EVOLUTION AND ECOLOGY PRACTICE SET
ANSWERS FULL SOLUTION
◉ Interphase.
Answer: G1, S, and G2 phases where the cell grows and replicates
DNA
◉ Mitotic phase.
Answer: Division of the nucleus and cytoplasm
◉ Origin of replication.
Answer: DNA sequence where replication begins
◉ Helicase.
Answer: Enzyme that unwinds DNA strands
◉ Topoisomerase.
Answer: Enzyme that relieves tension and breaks hydrogen bonds
◉ Replication fork.
,Answer: Y-shaped region where DNA strands separate
◉ Primase.
Answer: Enzyme that synthesizes RNA primers
◉ DNA polymerase.
Answer: Enzyme that adds nucleotides to the 3' end of DNA
◉ Okazaki fragments.
Answer: Short DNA fragments formed on the lagging strand
◉ Mismatch repair.
Answer: Mechanism that replaces incorrect nucleotides
◉ Nucleotide excision repair.
Answer: Removes larger damaged sections of DNA
◉ Telomeres.
Answer: Repeating DNA sequences protecting chromosome ends
◉ Telomerase.
Answer: Enzyme that lengthens telomeres
, ◉ Genotype.
Answer: Exact DNA sequence of an organism
◉ Phenotype.
Answer: Observable characteristics of an organism
◉ Transcription.
Answer: Process of synthesizing RNA from DNA
◉ Translation.
Answer: Process of synthesizing protein from mRNA
◉ mRNA.
Answer: RNA carrying genetic instructions
◉ tRNA.
Answer: RNA that transports amino acids
◉ rRNA.
Answer: RNA forming ribosomes