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प्रश्न
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
विकल्प
telophase
anaphase
metaphase
prophase
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उत्तर
Chromosome is most coiled at (in mitosis) prophase
APPEARS IN
संबंधित प्रश्न
Name the following:
The number of chromosomes present in a nerve cell of a human being.
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.
Choose the best option out of the four alternatives a, b, c and d
Question 1:
The number of chromosomes in a certain type of cell division is halved. This kind of cell
division occurs in.
(a) Only testis
(b) Only ovary
(c) Both ovary and testis
(d) All body cells
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 ________________
Why gametes have a haploid number of chromosomes?
Differentiate between
Chromatin and Chromosome.
Differentiate between
Cytokinesis in plant and animal cell
(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 Zygotene
Complete the following sentence with appropriate word :
Polytene chromosomes are found in _________ of fly larvae.
Name the following:
Pair of genes responsible for a particular characteristic.
Define euploidy.
Some of the chromosomes have an elongated knob-like appendages known as telomere.
Generally, the recessive character is expressed only when present in a double recessive condition i.e. homozygous condition. However, a single recessive gene can express itself in human beings when the gene is present on ______
Define Aneuploidy.
After a mitotic cell division, a human female cell will have ______.
