BIO Chapter 13 Word Scramble
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Term | Definition |
Gametes- | reproductive cells |
Haploid- | single set of chromosomes in gamete cells produced by ovaries and testies |
Diploid cell- | cell formed by egg and sperm coming together, single cell |
Zygote- | fertilized egg |
Somatic cells- | diploid, 46 chromosomes, 23 from each parent |
Autosomes- | a chromosome not directly involved in determining sex |
Sex chromosomes- | determines sex of a child |
Homologous chromosome- | two chromosomes of pair with the same length, centromere position, and staining pattern |
Karyotype- | a pair of homologous replicated chromosomes |
Meiosis 1- | separates homologous chromosomes |
Prophase 1- | spindle forms, chromosomes condense, nuclear envelope breaks down |
Metaphase 1- | pairs of chromosome arrange in a line |
Anaphase 1- | homologous chromosomes separate and head towards poles |
Telophase 1 and cytokinesis- | two haploid cells form, each chromosome still has two sister chromatids |
Meiosis 2- | sister chromatids separate |
Prophase 2- | spindle forms, chromosomes begin to drift toward metaphase plate |
Metaphase 2- | chromosomes position in a line, crossing over causes these chromosomes to be genetically different |
Anaphase 2- | sister chromatids split, moving as individual chromosomes towards poles |
Telophase 2 and cytokinesis- | nuclei form, chromosomes condense, four genetically different daughter cells form |
Crossing over- | occurs in metaphase 2, causes chromosomes to be genetically different |
Random fertilization- | a way of genetic variation by the sperm randomly selecting egg cells |
Independent assortment- | random grouping together of chromosomes at metaphase 1 that causes genetic variance |
Created by:
mr_spangler
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