HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Variation is aided by crossing-over which occurs during meiosis.
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Meiosis ensures daughter cells receive one allele for each gene and half the number of chromosomes.
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Independent assortment provides a huge number of possible genetic combinations in daughter cells.
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Meiosis occurs often because it allows growth and repair of body tissues in multicellular organisms.
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Detailed explanation-1: -Meiosis is important for three main reasons: it allows sexual reproduction of diploid organisms, it enables genetic diversity, and it aids the repair of genetic defects.
Detailed explanation-2: -Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes. Meiosis also produces genetic variation by way of the process of recombination.
Detailed explanation-3: -Meiosis is necessary for sexual reproduction Genetic recombinations are possible from generation to generation Meiosis aftermates with mitosis for generation to generationThe same genetic system is passed on from generation to generation.
Detailed explanation-4: -The process of mitosis generates new cells that are genetically identical to each other. Mitosis helps organisms grow in size and repair damaged tissue. Some species of algae are capable of growing very quickly. The giant kelp Macrocystis pyrifera can grow as much as 30 centimeters (cm) in length in a single day.