Mutations in the genetic code can occur when . A. the DNA is carried from the nucleus to the ribosome
B. DNA duplicates and an amino acid is changed
C. amino acids are transported from the cytoplasm to ribosomes
D. the cell divides into daughter cells

Mutations can only occur (from the options given) when DNA duplicates so, option would be the right answer :D

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.