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Unit 4 Reproduction

7th Grade Life Science

TermDefinition
asexual reproduction A reproductive process that involves only one parent and produces offspring that are identical to the parent.
sexual reproduction type of reproduction in which cells from two parents unite to form the first cell of a new organism
mitosis cell division in which the nucleus divides into nuclei containing the same number of chromosomes
meiosis a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.
interphase the resting phase between successive mitotic divisions of a cell, or between the first and second divisions of meiosis.
cytokinesis division of the cytoplasm to form two separate daughter cells
DNA deoxyribonucleic acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.
chromosome a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
cell cycle series of events in which a cell grows, prepares for division, and divides to form two daughter cells
Homologous chromosomes Pair of chromosomes that are the same size, same appearance and same genes.
Fertilization Process in sexual reproduction in which male and female reproductive cells join to form a new cell
Independent (test) variable a variable (often denoted by x ) whose variation does not depend on that of another.
Dependent (outcome) variable a variable (often denoted by y ) whose value depends on that of another.
Control Group the group that does not receive the experimental treatment.
Created by: KellyKirvin
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