The result is highly inbred, or “true-breeding,” pea plants. These are plants that always produce offspring that look like the parent. By experimenting with true-breeding pea plants, Mendel avoided the appearance of unexpected traits in offspring that might occur if the plants were not true breeding.
What does it mean that pea plants are true-breeding?
A true-breeding plant is one that, when self-fertilized, only produces offspring with the same traits. True-breeding organisms are genetically identical and have identical alleles for specified traits. The alleles for these type of organisms are homozygous.
What does true-breeding in pea plants mean quizlet?
true breeding plant. a plant for a given trait is one that always produces offspring with the same trait when it is self-pollinated.
What is the meaning of true-breeding?
A true-breeding organism, sometimes also called a purebred (biology slang: pure line or true-breeding line), is an organism that always passes down certain phenotypic traits (i.e. physically expressed traits) to its offspring of many generations.
Why were true-breeding pea plants important?
True-breeding pea plants were important to Mendel’s experiments because the true-breeding pea plants acted as the control group, meaning that Mendel used the true-breeding pea plants to compare the results of his cross-breeding pea plants. Without them, he would have nothing to compare his genetic variations to.
What does true-breeding mean quizlet?
A true breeding organism, sometimes also called a pure-bred, is an organism that always passes down a certain phenotypic trait to its offspring. An organism is referred to as true breeding for each trait to which this applies, and the term “true breeding” is also used to describe individual genetic traits.
How did Mendel produce true-breeding pea plants?
Mendel took advantage of this property to produce true-breeding pea lines: he self-fertilized and selected peas for many generations until he got lines that consistently made offspring identical to the parent (e.g., always short). Pea plants are also easy to cross, or mate in a controlled way.
What is true breeding quizlet Chapter 10?
Pure breeding is the same thing as True breeding. –Organisms possess traits that remain inheritably unchanged by all offspring produced by self-fertilization.
What does true breeding mean when the plant is pollinated quizlet?
plants that are true breeding for a trait always produce offspring with that trait when they self pollinate. outline how mendel produced plants that had genes for both contrasting traits of a characteristic. mendel first produced true breeding plants.
What is selective breeding quizlet?
Selective Breeding. A method of breeding that allows only those individual organisms with desired characteristics to produce the next generation. Hybridization. A breeding technique that involves crossing dissimilar individuals to bring together the best characteristics of both organisms.
What are the true breeding plants examples?
An example of true breeding would be a tall, purple plant that has the genotype PPTT. Anytime the plant is crossed to itself, or another plant of the same genotype, the phenotype of the offspring will match the parents. In this case, all offspring would be purple and tall.
What are the characteristic features of a true breeding line?
Following are the characteristic features of a true-breeding line:
- Self-pollination through successive generation.
- Stable trait inheritance through several generations.
- Stable expression of characters through several generations.
How could you be sure they are true breeding quizlet?
How could you be sure they are true-breeding? Matings of the original mutant cat with true-breeding noncurl cats will produce both curl and noncurl F1 offspring if the curl allele is dominant, but only noncurl offspring if the curl allele is recessive.
How do you find true-breeding plants?
A true breeding plant is :
- A. Always homozygous recessive in its genetic constitution.
- B. One that is able to breed on its own.
- C. Produced due to cross pollination among unrelated plants.
- D. homozygous and produces offspiring of its kind.
Why did Mendel work with pea plants?
Mendel was curious about how traits were transferred from one generation to the next, so he set out to understand the principles of heredity in the mid-1860s. Peas were a good model system, because he could easily control their fertilization by transferring pollen with a small paintbrush.
What is the difference between pure breeding and true breeding?
A purebred refers to offspring resulting from a true breeding. True breeding is a way to produce offspring that would carry the same phenotype as the parents. Thus, a purebred would result when the parents are homozygous for certain traits.
Which description defines an individual that is true breeding?
A kind of breeding in which the parents with a particular phenotype produce offspring only with the same phenotype. A true breeding is a kind of breeding wherein the parents would produce offspring that would carry the same phenotype. This means that the parents are homozygous for every trait.
What term is used to describe the genotype of an organism that is true breeding?
Homozygous for the true-breeding trait. The non-mutant form of a gene, encoding the normal genetic function. Generally, but not always a dominant allele.
When they self fertilize true-breeding plants always produce offspring with a form of a trait that?
true-breeding plant: a plant that always produces offspring of the same phenotype when self-fertilized; one that is homozygous for the trait being followed.
Which of the following is true with regards to the Law of Independent Assortment?
Which of the following is true with regards to the law of independent assortment? Each pair of alleles assorts independently of the other allele pairs. alternate versions of the same gene. If a heterozygous dominant tall pea plant is crossed with a short pea plant, what is the expected phenotypic ratio?
What is a pair of genes called?
A pair of genes are called a pair of alleles and it is referred to as the genotype. If a person contains a pair of the same alleles, then it is called homozygous and if the two alleles are different it is termed as heterozygous.
Justin Shelton is a professional cook. He’s been in the industry for over 10 years, and he loves nothing more than creating delicious dishes for others to enjoy. Justin has worked in some of the best kitchens in the country, and he’s always looking for new challenges and ways to improve his craft. When he’s not cooking, Justin enjoys spending time with his wife and son. He loves exploring new restaurants and trying out different cuisines.