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Anna35 [415]
3 years ago
13

Cystic fibrosis is an example of a genetic disease caused by the deletion of a nucleotide. what is the term for this type of mut

ation?
Biology
1 answer:
Molodets [167]3 years ago
8 0
This is called a frameshift mutation....

Losing one nucleotide would cause the entire framework of codons (the 3 nucleotide set that codes for the amino acids) to move off by 1 which results in likely completely different amino acids being called for when the protein is built. 

In the case of CF, the normal CFTR gene which codes for Cystic Fibrosis Transmembrane Receptor - a membrane protein, with a point mutation would not be made properly and is therefore not placed into the membrane of the cells of the offspring - this protein is very important in moving sodium into the cell - if this is messed up it results in disease.

Note that CF can result in a number of different types of mutations to the CFTR gene...a frameshift mutation is just one way.
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with haploid or diploid set of chromosomes. True

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Features:

1. A haploid cell has only one set of chromosomes (n), while diploid cells have two sets of chromosomes (2n).

2. In humans, somatic cells are diploid, while gametes are haploid.

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4. Mitosis produces 2 identical daughter cells, where both stem and daughter cells are diploid. In meiosis, a diploid cell divides twice to produce 4 haploid daughter cells.

5. Humans and most animals are considered diploid organisms, while algae and fungi are examples of organisms that are haploid in most of their lives. Male bees, wasps and ants are also haploid.

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