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प्रश्न
Complete the following sentence with appropriate word :
Chromosomes are _________ material.
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उत्तर
Chromosomes are Hereditary material.
संबंधित प्रश्न
State the exact location of the Centromere
Name the following:
The number of chromosomes present in a nerve cell of a human being.
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 |
Mention whether the following statement is (T) Or (F). Give reason in support of your answer.
The unfertilized human egg has half the number of chromosomes of the body cells.
Chromosomes are mainly made up of ______.
Choose the correct answer:
If after karyokinesis, cytokinesis does not occur, then result would be _____________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Mention the contribution of the scientist given below in the study of chromosome:
Waldeyer
Write a sentence of the following:
Centromere
How does colchicine act as mitotic poison? Is there any advantage of it?
Draw a duplicate chromosome and label its part.
Give Technical Terms
The stage at which synapsis in chromosomes to form bivalents.
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
State the Location: Chromosomes
Give Technical Term:
Transmission of characters through generations.
Nullisomy is represented by ______.
The region of the chromosome where the spindle fibres get attached during cell division ______
Some of the chromosomes have an elongated knob-like appendages known as telomere.
Identify the TRUE statements with respect to aneuploidy.
- When the chromosome number is not the exact multiple of the haploid set, it is described as aneuploidy.
- Aneuploidy is only addition of one or more chromosome(s) to the total number of chromosomes in a cell.
- Aneuploidy is further classified as hypoploidy and hyperploidy.
