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प्रश्न
Differentiate between
Gametic meiosis and Zygotic meiosis.
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उत्तर
| Gametic meiosis | Zygotic meiosis |
| When the reproductive cells of a diploid organism undergoes meiosis to produce haploid gametes, it is called gametic meiosis. | Some algae and fungi are haploid adults. They produce haploid gametes which upon fertilization form a diploid zygote. This‘zygote undergoes meiosis to form haploid spores, which on repeated mitotic division form the adult body. |
संबंधित प्रश्न
Name the sex chromosomes in human males and females
Humans have 46 chromosomes. Their sperms and eggs will have ______ chromosomes each.
Choose the correct answer:
Chromosome is most coiled at (in mitosis) ____________
Choose the correct answer:
Chromosomes number is halved in ____________
Mention the contribution of the scientist given below in the study of chromosome:
Waldeyer
Choose the correct answer:
Thick short chromosomes can be observed at (in mitosis) ___________
Choose the correct answer:
Chromosomes largely consist of _______________
A V-shaped chromosome is ______.
Differentiate between
Chromatin and Chromosome.
Explain the Term Chromosomes
Duplicated chromosomes are joined at a point termed ______.
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| Genetics | Chromosomes are similar in size and shape. |
| Autosomes | The alternative forms of a gene. |
| Recessive gene | Study of laws of inheritance of characters |
| Allele | A gene that can express only when in a similar pair. |
| Homologous chromosomes | Chromosomes are other than the pair of sex chromosomes. |
Define euploidy.
The thin thread-like structures found in the nucleus of each cell are called ______.
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?
After a mitotic cell division, a human female cell will have ______.
The two non-sister chromatids of a paired chromosome are attached to each other at ______ during the process of crossing over.
Rewrite the correct form of the statement by changing the first or last word only:
Duplicated chromosomes remain attached at a point termed as centrosome.
