Answer:
Radiation and mutations can cause changes in the DNA but there arent substances. Ribonucleic acids can cause errors if they match with the wrong acid.
genes is the answer
A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes multiple genes.
Answer: The correct answer is option (B).
Explanation:
Birth rate in Hungary in 2014 = 12 (per 1000 people)
Death rate in Hungary in 2014= 8 (per 1000 people)
Growth rate = Birth rate - Death rate :
12(per 1000 people) - 4 (per 1000 people)= +4(per 1000 people)
Positive sign indicates that there will be a increase in growth rate by the magnitude of 4 per 1000 people in 2014.
Hence, the correct answer is option (B).
I know that in identical twins, their genetics are much more alike :)