Concepts of Biology
1st Edition
ISBN: 9781938168116
Author: Samantha Fowler, Rebecca Roush, James Wise
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 8, Problem 5RQ
Imagine that you are performing a cross involving seed texture in garden pea plants. You cross true-breeding round and wrinkled parents to obtain F1 offspring. Which of the following experimental results in terms of numbers of plants are closest to what you expect in the F2 progeny?
a. 8lOroundseeds
b. 8lOwrinkledseeds
c. 405:395 round seeds:wrinkled seeds
d. 610:190 round seeds:wrinkled seeds
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Suppose that in barley plants, the allele for tall stalks is dominant over short stalks and the allele for wide leaves is dominant over thin leaves. What would be the best way to determine the genotype of a barley plant with a tall stalk and wide leaves?
Choose 1 answer:
A.Perform a testcross with a barley plant that has a tall stalk and thin leaves.
B.Perform a testcross with a known heterozygous barley plant .
C. Perform a testcross with a barley plant that has a short stalk and thin leaves.
D. Perform a testcross with a barley plant that has a tall stalk and wide leaves.
Imagine you are performing a cross involving seed color in garden pea plants. What F1 offspring would you expect if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green. a. 100 percent yellow-green seeds b. 100 percent yellow seeds c. 50 percent yellow, 50 percent green seeds d. 25 percent green, 75 percent yellow seeds
Assume the height in a particular plant is determined by two pairs of unlinked polygenes, each effective allele contributes 5cm to a base height of 10cm.a. What are the heights of each parent?b. What height is to be expected in the F1 if there are no environmental effects?c. What is the expected phenotypic ratio in the F2
Chapter 8 Solutions
Concepts of Biology
Ch. 8 - Figure 8.9 In pea plants, round peas (R) are...Ch. 8 - Figure 8.10 In pea plants, purple flowers (P) are...Ch. 8 - Figure 8.16 What ratio of offspring would result...Ch. 8 - Imagine that you are performing a cross involving...Ch. 8 - Imagine that you are performing a cross involving...Ch. 8 - The observable traits expressed by an organism are...Ch. 8 - A recessive trait will be observed in individuals...Ch. 8 - What are the types of gametes that can be produced...Ch. 8 - What is the reason for doing a test cross? a. to...Ch. 8 - If black and white true-breeding mice are mated...
Ch. 8 - The ABO blood groups in humans are expressed as...Ch. 8 - In a cross between a homozygous red-eyed female...Ch. 8 - When a population has a gene with four alleles...Ch. 8 - Describe one of the reasons that made the garden...Ch. 8 - Use a Punnett square to predict the offspring in a...Ch. 8 - Use a Punnett square to predict the offspring in a...Ch. 8 - Can a male be a carrier of red-green color...Ch. 8 - Could an individual with blood type O (genotype...
Additional Science Textbook Solutions
Find more solutions based on key concepts
Olympic ice skaters are able to spin at about 5 rev/s. (a) What is their angular velocity in radians per second...
College Physics
Why is an endospore called a resting structure? Of what advantage is an endospore to a bacterial cell?
Microbiology: An Introduction (13th Edition)
Body, Heal Thyself The precision of mitotic cell division is essential for repairing damaged tissues like those...
Biology: Life on Earth with Physiology (11th Edition)
Review the Chapter Concepts list on page 422. These all center on quantitative inheritance and the study and an...
Essentials of Genetics (9th Edition) - Standalone book
Raw Oysters and Antacids: A Deadly Mix? The highly acidic environment of the stomach kills most bacteria before...
Microbiology with Diseases by Body System (5th Edition)
Knowledge Booster
Learn more about
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
- Imagine that you are performing a cross involving seed color in garden pea plants. What traits would you expect to observe in the F1 offspring if you cross true-breeding parents with green seeds and yellow seeds? Yellow seed color is dominant over green. a. only yellow-green seeds b. only yellow seeds c. 1:1 yellow seeds:green seeds d. 1:3 green seeds:yellow seedsarrow_forwardA 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_forwardshows the results of a cross between a tall pea plant and a short pea plant. a. What phenotypes and proportions will be produced if a tall F1 plant is backcrossed to the short parent? b. What phenotypes and proportions will be produced if a tall F1 plant is backcrossed to the tall parent?arrow_forward
- You inspect an ear of corn and find the following number of kernels: 461 red and starch, 142 red and sweet, 156 yellow and starchy and 53 yellow and sweet. a. What genotype did the parent corn plants probably have? b. Support your answer by working out the cross with a Punnett squarearrow_forwardA gardener performs a monohybrid cross on two heterozygous orange-fruited tomato plants. Plants expressing the recessive phenotype yield yellow tomato fruits. What percentage of the offspring will produce yellow tomatoes? A-075% B-50% C-100% D-25%arrow_forwardSuppose in a strain of soybeans, high oil (H) content in the seeds is dominant to low oil content and four seeds (E) in a pod is dominant to two seeds in a pod. A farmer crosses two soybean plants, both with high oil content and four seeds per pod. The resulting F1 offspring have a phenotypic ratio of 9:3:3:1 (High oil/four seeds: High oil/ two seeds: Low oil / four seeds : Low oil / two seeds). What genotype were the parent plants?arrow_forward
- Assume independent assortment and start with a plantthat is dihybrid A/a ; B/b:a. What phenotypic ratio is produced from selfing it?b. What genotypic ratio is produced from selfing it?c. What phenotypic ratio is produced from testcrossingit?d. What genotypic ratio is produced from testcrossingitarrow_forwardUse the image to observe the results of a cross between a tall pea plant and a short pea plant. What phenotypes and proportions will be produced for the two crosses? P generation Tall Tt Gametes Tt F₁ generation T Fertilization Tt t Tall tt Short Tt Tall tt tt Short Conclusion (a) Short (b) Genotypic ratio 1Tt:1tt Phenotypic ratio 1 tall: 1 short Tall F₁ progeny backcrossed to the short parent Answer Bank one-fourth tall and three-fourths short one-half tall and one-half short three-fourths tall and one-fourth short Tall F₁ progeny backcrossed to the tall parent all tall all shorarrow_forwardGregor Mendel proposed the law of independent assortment based on the observation that dihybrid crosses of heterozygous individuals produced progeny in a 9:3:3:1 ratio. For this observation to hold, which assumption must be true? A. The traits are governed by genes on different chromosomes. B. The traits are governed by genes on the same chromosome. C. The traits are governed by genes with only two alleles. D. The traits are governed by genes with only three alleles.arrow_forward
- A pure strain of Mendel’s peas, dominant for all seven of his independently assorting genes, was testcrossed. (a) How many different kinds of gametes could each of the parents produce? (b) How many different gametes could the F1 produce? (c) If the F1, was testcrossed, how many phenotypes would be expected in the offspring and in what proportions? d) How many genotypes would be expected in the F2? (e) How many combinations of F1 gametes are theoretically possible (considering, e.g., AABBCCDDEEFFGG sperm nucleus x aabbccddeefigg egg nucleus a different combination than AABBCCDDEEFFGG egg nucleus x aabbccddeeflgg sperm nucleus)? (f) How many different kinds of matings could theoretically be made among the F2?arrow_forwardIn peas, tall is dominant over dwarf. If a plant homozygous for tall is crossed with one homozygous for dwarf : a. What will be the genotype(s) (use the initial of your last name) and phenotype (s) of the F1 plants? b. If the F1 is grown the next season, predict the possible genotypes and phenotypes. c. If you cross the F1 to the tall parent, what phenotype will result of the cross? What will be the ratio of the genotype? d. If you cross the F1 to the short parent, what phenotype will result of the cross? What will be the ratio of the genotype?arrow_forwardHibiscus plants have different varieties of flowers. In an instance, both the red and white flowers showed that they are incompletely dominant with each other. What will happen if these two varieties are bred? Explain. A) the flowers will have a pink color B) the flowers will grow more petals C) the flowers will have red and white patches D) the flowers will have a red colorarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
How to solve genetics probability problems; Author: Shomu's Biology;https://www.youtube.com/watch?v=R0yjfb1ooUs;License: Standard YouTube License, CC-BY
Beyond Mendelian Genetics: Complex Patterns of Inheritance; Author: Professor Dave Explains;https://www.youtube.com/watch?v=-EmvmBuK-B8;License: Standard YouTube License, CC-BY