Nondisjunction in Meiosis — Overview & Impact on Cells
Read this topicExplanations 3
- (Video) Visualizing Nondisjunction by Jack Lewis This video describes meiotic nondisjunction, a process where chromosomes don't split correctly during anaphase. This results in …
By Aaron Lauer, Alex Federspiel, Deena Hauze, Mario Janakis
- What's Nondisjunction? Nondisjunction is an error during meiosis that creates eggs or sperm cells that have the wrong number of chromosomes. Alright, recall that meiosis is the …
By Deena Hauze, Alex Federspiel, Mario Janakis
- Nondisjunction During cell division, DNA is duplicated and then divided equally into two daughter cells. This way, each new cell contains all the genetic information it needs to…
By Gabi Slizewska, Deena Hauze, Mario Janakis, Caroline K
Problems 20
- When does nondisjunction occur?
- The diagram above shows nondisjunction during meiosis I. After fertilization, two cells would have poop‾\underline{\phantom{poop}}poop copies of the chromosome and the other tw…
- A male is born with XYY Syndrome (meaning he has an extra Y chromosome). Did the nondisjunction which resulted in the male's genotype occur in the cells of the mother or father?…
- When nondisjunction occurs during mitosis, which structures fail to separate?
- When nondisjunction occurs during mitosis, it results in mosaicism. What is mosaicism?
- Which of the following cells shows trisomy?
- Which of the following cells shows monosomy?
- When nondisjunction occurs during meiosis I, which structures fail to separate?
- The diagram above is called a karyotype. It shows the chromosomes that an individual possesses. In which chromosome did nondisjunction occur?
- What is shown in the cell above?
- Which of the following daughter cells is the result of nondisjunction in meiosis I?
- Down Syndrome is a genetic condition caused by an extra chromosome 21. What type of cellular error leads to this?
- Which of the following describes the figure above?
- What likely occurred in the cell division pictured above?
- What is the best definition of what happens during nondisjunction?
- Fill in the blank: Nondisjunction creates an error in the number of woah‾\underline{\phantom{woah}}woah.
- Fill in the blank: In mitosis, nondisjunction causes one daughter cell to have an extra chromosome, called woah‾\underline{\phantom{woah}}woah, while the other daughter cell ha…
- Fill in the blank: In meiosis, nondisjunction happens in anaphase II when woah‾\underline{\phantom{woah}}woah do not separate correctly.
- Fill in the blank: An imbalance of chromosomes in a cell is called woah‾\underline{\phantom{woah}}woah.
- When can nondisjunction occur?