Exam Questions and CORRECT Answers
cell division - CORRECT ANSWER - The final stage of the cell cycle. Cell division
includes the transfer of DNA from the parent cell to the daughter cells
asexual reproduction vs sexual reproduction - CORRECT ANSWER - Asexual
reproduction: generates offspring that are genetically identical to a single parent (mitosis)
Sexual reproduction: two parents contribute genetic information to produce unique offspring.
(two steps: meiosis, fertilization)
binary fission - CORRECT ANSWER - A form of asexual reproduction in which one cell
divides to form two identical cells. used by prokaryotic cells (bacteria)
mitotic division - CORRECT ANSWER - A type of cell division that generates two
genetically identical daughter cells from a single parent cell in eukaryotes. It consists of two
steps: mitosis and cytokinesis.
what are the products of mitotic cell division - CORRECT ANSWER - 2 identical
daughter cells
cell cycle - CORRECT ANSWER - series of events in which a eukaryotic cell grows,
prepares for division, and divides to form two daughter cells
interphase - CORRECT ANSWER - Cell grows, performs its normal functions, and
prepares for division; consists of G1, S, and G2 phases. Longest stage (90% of cells life is spent
here)
G1 phase - CORRECT ANSWER - The "first gap", or growth phase, of a newborn cell
, S phase - CORRECT ANSWER - The "synthesis" phase of the cell cycle; the portion of
interphase during which DNA is replicated.
G2 phase - CORRECT ANSWER - The "second gap" or growth phase of the cell cycle,
consisting of the portion of interphase between the S phase and cell division
G0 phase - CORRECT ANSWER - A nondividing state in which a cell has left the cell
cycle.
Mitosis - CORRECT ANSWER - Division of the nucleus, the first step of mitotic division.
Mitosis is divided into four main phases: prophase, metaphase, anaphase, and telophase
sister chromatids - CORRECT ANSWER - The two identical DNA molecules produced by
the replication of a chromosome.
Centromere - CORRECT ANSWER - The central region of a chromosome that attaches
sister chromatids together
Cytokinesis - CORRECT ANSWER - Division of the cytoplasm during cell division
Meiosis - CORRECT ANSWER - A specialized type of cell division that kicks off sexual
reproduction. It occurs in two stages: meiosis I and meiosis II, each involving one round of
nuclear division followed by cytokinesis
somatic cells vs gametes - CORRECT ANSWER - Somatic- non sex cell. (body cells)
Gametes- sex cells. Male gametes are sperm, female gametes are eggs
Diploid vs. Haploid - CORRECT ANSWER - diploid: possessing 2 sets of chromosomes
(2n). somatic cells are diploid.