Fertilization
Biology ⇒ Reproduction and Development
Fertilization starts at 7 and continues till grade 12.
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Describe how fertilization leads to genetic variation in sexually reproducing organisms.
Describe the acrosome reaction and its significance in fertilization.
Describe the main steps involved in the process of fertilization in mammals.
Describe the role of calcium ions during the fertilization process in animal eggs.
Describe the role of the egg plasma membrane in the fertilization process.
Describe the role of the sperm tail during fertilization.
Explain the difference between external and internal fertilization, giving one example of each.
Explain the importance of species-specific recognition during fertilization.
Which of the following animals typically exhibit external fertilization? (1) Birds (2) Mammals (3) Amphibians (4) Reptiles
Which of the following best defines fertilization in animals? (1) The fusion of two sperm cells (2) The fusion of male and female gametes (3) The division of a zygote (4) The implantation of an embryo
Which of the following best describes the genetic composition of a zygote? (1) Haploid (2) Diploid (3) Triploid (4) Tetraploid
Which of the following is a barrier to fertilization in flowering plants? (1) Stigma (2) Style (3) Ovule integuments (4) All of the above
During fertilization, the fusion of the male and female pronuclei results in the formation of a _______.
Fertilization in humans usually occurs in the _______.
Fill in the blank: In angiosperms, the fusion of a sperm cell with two polar nuclei forms the _______.
Fill in the blank: In animals, the process that prevents more than one sperm from fertilizing an egg is called the _______ block to polyspermy.
True or False: In humans, fertilization can occur in the uterus.
True or False: In mammals, fertilization restores the diploid number of chromosomes.
True or False: In most animals, fertilization triggers the completion of meiosis in the egg.
True or False: Polyspermy refers to the entry of more than one sperm into an egg during fertilization.
