BIO 110 unit1lesson1

double stranded helix macromolecule; replicates and controls cellular activities

how many chromosomes do genetic cells start meiosis with?

___ are called undifferentiated cells, precursor cells, or stems and are sensitive to radiation

single-stranded cell structure macromolecule; transfer and messenger system for DNA

what is somatic cell proliferation (division) called?

what are two general types of cells?

what are the principal organ systems of the body?

are both nucleic acids

what is the period of cell growth between divisions?

how many phases are there in the somatic cell cycle?

what are the four main components within a cell?

what is the process where-by genetic cells undergo reduction division?

defined as the act of a single cellor group of cells to reproduce and multiply in number

what intracellular structures are located in the cytoplasm?

subphase when final segment of mitosis the structural chromosomes disappear into a mass of DNA?

in which mitosis subphase does each chromosome split at the centromere?

how many subphases are there in mitosis?

fluid substance comprising bulk of cell, contains organelles, surrounded/contained by cell wall

in which mitosis subphase do chromosomes appear and damage induced by radiation become visible?

which theory is described as, DNA molecular structure is the genetic constituent of the cell?

in which mitosis subphase does the nucleus swells and DNA begin to take structure?

what are the two phases of the somatic cell cycle?

what is the basic structure and function within a human organism?

large central structure contained by nuclear membrane, control center of cell, and contains DNA

what law states that radiosensitivity of living tissues varies with maturation and metabolism?

by what two things are the cells of a tissue system identified?