PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Through blood transfusions and meiosis.
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Mutations in DNA and changes in structure or number of chromosomes.
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Missing chromosomes or premature egg splitting.
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Unhealthy environments and heredity.
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Detailed explanation-1: -Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection. Germline mutations (that occur in eggs and sperm) can be passed on to offspring, while somatic mutations (that occur in body cells) are not passed on.
Detailed explanation-2: -The other type of chromosomal mutation categories Chromosomal mutations II than consists of aneuploidy and polyploidy. The general category of these is called heteroploidy since they cause a mutation by changing the number of chromosomes present in the cell.
Detailed explanation-3: -Summary. Mutations are caused by environmental factors k nown as mutagens. Types of mutagens include radiation, chemicals, and infectious agents.
Detailed explanation-4: -Autosomal dominant inheritance occurs when a child receives a normal gene from one parent and a defective gene from the other parent. Autosomal recessive inheritance means that both parents must carry and pass on the faulty gene. More items