unit 7 Flashcards
the ability of cells to pass on their characteristics to new cells is most directly related to the ability of
chromosomes to duplicate
what term is used when a tumor is non cancerous
benign
what kind of bonds form between base pairs
hydrogen pairs
a cell duplicates its chromosomes during which phase
interphase S
what causes the DNA to move in the electrophoresis lab
electricity
during the process of mitosis, chromatids seperate into daughter chromosomes during which phase
anaphase
during which phase of the cell cycle are the chromosomes duplicated in preparation for division
interphase
the types of enzymes produced in a cell are regulated by the
order of nucleotides in DNA molecules
what is true of telophase
two nuclear membranes have formed and the nucleolus reappeared
during what phase of mitosis do the chromosomes line up at the equator
metaphase
DNA gel electrophoresis seperates DNA fragments by
size
what caused DNA pieces to separate into a banding pattern
the DNA pieces migrated through the electrophoresis gel at varying speeds due to their lengths
what answer gives the stages of mitosis in proper chronological order
prophase, metaphase, anaphase, telephase
during which phase of mitosis do the sister chromatids get pulled towards opposite poles
anaphase
an inheritable mutation may occur if an organism has a change in its
DNA structure
which of the following is true of prophase
the chromosomes have replicated and started to become visible
the purpose of the respiratory system in mammals is to provide the
mitochondria with oxygen needed for cellular respiration
what happens in interphase G2
organelle replication
what protein is responsible for unzipping the DNA for replication
DNA helicase
when looking into a microscope you see a line of homologous chromosomes near the center of the cell, what phase is this
metaphase
what molecule is most responsible for determining a persons eye color, body structure, and cellular enzyme reconstruction
deoxyribonucleic acid
during DNA replication, DNA molecules seperate into single strands, which are then used to create two identical strands of DNA. this process ensures…
that the daughter cells are genetically identical to parent cells
