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प्रश्न
Complete the following sentence with appropriate word :
The pairing of homologous chromosomes is called _______.
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उत्तर
The pairing of homologous chromosomes is called Synapsis.
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संबंधित प्रश्न
State the exact location of the Centromere
Give appropriate biological or technical terms for the following :
The condition in which a pair of chromosomes carries similar alleles of a particular character.
Correct the following statement if there is any mistake:
If there are 46 chromosomes in a cell, there will be 23 chromatin fibres inside the nucleus during interphase.
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 |
Fill in the blank
The _______ (s) are surrounded by radiating rays called aster
Answer the following question in your own words.
What is meant by ‘chromosome’?
Choose the correct answer:
During mitosis which of the following disintegrate ___________
Choose the correct answer:
Minimum coiling in chromosome is at ________________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Choose the correct answer:
Chromosomes largely consist of _______________
What is the importance of meiosis?
Explain the Term Spindle
Give Technical Terms
The stage at which chromosomes occurs reach the opposite poles.
Multiple Choice Question:
The disappearance of spindle and uncoiling of chromosomes takes place in
Duplicated chromosomes are joined at a point termed ______.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Complete the following sentence with appropriate word:
The chromosomal theory of inheritance was proposed by ____________in 1902.
The thin thread-like structures found in the nucleus of each cell are called ______.
Small swellings on the surface of the chromosome are called______.
