PATHOLOGY MCQ
CELL DAMAGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increases the genetic variation
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reduces the diploid number to the haploid number
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increases the haploid number to the diploid number
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reduces the probability of mutations
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Detailed explanation-1: -Crossing over, as related to genetics and genomics, refers to the exchange of DNA between paired homologous chromosomes (one from each parent) that occurs during the development of egg and sperm cells (meiosis).
Detailed explanation-2: -The exchange of genetic material between homologous chromosomes is referred to as crossing over. At prophase I of the meiosis, the homologous pair of the chromosomes interact with each other and exchange part of the genetic materials. This process is called crossing-over.
Detailed explanation-3: -Crossing over is a process that happens between homologous chromosomes in order to increase genetic diversity. During crossing over, part of one chromosome is exchanged with another. The result is a hybrid chromosome with a unique pattern of genetic material.