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प्रश्न
Synthesis phase in the cell cycle is called so for the synthesis of more of
विकल्प
RNA
RNA and proteins
DNA
Glucose
उत्तर
DNA
APPEARS IN
संबंधित प्रश्न
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
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.
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:
If after karyokinesis, cytokinesis does not occur, then result would be _____________
Choose the correct answer:
Minimum coiling in chromosome is at ________________
What is the importance of meiosis in creating variations?
State how does meiosis maintains chromosome number in a species.
(i) Draw a neat labeled diagram to show the metaphase stage of mitosis in an animal cell having ‘6’ chromosome.
(ii) How many daughter cells are formed at the end of mitosis and at the end of meiosis?
(iii) With reference to cell division explain the following terms:
(Chromatid, Centromere, Haploid).
(iv) Name the type of cell division that occurs during:
1. Growth of shoot 2. Formation of pollen grains.
3. Repair of worn out tissues.
Give Technical Terms
The stage at which the formation of chiasmata occurs.
Complete the following sentence with appropriate word :
The spindle fibers are made of _______.
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
State the Location: Polytene chromosome
Give Reason:
The Law of independent assortment holds good for the gene pairs that occur in different pairs of chromosomes.
Name the following:
The diploid number for cell of man.
Name the following:
Pair of genes responsible for a particular characteristic.
Give Technical Term:
Transmission of characters through generations.
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?
