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प्रश्न
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 |
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उत्तर
| Column ‘A’ | Column ‘B’ | ||
| 1. | Chromosomes get arranged in a horizontal plane at the equator. |
d. | Metaphase |
| 2. | Daughter chromosomes move to the opposite poles of a spindle |
a. | Anaphase |
| 3. | Chromosomes become visible as fine, long threads. |
b. | Prophase |
| 4. | Chromosomes lose their distinctiveness and gradually become transformed into a chromatin network. |
c. | Telophase |
संबंधित प्रश्न
State the exact location of the Centromere
The Chromatin material is formed forms of ______.
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.
Choose the best option out of the four alternatives a, b, c and d
Question 1:
The number of chromosomes in a certain type of cell division is halved. This kind of cell
division occurs in.
(a) Only testis
(b) Only ovary
(c) Both ovary and testis
(d) All body cells
Choose the correct answer:
In an interphase cell chromosome are as _____________
Choose the correct answer:
The term 'chromosome' was coined by ___________
Choose the correct answer:
Telocentric chromosomes are _________________
Give Technical Terms
The stage at which the formation of chiasmata occurs.
Multiple Choice Question:
The period between two successive mitotic divisions is
State the Location: Polytene chromosome
Write the functional activity of the following structure:
Chromosome
Name the following:
Cells having a single set of chromosomes.
Name the following:
Pairs of chromosomes, present in human egg cells.
Write the functional activity of the following structure:
Chromosomes
With the help of a neat labelled diagram, describe the structure of chromosome.
Nullisomy is represented by ______.
The thin thread-like structures found in the nucleus of each cell are called ______.
Some of the chromosomes have an elongated knob-like appendages known as telomere.
The sex of the newborn child is a matter of chance and neither of the parents may be considered responsible for it. What would be the possible fusion of gametes to determine the sex of the child?
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
