Answer:
B. 30%T, 20%G, 20%C
Explanation:
The Chargaff rule states the relationship in DNA molecules based on nucleotide composition. It is based on the fact that in a double-helical DNA molecule, a purine base of a strand always pairs with a pyrimidine base of the other strand. According to the Chargaff rule, the number of adenine bases equals the number of thymine bases, and the number of guanines equals the number of cytosines.
According to the given information, the percentage of adenine (A) in the DNA of a particular organism is 30%. This means that the DNA of this organism would have 30% of thymine nucleotides. Out of total 100% DNA nucleotides, the proportion of guanine + cytosine nucleotides= 100- (30 + 30) = 100-60= 40.
In a double-helical DNA, the number of guanines equals the number of cytosines. Therefore, the percentage of guanine and cytosine nucleotides each= 40/2=20%
The larger the surface area of the mitochondrial chloroplast would allow more energy to be received from the sun, which would later affect the energy output by increasing the amount of energy released.
Many cases seem to occur without an apparent cause, while some may occur due to a genetic ( inherited ) defect, environmental exposure during pregnancy, or a combination or both factors. Syndactyly may also occur as a part of an underlying genetic syndrome and can be found in over 300 different genetic syndromes
