At the nucleosome level DNA is shortened Bbibepute onuH OTBeT: a. does not shorten b.6-7 times 6.7 c. 600 times d. 40 times

The correct answer is b. 6-7 times.At the nucleosome level, DNA is wrapped around histone proteins to form a compact structure called chromatin. During DNA replication, the DNA double helix is unwound and separated into two strands. Each strand serves as a template for the synthesis of a new complementary strand. However, due to the antiparallel nature of DNA strands and the way DNA polymerase synthesizes new strands, the newly synthesized DNA strand is slightly shorter than the original template strand. This difference in length is typically around 6-7 base pairs (bp) per nucleosome.This shortening occurs because DNA polymerase can only add nucleotides to the 3' end of the growing strand, and the replication fork moves in the 5' to 3' direction. As a result, the newly synthesized strand is synthesized in the opposite direction to the unwinding of the DNA, leading to a slight shortening of the new strand compared to the original template strand.