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BoydBioUnit 10 & 11

GEHS-BoydUnit10/11

QuestionAnswer
Chromatin The DNA and proteins in the nucleus of a non-dividing cell "uncoilded and spread out"
Chromosomes The DNA and proteins in a divided cell coiled and rod shaped.
DNA Stores information, organic compound, polymer, mad of monomers.
Prokaryotic Cell No nucleus, DNA free floating "one circular"
Humans have how many Chromosomes 46 (23 pairs)
Sex chromosomes Determine the sex in humans.
Autosomes Chromosomes other than sex chromosomes. Humans have 22 pairs.
Homologous chromosomes Chromosomes that are the same
Karyotype Photo micrograph of chromosome of a dividing cell.
Asexual without sex
Cell Cycle Set of events that make up life of a cell.
Interphase Period of the cell cycle between cell division. Normal cell activity, cell grows, DNA duplicates.
Mitosis Part of the eukaryotiuc cell division during which the cell nucleus divides.
Cytokinesis Division of cytoplasm during cell division. (fluid)
Prophase Nuclear membrane breaksdown, DNA coils, spindle fibers form.
Metaphase Chromosomes are lined up at the EQUATOR. Centromeres attached to spindle fibers.
Anaphase Centromere duplicates and splits. Sister chromatids migrate to opposite poles.
Telophase Nuclear membrane reforms. DNA uncoils.
Meiosis Process of nuclear division that reduces the number of chromosomes in a new cell to half the original number.
Asexual No joining of sex cells, so without sex.
Sexual Joining of sex cells, so with sex.
Human Chromosome # 46
Human Homologous Chromsome # 23
Fertilization Joining of gametes
Zygote The resulting body formed by the joining.
Diploid # Cell with a full set of chromosomes.
Haploid # Half of the dipiold number.
Spermatogensis Process where sperm is produced in testes with half chromosome number
Oogenesis The process where eggs are produced in the ovaries.
Created by: grimshaw'sclass
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