A. they have a higher proportion of adenine–thymine than guanine–cytosine base pairs.
The option A represents the complete opposite of "high-gc gram-positive bacteria". High GC content means that this bacteria have more guanine ans more cytosine than the other base pairs- adenine–thymine. This means all the other options are correct.
It is A , d , and c . I can bet my last bagel bite
<span>one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.</span>
NASA did not invent the smoke detector.
