Concept explainers
Inquiry question What confounding problems could have been seen if Mendel had chosen another plant with exposed male and female structures?
To determine: The problems that Mendel could face if he had chosen another plant with exposed male and female structures.
Introduction: The gametes fuse to initiate the development of an offspring, and the process is termed as Fertilization. The process occurs if male and female gametes are produced via the same organism. Fertilization is also termed as generative Fertilization, insemination, pollination, fecundation, syngamy, and impregnation.
Explanation of Solution
The problems related to self-fertilization or cross-fertilization were found if the Mendel had chosen another plant with exposed male and female structures. Cross-fertilization is the process fusion of male and female gametes of the same species and different individuals. Mendel chose a pea plant flower, and petals enclose both the male anther and the female carpel, and this leads self-fertilization taking place till the flower is disturbed. Mendel gathered pollen from the anthers of a white flower, then stored pollen onto the stigma of a purple flower with anthers excluded. The cross-fertilization yields all hybrid seeds that give rise to purple flowers, and using pollen from a white flower to fertilize a purple flower provides the same result.
Want to see more full solutions like this?
Chapter 12 Solutions
<LCPO> BIOLOGY
- Question:- For a simple cross between a purple-flowered plant and a white-flowered plant, where purple is dominant over white. a. Show the F2 in a Punnett square. What are the proportions of genotypes and phenotypes? Express as fractions, decimal fractions and ratios. b. Now imagine that half of the pollen carrying the recessive allele die before reaching their target, while those carrying the dominant allele are unaffected; what are the proportions of genotypes and phenotypes now?What does this tell you about Mendel’s principle of segregation?arrow_forwardRead and explain the following based on your own understanding. 1. What is the importance of using a punnet square? 2. Explain how does Mendel became the father of heredity. 3. Is it possible to have an offspring that has no resemblance with the parents? Why?arrow_forwardplease describe 2 similarities between linkage and independent assortmentarrow_forward
- TOPIC: Variations in Gene Expression In a cross involving polygenic inheritance, three (3) gene pairs control plant height. The shortest and tallest plants are 12 cm and 24 cm, respectively. What height should all F1s display if the shortest and tallest plants were crossed, assuming environmental factors are the samearrow_forwardA) Describe the data you collect from the Purple 1 x Purple 2 cross. Predict the genotype of each of the parent plants. Explain your predictions using data from the experiment. B) Consider the offspring, the next generation (F1), from the Purple 1 x Purple 2 cross. What is the probability of a green stem plant? How do you know this? C) What is the probability in the F2 generation of a green stem offspring? Use a Punnett square(s) and quantitative data to explain your thinking. Upload your Punnett square(s).arrow_forwardDiscuss why Mendel's hybrid offspring begin to exhibit the original traits expressed by the P1 generation or the pure-breeding parents used in the original cross. What would happen if the hybrid offspring were allowed to breed without interference from Mendel for an extended period of time and the different ways plants can breed.arrow_forward
- Sequence mendels workarrow_forwardDoes this statement is a example of a phenocopy? Explain your reasoning. Q. Dwarf plants and mottled leaves in tomatoes are caused by separate genes that are linked.arrow_forwardSUBJECT: GENETICS Topic: Binomial Probability Consider albinism a trait to occur in a human family. If two parents are heterozygous for such trait, the probability of having a normally pigmented child is 3//4 and having an albino child is ¼. What is the probability that 2 will be normal and 1 will be albino?arrow_forward
- Practice question: I understand how the F1 progeny is found (by punnett square), but I do not get how they were able to get the F2 progeny (can i use a punnet square? How do i find these results?)arrow_forwardDescribe how Mendel cross-fertilized and self-fertilizedpea plants.arrow_forwardSUBJECT: GENETICS Topic: Probability 1. Consider albinism a trait to occur in a human family. If two parents areheterozygous for such trait, the probability of having a normally pigmented child is 3//4 and having an albino child is ¼. What is the probability that 2 will be normal and 1 will be albino?arrow_forward
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax