Concept explainers
Videos
Introduction:
A cross that involves hybrids for a single trait is called a monohybrid cross. Punnett developed a method to predict the possible offspring of a cross between two known genotypes. It is easier to keep a track of the possible genotypes involved in a cross.
Answer to Problem 14A
Correct answer :
The correct answer is option C. 1:1 black to white
Explanation of Solution
Explanation/justification for the correct answer:
Option C. 1:1 black to white−A Bb guinea pig will produce two types of gametes- male and female- each with either the B allele or b allele. A bb guinea pig will produce two types of gametes- male and female- both with b allele. If a black guinea pig ( Bb ) crossed with a white guinea pig ( bb ), there are only two possible genotypes; Bb and bb. So the resulting
This can be checked by drawing a Punnett square as shown below.
| B | b | |
| b | Bb | bb |
| b | Bb | bb |
Hence this is the correct option.
Explanation for incorrect answer:
Option A. 0:1 black to white- If a black guinea pig ( Bb ) crossed with a white guinea pig ( bb ), there are only two possible genotypes; Bb and bb. So the resulting phenotypic ratio will be 1: 1 black to white as equal number of black and white guinea pigs will be produced. Two black guinea pigs will be produced. Hence this is not the correct option.
Option B. 1:0 black to white- If a black guinea pig ( Bb ) crossed with a white guinea pig ( bb ), there are only two possible genotypes; Bb and bb. So the resulting phenotypic ratio will be 1: 1 black to white as equal number of black and white guinea pigs will be produced.Two white guinea pigs will be produced.Hence this is not the correct option.
Option D. 3:1 black to white-If a black guinea pig ( Bb ) crossed with a white guinea pig ( bb ), there are only two possible genotypes; Bb and bb. So the resulting phenotypic ratio will be 1: 1 black to white as equal number of black and white guinea pigs will be produced.Three black guinea pigs will not be produced.Hence this is not the correct option.
Chapter 10 Solutions
Biology Illinois Edition (Glencoe Science)
Additional Science Textbook Solutions
Microbiology with Diseases by Body System (5th Edition)
Campbell Biology (11th Edition)
Concepts of Genetics (12th Edition)
Human Physiology: An Integrated Approach (8th Edition)
Anatomy & Physiology (6th Edition)
Cosmic Perspective Fundamentals
- What are functions of cuboidal cells in the kidney? Select all that apply. Concentration of gases Dilution of chemicals Secretion of molecules Nutrition to tissues Support of tissues Absorption of moleculesarrow_forwardquestion1 In plants, epithelial tissue is only found as the outermost cell layer and acts as a barrier. In humans, epithelial tissue is found inside the body as well as on the surface. What function(s) does/do epithelial tissue carry out in humans? Select all that apply. Waste storage Filtration Oxygen transport Protection Diffusion Osmosis Absorptionarrow_forwardWhat words best describes this organism? a. Unicellular/nonmotile Ob. unicellular/motile c. colonial/nonmotile d. colonial/motile e. multicelluar O f. siphonous g. none of thesearrow_forward
- Identify the phylum or class. a. Euglenophyta b. Dinoflagellata c. Bacillariophyceae d. Oomycetes e. Phaeophyceae O f. Myxomycota g. Xanthophyceae ○ h. Chrysophyceae i. Dictyosteliomycota O j. Rhodophyta Ok. Chlorophyceaens I. Charophyceaensarrow_forwardWhat is produced inside the indicated structure (Fucus). a. eggs O b. antheridia ○ c. sperm d. zygotes e. none of thesearrow_forwardGreen Algae, as a group, is actually paraphyletic with one subgroup more closely related to higher plants than the other. Which of the following green algae groups is more closely related to higher plants: a. Charophyceans b. Chlorophyceans c. Rhodophyta d. Xanthophyceansarrow_forward
- A single-celled green algal genus that is motile with 2 flagella, has a cup shaped chloroplast, and an eyespot: a. Volvox b. Chlamydomonas c. Euglena d. Codiumarrow_forwardA[n] ___ is produced by members of the Myxomycota when there is a lack of moisture. a. plasmodiocarp b. aethalium c. sclerotium d. plasmodiumarrow_forwardWhich of the following is not true about the life-cycle of Fucus. a. 8 eggs per oogonium b. 64 sperm per antheridium c. eggs are flagellated d. sperm are flagellatedarrow_forward
- Green Algae, as a group, is actually paraphyletic with one subgroup more closely related to higher plants than the other. Which of the following green algae groups is more closely related to higher plants: a. Charophyceans b. Chlorophyceans c. Rhodophyta d. Xanthophyceansarrow_forwardCertain toxic terpenoids in this group is thought to deter herbivory but may also have some anti-tumor activity? a. green algae b. brown algae c. red algae d. golden algae e. none of thesearrow_forwardIn the cellular slime molds, the most common phase is: a. plasmodium b. pseudoplasmodial c. single cells as myxamoebae d. moundingarrow_forward
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education