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प्रश्न
Name the phenomenon where the female gamete directly develops into a new organism with an avian example.
उत्तर
Parthenogenesis is the phenomenon where the unfertilized female gamete (egg) develops into a new individual,
e.g. Turkey
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संबंधित प्रश्न
Give the importance of variation in survival of species.
Write one difference between asexual and sexual mode of reproduction.
Describe the process of fertilisation in human beings.
Write the importance of sexual reproduction in nature.
What is the other name of sex cells?
Name two plants which reproduce by sexual reproduction method and two plants which reproduce by asexual reproduction methods.
Distinguish between the following pair of terms:
Budding and Regeneration.
Mention the changes which occur during adolescence in humans.
“The chromosomes number of the sexually reproducing parents and their offspring is the same.” Justify this statement.
How is the chromosome number maintained in sexually reproducing organisms?
Answer the following question.
Explain the process of fertilization in humans.
Animals which give birth to young ones directly are named as ______.
What are the different stages of sexual reproduction?
Give reason for the following:
Some organisms like honey bees are called parthenogenetic animals
Match column -1 with column - II and select the correct option.
| Column - I | Column - II | ||
| 1. | Seminal vesicles | a. | Membranous urethra |
| 2. | Scrotum | b. | Thermoregulatory |
| 3. | Tunica vaginalis | c. | Fibro muscular pouches |
| 4. | Cowper's gland | d. | Peritoneal covering |
Oestrus cycle is seen in ______.
Sexual reproduction can be grouped into ______ distinct states.
What are oviparous animals?
Zygote develop a thick wall that is resistant to dessication and damage is present in ______.
