Introduction:
Parthenogenesis is a mode of asexual reproduction in which an egg develops into an embryo without fertilization.

Answer to Problem 1TYU
Correct answer:
Only a single parent is required for parthenogenesis, as fertilization is not needed. Hence, fertilization is not required for the development of an egg into an embryo. Therefore, option (D) is correct.
Explanation of Solution
Reason for the correct statement:
Parthenogenesis is observed in lower plants and animals. The egg or gamete produced by the female develops into a complete organism without fusion with the male gamete.
Option (D) is given as “An egg develops without being fertilized”.
“In parthenogenesis, an egg develops without being fertilized”. Thus, it is the right answer.
Hence, option (D) is correct.
Reasons for the incorrect statements:
Option (A) is given as “An individual may change its sex”.
An individual changing its sex is not parthenogenesis; it is called sequential hermaphroditism. Therefore, it is a wrong answer.
Option (B) is given as “Groups of cells grow into new individual”.
In parthenogenesis, a single egg develops into a complete organism, not from the groups of cells. Therefore, it is the wrong answer.
Option (C) is given as “An organism is first a male and then a female”.
An organism that develops as a male, and then develops into a female is called a protandrous hermaphrodite. Therefore, it is the wrong answer.
Hence, options (A), (B) and (C) are incorrect.
Parthenogenesis is an asexual mode of reproduction in which an organism develops from an unfertilized egg.
Want to see more full solutions like this?
Chapter 36 Solutions
CAMPBELL BIOLOGY IN FOCUS (LL)-W/MOD.MA
- please fill in the empty sports, thank you!arrow_forwardIn one paragraph show how atoms and they're structure are related to the structure of dna and proteins. Talk about what atoms are. what they're made of, why chemical bonding is important to DNA?arrow_forwardWhat are the structure and properties of atoms and chemical bonds (especially how they relate to DNA and proteins).arrow_forward
- The Sentinel Cell: Nature’s Answer to Cancer?arrow_forwardMolecular Biology Question You are working to characterize a novel protein in mice. Analysis shows that high levels of the primary transcript that codes for this protein are found in tissue from the brain, muscle, liver, and pancreas. However, an antibody that recognizes the C-terminal portion of the protein indicates that the protein is present in brain, muscle, and liver, but not in the pancreas. What is the most likely explanation for this result?arrow_forwardMolecular Biology Explain/discuss how “slow stop” and “quick/fast stop” mutants wereused to identify different protein involved in DNA replication in E. coli.arrow_forward
- Molecular Biology Question A gene that codes for a protein was removed from a eukaryotic cell and inserted into a prokaryotic cell. Although the gene was successfully transcribed and translated, it produced a different protein than it produced in the eukaryotic cell. What is the most likely explanation?arrow_forwardMolecular Biology LIST three characteristics of origins of replicationarrow_forwardMolecular Biology Question Please help. Thank you For E coli DNA polymerase III, give the structure and function of the b-clamp sub-complex. Describe how the structure of this sub-complex is important for it’s function.arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning


