reflects the genotype, so the plant must be homozygous for the trait.arrow_forwardWhich answer below is an example of heterozygous, Plant that expresses incomplete dominance for flower color. A. A plant with lavender white and purple flowers B. A plant with purple flowers C. A plant with lavender flowers D. A plant with purple and white flowersarrow_forward
- A plant that is homozygous for the recessive yellow pod color is crossed with a plant that is heterozygous. Which phenotype will appear MOST in the offspring? A. There will only be plants with green pods. B. There will be more plants with green pods. C. There will be more plants with yellow pods. D. Plants with yellow and green pods will appear in equal numbers.arrow_forwardDesign an experiment/cross that would allow you to determine the genotype of a purple-flowered plant. Show the possible outcomes of the experiment and how they would allow you to determine the genotype.arrow_forwardvallross between true-breeding green-podded pea plants and true-breeding yellow-podded pea plants produces only green-podded plants. When the F1 generation is allowed to self- pollinate, the F2 generation consists of a. only green-podded plants. b. only yellow-podded plants. C. about % yellow-podded plants and 4 green-podded plants. d. about % green-podded plants and 4 yellow-podded plants. 3. The appearance of an organism is its a. genotype. b. phenotype. c. genotypic ratio. d. phenotypic ratio. 4. Since the ABO blood group alleles are codominant, an individual with the genotype I^1B will have blood type a. A. b. B. C. AB. d. O. 5. Which of these pertains to Mendel's law of independent assortment? a. observable characteristics of a trait b. separation of alleles during meiosis C. random distribution of alleles d. protein production of segregation? 6. Which statement pertains to Mendel's a. Homozygous organisms are called hybrids. b. Two alleles for each trait separate during meiosis.…arrow_forward
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