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Exam 2 Flashcards
Photosynthesis-Macroevolution
25
Biology
Undergraduate 1
07/10/2010

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Term
The study of inheritance
Definition
Genetics
Term
Passing of biological traits via one generation to the next
Definition
Inheritance
Term
A discrete unit of hereditary information consisting of a specific nucleotide sequence of DNA.
Definition
Gene
Term
Contains genetic code
Definition
DNA
Term
DNA and associated proteins in condensed form
Definition
Chromosomes
Term
Diffuse (uncondensed form of DNA and proteins)
Definition
Chromatin
Term
Constant number of chromosomes for a specific species
Definition
Chromosome #
Term
One set of genetic code
Definition
Haploid
Term
Two sets of genetic code
Definition
Diploid
Term
Cell division that results in two identical daughter cells (2n)
Definition
Mitosis
Term
Cell division that results in haploid cells
Definition
Meosis
Term
A sex cell, a haploid egg or sperm
Definition
Gamete
Term
Period between cell divisions
Definition
Interphase
Term
The division of cytoplasm to form two separate daughter cells. Occurs during telophase
Definition
Cytokinesis
Term
Two members of a pair of chromosomes. They look the same but contain different information.
Definition
Homologous Chromosomes
Term
Duplicated identical chromosomes attached at centromere
Definition
Sister chromatids
Term
Point of constriction where on a chromosome
Definition
Centromere
Term
Web of microtubules that move/pull chromosomes apart during cell division
Definition
Spindle
Term
Organelles that produce spindle fibers
Definition
Centrioles
Term
Place where components for ribosomes are made
Definition
Nucleolus
Term
Chromatin condenses into chromosomes, spindle apparatus forms, nuclear membrane disappears
Definition
Prophase
Term
Chromosomes line up against the cell plate (center)
Definition
Metaphase
Term
Sister chromatids split and move towards opposite cells
Definition
Anaphase
Term
Chromosomes arrive at opposite poles, then they diffuse again into chromatin. Daughter nuclei form, and nuclear envelopes reappear.
Definition
Telophase
Term
Tetrad
Definition
Two Homologous Chromsomes, binding by synapsis.
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