Principles of Biology
Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 15, Problem 1TY

Experimental advantages of using pea plants included which of the following?

  1. They came in several varieties.
  2. They were capable of self-fertilization.
  3. They were easy to cross.
  4. Their anthers could be removed prior to pollination.
  5. All of the above were advantages.

Expert Solution & Answer
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Summary Introduction

Introduction:

Gregor Mendel has chosen pea plants for experiments because they are easily grown, have many offspring per mating, could fertilize themselves and have easily observable varieties of genotype and phenotype.

Answer to Problem 1TY

The correct answer is option (e) all of the above.

Explanation of Solution

Explanation/justification for the correct answer:

Option (e) all of the above. Peas are found in many varieties that vary in features such as seed size, seeds, flowers, and stems. A female gamete of the same plant is fertilized by a male gamete; this is called self-fertilization. The female and male sex organs are present in the single flower (same flower) of peas. Garden peas are ease of making crosses. The process is known as hybridization when two individuals of the same species are crossed or bred to each other with different characteristics and the offspring are refers to as hybrids. The anther can be removed so that the flower could not self-fertilize and the pollen can be transfer to another flower of a different plant. So, the correct answer is option (e).

Explanation for incorrect answer:

Option (a) They came in several varieties. Peas are present in several varieties that differ in features such as the appearance of seeds, flowers, pods, and stems. Thus, this is not only the correct option. So, this is an incorrect option.

Option (b) They were capable of self-fertilization. In a pea plant, a female gamete is fertilized by a male gamete which is said as self-fertilization. Thus, this is not only the correct option. So, this is an incorrect answer.

Option (c) They were easy to cross. When two pea plants with different features are crossed or bred to each other, the process is said to as hybridization and the offsprings are referred to as hybrids. Thus, this is not only the correct option. So, this is an incorrect answer.

Option (d) Their anthers could be removed before pollination. The anther can be removed so that the flower could not self-fertilize and the pollen can be transfer to another flower of a different plant. Thus, this is not only the correct option. So, this is an incorrect answer.

Conclusion

Experimental advantages of using pea plants included (d) all of the above were advantages.

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