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प्रश्न
Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase
उत्तर
Metaphase
(During metaphase, each chromosome gets attached to the spindle by its centromere. The chromosomes line up in the centre at the equatorial plane.)
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संबंधित प्रश्न
What is the difference between chromatin fibre and chromosome?
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 |
During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.
Choose the correct answer:
Centromere is related to ________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
If after karyokinesis, cytokinesis does not occur, then result would be _____________
Differentiate between
Cytokinesis in plant and animal cell
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
Name the following:
Pairs of chromosomes, present in human egg cells.
Name the following:
The number of chromosomes present in human gametes.
Name the following:
A specific part of a chromosome that determine hereditary characteristics.
Identify the odd one:-
The number of chromosomes found in human beings is ______.
An inheritable change in the amount or the structure of a gene or a chromosome is called ______.
______ is a sudden permanent heritable change that can occur in the gene, in the chromosome or chromosome number.
Differentiate between X-chromosome and Y-chromosome with reference to –
- length of non-homologous regions
- type as per the position of the centromere
Small swellings on the surface of the chromosome are called______.
The two non-sister chromatids of a paired chromosome are attached to each other at ______ during the process of crossing over.
