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Science Ch 3

Chapter 3 Review

sexual reproduction reproduction from the union of two parents that each pass on traits to the offspring
specialized reproductive cell gamete
male gamete sperm
process in which a male gamete joins a female gamete to produce a new cell that develops into an organism fertilization
stage in the cells cycle during which the nucleus divides mitosis
reproduction in which one parent produces offspring that is identical to the parent asexual reproduction
female gamete egg
phase of the cell cycle in which the cell grows and makes a copy of its chromosomes interphase
stage of the cell cycle in which the nucleus divides mitosis
stage of the cell cycle in which a new cell wall or membrane divides the cell cytokinesis
characteristics of living things genetic traits
structures in nucleus that store DNA chromosomes
different forms of a gene for a trait allele
result of two alleles both being expressed codominant
gentic material of all living things DNA
an organism that has 2 different genes for the same trait hybrid
result when the dominant allele is only partly expressed incomplete dominance
cell division that reduces the number of chromosomes by half meiosis
The "father" genetic study Gregor Mendel
an trait that is always expressed dominant trait
a trait that is only expressed when paired with another allele of the same type recessive trait
a tool used by scientists to predict the the outcome of a genetic cross Punnett Square
any change in a genome or chromosome mutation
process of making identical copies of DNA replication
cell structures where protiens are made ribosomes
Created by: ddavis201