Answer:
i believe it would be all <u>except</u> help the cell reproduce and help digest food
Explanation:
this is because the organelles keep the cells alive so they get rid of waste and things that the cell does not need to function but it does not digest food really
Answer:
the answer is D
Explanation:
when water is frozen it becomes solid.. when it melts it becomes twice much water than before
Answer:
Gen lac z: codifies the enzyme β-galactosidase, that hydrolyzes lactose in glucose and galactose.
The other two structural genes are lacy, which is a permease that helps to transfer lactose into the cell. Finally, lacA is a trans-acetylase.
Also, the operon counts with a promoter, that is the region recognized by the RNA polymerase. An Operator region, that is recognized by the LacI repressor, and the repressor gen lacL.
Answer:
The mutagen might alter the DNA sequence, thereby altering the accessibility to transcription factors and thus activate the expression of oncogenes involved in cell proliferation
Explanation:
The DNA molecule consists of two antiparallel strands of nucleotides that wind around each other. Each DNA strand is formed by a backbone containing sugar (deoxyribose) and phosphate groups. This arrangement allows for DNA replication and transcription (and consequently also protein synthesis) to occur. If a mutagen agent binds to DNA, this might modify its structure, thereby altering DNA replication and transcriptional activity.
Answer:
Viruses must have a host cell in order to replicate and do not take in nutrients as energy
Explanation: