Advertisements
Advertisements
Question
Identify each part in a flowering plant and write whether it is haploid (n) or diploid (2n).
Ovary ———————————
Anther ———————————
Egg ———————————
Pollen ———————————
Male gamete ———————————
Zygote ———————————
Solution
Ovary Diploid (2n)
Anther Diploid (2n)
Egg Haploid (n)
Pollen Haploid (n)
Male gamete Haploid (n)
Zygote Diploid (2n)
APPEARS IN
RELATED QUESTIONS
Explain the significance of meiocytes in a diploid organism.
Explain the importance of syngamy and meiosis in a sexual life cycle of an organism.
Differentiate between gametogenesis from embryogenesis.
The terms homothallic and monoecious are used to denote ______.
Fusion of unrelated gametes is called ______.
Choose the correct statements.
Given below are a few statements related to external fertilization.
- The male and female gametes are formed and released simultaneously
- Only a few gametes are released into the medium
- Water is the medium in a majority of organisms exhibiting external fertilization
- Offspring formed as a result of external fertilization have better chance of survival than those formed inside an organism
Which of the following statements is true of date palm?
In meiosis, division is ______.
What is true for cleavage?
Which of the following process is associated with a change in the cellular DNA amount?
What is true about the change in fertilized eggs of humans?
Pre-fertilization events include the following?
- Gametogenesis
- Zygotic embryogenesis
- Gamete transfer
- Homogametic union
- Heterogametic union
The correct combination is ______
Maximum number of chromosomes in gametes are presented in ______.
Rearrange the following events of sexual reproduction in the sequence they occur in a flowering plant:
Embryogenesis, Fertilisation, Gametogenesis, Pollination.
Is the presence of large number of chromosomes in an organism a hindrance to sexual reproduction? Justify your answer by giving suitable reasons.
Which of the followings are monoecious and dioecious organisms?
a. | Earthworm | ______ |
b. | Chara | ______ |
c. | Marchantia | ______ |
d. | Cockroach | ______ |
In haploid organisms that undergo sexual reproduction, name the stage in the life cycle when meiosis occurs. Give reasons for your answer.
Do all the gametes formed from a parent organism have the same genetic composition (identical DNA copies of the parental genome)? Analyse the situation with the background of gametogenesis and provide or give suitable explanation.
Define perisperm.