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Apologia Biology Module 7
Cellular Reproduction and DNA
23
Biology
10th Grade
07/19/2012

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Term
Genetics
Definition
The science that studies how characteristics get passed from parent to offspring.
Term
Genetic Factors
Definition
The general guidline of traits determined by a person's DNA
Term
Environmental Factors
Definition
Those "nonbiological" factors that are involved in a person's surroundings such as the nature of the person's parents, the person's friends, and the person's behavioral choices.
Term
Spiritual Factors
Definition
The factos in a person's life that are determined by the quality of his or her relationship with God.
Term
Gene
Definition
A section of DNA that codes for the production of a protein or a portion of protein, thereby causing a trait.
Term
Messenger RNA
Definition
The RNA that performs the transcription
Term
Anticodon
Definition
A three-nucleotide base sequence on tRNA
Term
Codon
Definition
A sequence of three nucleotide bases on mRNA that refers to a specific amino acid.
Term
Chromosome
Definition
DNA coiled around and supported by proteins, found in the nucleus of the cell.
Term
Mitosis
Definition
A process of asexual reproduction in eukaryotic cells
Term
Interphase
Definition
The time interval between cellular reproduction.
Term
Centromere
Definition
The region that joins two sister chromatids
Term
Mother Cell
Definition
A cell ready to begin reproduction, containing duplicated DNA and centrioles.
Term
Karyotype
Definition
The figure produced when the chromosomes of a species during metaphase are arranged according to their homologous pairs.
Term
Diploid Cell
Definition
A cell with chromosomes that come in homologous pairs
Term
Haploid Cell
Definition
A cell that has only one representative of each chromosome pair.
Term
Diploid Number
Definition

The total number of chromosomes in a diploid cell.

 

abbreviated as 2n

Term
Haploid Number
Definition

The number of homologous pairs in a diploid cell.

 

abbreviated as "n"

Term
Meiosis
Definition
The process by which a diploid (2n) cell forms gametes (n)
Term
Gametes
Definition
Haploid cells (n) produced by diploid cells (2n) for the purpose of sexual reproduction.
Term
Virus
Definition

A non-cellular infectious agent that has two characteristics:

  1. It has genetic material (RNA or DNA) inside a protective protein coat.
  2. It cannot reproduce on its own.
Term
Antibodies
Definition
Specialized proteins that aid in destroying infectious agents.
Term
Vaccine
Definition
A weakened or inactive version of a pathogen that stimulates the body's production of antibodies which can aid in destroying the pathogen.
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