
Concept explainers
Define the terms diploid and haploid, and explain how the chromosomal sex of an individual is determined.

To review:
The terms diploid and haploid along with the process of determining the chromosomal sex of an individual.
Introduction:
Most of the cells in the human body have 23 pair of chromosomes, that is, 46 chromosomes. Chromosomes are the compact structures formed by the double helix DNA (deoxyribonucleic acid) molecules wrapped around the histone proteins. DNA contains the genetic information inherited by the parents.
Explanation of Solution
Diploid is a condition of a cell where the cell has two sets of chromosomes obtained from parents. The total number of chromosomes in a cell is 46 out of which 23 are obtained from the mother and the remaining 23 are obtained from the father.
Haploid is the condition when the cells have half the number of chromosomes (that is 23). The gametes are the only cells that are present in a haploid state that in turn become diploid after the fertilization of both male and female gametes and result in a diploid zygote.
The female sex chromosome is represented as XX and the male sex is represented as XY. The diagram below depicts the combination of these chromosomes during fertilization and resulting in the formation of the male and female zygote:
The XX combination results in a female child whereas the combination of female X with the male Y chromosome results in a combination of XY, which leads to a male child.
Want to see more full solutions like this?
Chapter 20 Solutions
Human Physiology
- In 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_forwardThe Sentinel Cell: Nature’s Answer to Cancer?arrow_forward
- Molecular 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_forwardMolecular 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_forward
- Molecular 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_forwardMolecular Biology LIST three characteristics of DNA Polymerasesarrow_forward
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningHuman 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 LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College





