Answer:
Abnormal BRCA1 and BRCA2 genes are found in 5% to 10% of all breast cancer cases in the United States. A study found that women with an abnormal BRCA1 gene had a worse prognosis than women with an abnormal BRCA2 gene 5 years after diagnosis.
Explanation:
The Statement would be true stated by the definition
They first 'cut out' genes using precise biological 'scissors' – restriction enzymes – and paste them into DNA from another organism like a bacterium or yeast where it is copied many thousands or millions of times. Molecular model of a restriction enzyme bound to DNA.
The correct answer is <span>B. They will become separate species.
This is an example of a</span><span>llopatric speciation.
This means that the two populations of the same species gradually develop into separate species after being separated by a geographical barrier.
In the case of the </span><span>Astyanax mexicanus, the two populations are separated by the cave.</span>
