ANIMAL REPRODUCTION AND DEVELOPMENT
ASEXUAL REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cell division happens where one cell produces two exact copies
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Reproduction happens very quickly
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Only one parent needed
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Fertilization of an egg by a sperm
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Detailed explanation-1: -Sexual reproduction is a mode of reproduction in which there is an involvement of two different sexes. Males produce male gametes and female produce female gametes. Both these gametes are haploid in nature as they are a result of meiotic cell division. Sexual reproduction also takes place in plants.
Detailed explanation-2: -Parthenogenesis is reproduction without fertilization, an ovum developing into a new individual without fertilization by a sperm. In vertebrates, parthenogenetic “species” are the result of modification of ovum development, usually changes in meiosis, leading to eggs produced with multiple sets of chromosomes.
Detailed explanation-3: -When sperm fertilizes (meets) an egg, this fertilized egg is called a zygote (ZYE-goat). The zygote goes through a process of becoming an embryo and developing into a fetus. The male reproductive system and the female reproductive system both are needed for reproduction.
Detailed explanation-4: -Sexual reproduction occurs when the sperm from the male parent fertilizes an egg from the female parent, producing an offspring that is genetically different from both parents.