Advertisements
Advertisements
Question
Mitochondria and plastids have their own DNA (genetic material). What is known about their fate during nuclear division like mitosis?
Solution
DNA present in mitochondria in plastids is called extrachromosomal DNA.
They are independent of the nuclear division of nuclear DNA. Hence, no effect of mitosis is seen on extrachromosomal DNA.
APPEARS IN
RELATED QUESTIONS
The following figure shows a stage of meiosis. Identify the stage.
Prophase-I is subdivided into five phases based on ______.
Meiosis occurs in organisms during ______.
The diagram shows a bivalent at prophase-I of meiosis. Which of the four chromatids can cross over?
In which phase of meiosis are the following formed? Choose the correct answer:
Synaptonemal complex ______
In which phase of meiosis are the following formed? Choose the correct answer:
Termination of chiasmata ______
The following events occur during the various phases of the cell cycle, Name the phase against the events.
Replication of DNA ______
Mitosis results in producing two cells which are similar to each other. What would be the consequence if the following irregularities occur during mitosis?
Nuclear membrane fails to disintegrate
Comment on the statement – Meiosis enables the conservation of specific chromosome number of each species even though the process per se, results in reduction of chromosome number.
What are the various stages of meiotic prophase-I? Enumerate the chromosomal events during each stage?
