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Question
Synthesis phase in the cell cycle is called so, because of the synthesis of more:
A. RNA
B. RNA and proteins
C. DNA
D. Glucose
Solution
DNA
(DNA synthesis occurs during the S-phase of the cell cycle.)
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RELATED QUESTIONS
What is the number of chromosomes in the gametes of human beings?
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 |
State the difference between:
Chromosome and chromatid:
During the pairing of chromosomes in meiosis, the ________ chromosomes come to lie side by side.
Choose the correct answer:
Chromosomes number is halved in _____________
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During mitosis which of the following disintegrate ___________
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Chromosomes number is halved in ____________
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Thick short chromosomes can be observed at (in mitosis) ___________
How does colchicine act as mitotic poison? Is there any advantage of it?
Give Reasons for the following
Chromosomes are the carriers of heredity.
Give Technical Terms
The phase of meiosis at which homologous chromosomes are separated.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Chromosomes other than sex-chromosomes are autonomous.
Multiple Choice Question:
The disappearance of spindle and uncoiling of chromosomes takes place in
Duplicated chromosomes are joined at a point termed ______.
Write the functional activity of the following structure:
Chromosome
With the help of a neat labelled diagram, describe the structure of chromosome.
The loss of one or more chromosomes in ploidy is called ______.
What' does 'P' and 'Q' represent in the following diagram of X and Y chromosomes? Select the correct option representing, its appropriate description.
After a mitotic cell division, a human female cell will have ______.
The female gamete/egg cell of a human cell will have ______.
