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Question
Write a sentence of the following:
Telomere
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Solution
Telomere - The ends of the chromosomes is termed as telomere.
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RELATED QUESTIONS
Chromosomes get aligned at the centre of the cell during:
A. Metaphase
B. Anaphase
C. Prophase
D. Telophase
Given below is a schematic diagram of a portion of DNA.
- How many strands are shown in the diagram?
- How many nucleotides have been shown in each strand?
- Name the parts numbered 1, 2, 3, 4 and 5 respectively.
- Name the DNA unit constituted by the parts 1, 2, 3 collectively.
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 |
Chromosomes are mainly made up of ______.
Choose the correct answer:
Centromere is related to _______________
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Mention the contribution of the scientist given below in the study of chromosome:
Strasburger
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
Synthesis phase in the cell cycle is called so for the synthesis of more of
Why gametes have a haploid number of chromosomes?
Give Reasons for the following
The meiosis is called reductional division
Give Technical Terms
The stage when sister chromosomes separate from their paired condition.
Give Technical Terms
The stage at which the formation of chiasmata occurs.
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
Explain the structure of chromosomes with labelled diagram.
Small swellings on the surface of the chromosome are called______.
Define Aneuploidy.
The two non-sister chromatids of a paired chromosome are attached to each other at ______ during the process of crossing over.
