Which of the following explains why offsprings produced through sexual reproduction in animals are usually not identical to their parents?
It combines genetic material from two distinct parents
In sexual reproduction two parents, a male and a female, each form gametes by meiosis. Crossing over and the random sorting of chromosomes during meiosis make every gamete genetically different.
At fertilisation a male gamete and a female gamete fuse, so the zygote receives half of its DNA from each parent. This new combination of genetic material from two distinct parents is why offspring show variations and are usually not identical to either parent.
Traits are inherited from both parents, not from one dominant parent. Gametes are not genetically identical, because of meiosis. Reproduction involving only one parent with no genetic mixing is asexual reproduction, which produces nearly identical offspring.
Hence, It combines genetic material from two distinct parents.
Similar Questions
Which of the following options explains why menstruation does not occur if fertilization takes place during the menstrual cycle?
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Which of the following is the main function of the vas deferens in the male reproductive system?
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Important Questions from Reproduction
Cells of the tapetum possess dense cytoplasm and generally have ________.
Human chorionic gonadotropin:
Zygotes do not undergo reduction division immediately. They produce a multicellular body called a -
Which of the following organisms does NOT show asexual reproduction by means of fission?
The pollen needs to be transferred from the stamen to the stigma. If this transfer of pollen occurs in the same flower, it is referred to as __________ . On the other hand, if the pollen is transferred from one flower to another, it is known as ______
