HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following statements about chromosomal mutations are true? (Choose all that apply)
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Deletions delete a part of the chromosome.
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Duplications duplicate a part of the chromosome.
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Translocation happens when part of the chromosome breaks off and attaches to another chromosome.
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Inversions invert parts of chromosomes.
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Deletions delete the entire chromosome.
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Explanation:
Detailed explanation-1: -Answer and Explanation: The correct answer to this question is B. They always cause a change to an organism’s genotype. Regardless of the cause of the change, a DNA sequence is always altered when it mutates.
Detailed explanation-2: -The four main types of structural chromosomal aberrations are deletion, duplication, inversion, and translocation.
Detailed explanation-3: -(in-VER-zhun) A chromosomal defect in which a segment of the chromosome breaks off and reattaches in the reverse direction.
Detailed explanation-4: -Answer: D) The chromosomes are present within the nucleus. It carries genes and helps in inheritance. Also, it is composed of DNA in the form of protein and chromatin.
There is 1 question to complete.