Advertisements
Advertisements
Question
Genetic recombination occurs in ______ phase of prophase of meiosis-I.
Advertisements
Solution
Genetic recombination occurs in pachytene phase of prophase of meiosis-I.
Explanation:
Genetic recombination occurs when genetic material is exchanged between two different chromosomes or between different regions within the same chromosome.
APPEARS IN
RELATED QUESTIONS
The diagram below represents a stage during cell division. Study the same and then answer the questions that follow:
- Name the parts labelled 1, 2, and 3.
- Identify the above stage and give a reason to support your answer.
- Mention where in the body this type of cell division occurs.
- Name the stage prior to this stage and draw a diagram to represent the same.
All chromosomes are arranged parallel to equatorial plane of cell in ______ phase of mitosis.
For formation of plasma membrane, ______ molecules are necessary.
Choose the correct answer:
Which division takes most time?
Explain the Term Pachytene
Name the following:
The kind of division normally seen at the tip of the root and shoot system.
Name the Following
Name the stage during which nuclear membrane and nucleoli reappear.
Name the Following
Nuclear envelope and nucleoli reappear in which stage.
Give Technical Terms
The stage in mitosis when the nucleolus starts disappearing.
Complete the following sentence with appropriate word :
Colchicine arrests cell division at __________.
Multiple Choice Question:
Karyokinesis is the division of
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the terms in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Anaphase | (a) Chromosomes become arranged in a horizontal plane at the equator. |
| (ii) Prophase | (b) Daughter chromosomes move to opposite poles of the spindle. |
| (iii) Telophase | (c) Chromosomes become visible as fine, long threads. |
| (iv) Metaphase | (d) Chromosomes lose their distinctiveness and gradually become transformed into chromatin network. |
In which stage of mitosis the chromosomes align in an equatorial plate? How?
Give the sequence of the events occurring during the prophase of mitosis.
During Mitosis what is the position of chromatids in metaphase?
The phase of karyokinesis which is almost the reverse of prophase is ______.
Match List - I with List - II.
| List - I | List - II |
| A. Centromere | I. Mitochondrion |
| B. Cilium | II. Cell division |
| C. Cristae | III. Сell movement |
| D. Cell membrane | IV. Phospholipid Bilayer |
Choose the correct answer from the options given below:
What is the main function of the spindle fibres during mitosis?
