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Question
Define euploidy.
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Solution
When the chromosome number in a cell is the exact multiple of the primary basic number, then it is called euploidy.
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RELATED QUESTIONS
Match the events given in column A with the phase in mitotic cell division in column B.
| Column ‘A’ | Column ‘B’ | ||
| 1. | Chromosomes get arranged in a horizontal plane at the equator. |
a. | Anaphase |
| 2. | Daughter chromosomes move to the opposite poles of a spindle |
b. | Prophase |
| 3. | Chromosomes become visible as fine, long threads. |
c. | Telophase |
| 4. | Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. |
d. | Metaphase |
The component which is in the nuclei of cells and carries the hereditary characteristics is called ______.
Choose the correct answer:
Chromosomes appear at equator in ____________
Choose the correct answer:
The term 'chromosome' was coined by ___________
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
State how does meiosis maintains chromosome number in a species.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes are the thickest and shortest in telophase.
Multiple Choice Question
Chromosomal aberrations are caused by:
Read the following statements and select the correct option.
Statement I: The densely packed transcriptionally active, light staining region of chromatin is known as 'Heterochromatin'.
Statement II: The loosely packed, dark staining transcriptionally inactive region of chromatin is known as 'Euchromatin'.
In the human male, a sperm contains autosomes and ______.
