Concept explainers
Figure 26.8 At what stage dees the diploid zygote form?
- when the female cone begins to bud from the tree
- at fertilization
- when the seeds drop from the tree
- when the pollen tube begins to grow
Introduction:
A cell with a single set of chromosomes is known as haploid while the one with two sets of chromosomes is known as a diploid cell. Most of the cells in higher organisms are diploid except for the gametes that part in fertilization.
Answer to Problem 1VCQ
Correct answer:
The correct answer is option (b).
Explanation of Solution
Explanation for the correct answer:
Option (b) is given as fertilization. Fertilization is the process of fusion of male and female gamete to form a zygote. The gametes have a single set of chromosome and as they fuse the number of chromosomes in the zygote doubles and it becomes diploid. Hence, option (b) is correct.
Explanation for the correct answer:
Option (a) is given as when the female cone begins to bud from the tree. The female cone is diploid and if formed from a sporophyte leaf. Hence, option (a) is incorrect.
Option (c) is given as when the seeds drop from the tree. The seeds are already diploid as they contain an embryo that has formed from the developing zygote. Hence, option (c) is incorrect.
Option (d) is given as when the pollen tube begin to grow. The pollen tube develops from the intine of the pollen grain which is haploid so is the tube. Hence, option (d) is incorrect.
A diploid zygote is formed as a result of fusion of two haploid gametes during fertilization. The male and female gametes are haploid cells containing a single set of chromosomes while a zygote is diploid and contain a pair of each chromosome.
Want to see more full solutions like this?
Chapter 26 Solutions
Biology 2e
Additional Science Textbook Solutions
Campbell Biology (11th Edition)
Human Anatomy & Physiology (2nd Edition)
Biology: Life on Earth (11th Edition)
Microbiology with Diseases by Body System (5th Edition)
Genetic Analysis: An Integrated Approach (3rd Edition)
Campbell Biology: Concepts & Connections (9th Edition)
- What is the result of the following gram stain: positive ○ capsulated ○ acid-fast ○ negativearrow_forwardWhat type of stain is the image below: capsule stain endospore stain gram stain negative stain ASM MicrobeLibrary.org Keplingerarrow_forwardWhat is the result of the acid-fast stain below: Stock Images by Getty Images by Getty Images by Getty Images by Getty Image Getty Images St Soy Getty Images by Getty Images by Getty Images Joy Getty encapsulated O endosporulating negative ○ positivearrow_forward
- You have a stock vial of diligence 75mg in 3ml and need to draw up a dose of 50mg for your patient.how many mls should you draw up to give this dosearrow_forwardYou are recquired to administer 150mg hydrocortisone intravenously,how many mls should you give?(stock =hydrocortisone 100mg in 2mls)arrow_forwardIf someone was working with a 50 MBq F-18 source, what would be the internal and external dose consequences?arrow_forward
- We will be starting a group project next week where you and your group will research and ultimately present on a current research article related to the biology of a pathogen that infects humans. The article could be about the pathogen itself, the disease process related to the pathogen, the immune response to the pathogen, vaccines or treatments that affect the pathogen, or other biology-related study about the pathogen. I recommend that you choose a pathogen that is currently interesting to researchers, so that you will be able to find plenty of articles about it. Avoid choosing a historical disease that no longer circulates. List 3 possible pathogens or diseases that you might want to do for your group project.arrow_forwardnot use ai pleasearrow_forwardDNK dagi nukleotidlar va undan sintezlangan oqsildagi peptid boglar farqi 901 taga teng bo'lib undagi A jami H boglardan 6,5 marta kam bo'lsa DNK dagi jami H bog‘lar sonini topingarrow_forward
- One of the ways for a cell to generate ATP is through the oxidative phosphorylation. In oxidative phosphorylation 3 ATP are produced from every one NADH molecule. In respiration, every glucose molecule produces 10 NADH molecules. If a cell is growing on 5 glucose molecules, how much ATP can be produced using oxidative phosphorylation/aerobic respiration?arrow_forwardIf a cell is growing on 5 glucose molecules, how much ATP can be produced using oxidative phosphorylation/aerobic respiration?arrow_forwardHow do i know which way the arrows go?arrow_forward
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781337408332Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning