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प्रश्न
Give Technical Terms
The stage at which synapsis in chromosomes to form bivalents.
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उत्तर
Zygotene
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संबंधित प्रश्न
Name the sex chromosomes in human males and females
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.
Chromosomes are mainly made up of ______.
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________
Why gametes have a haploid number of chromosomes?
Give Reasons for the following
Chromosomes are the carriers of heredity.
(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.
Explain the Term Spindle
Name the following:
Microtubules form the bipolar spindle in which stage.
Give Technical Terms
The stage when sister chromosomes separate from their paired condition.
Multiple Choice Question:
How many chromosomes are found in a cell of humans?
Duplicated chromosomes are joined at a point termed ______.
Name the following:
Cells having a single set of chromosomes.
Name the following:
The number of chromosomes present in human gametes.
With the help of a neat labelled diagram, describe the structure of chromosome.
The thin thread-like structures found in the nucleus of each cell are called ______.
Which of the following is TRUE with respect to the genes which inherit together during crossing over?
A male gorilla has 48 chromosomes in each of its body cells. How many chromosomes will each of the sperms have?
