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Ch 3 Science

TermDefinition
Asexual Reproduction reproduction by one parent and the offspring is almost identical to parent
hybrid an offspring that has one recessive and one dominant allele
fertilization process where a male gamete joins a female gamete to produce a new organism
DNA the genetic material for all living things
mitosis the 2nd stage of cell cycle, nucleus divides and genetic info is shared
codominant when two alleles are both expressed
incomplete dominance the dominant allele is only partly expressed
mutation any change in a genome or chromosome
allele one form of a gene for a trait
sexual reproduction reproduction where each parent passes on traits to their offspring
interphase 1st phase of cell cycle, chromosomes copy one another
cytokineses 3rd stage in cell cycle, two new daughter cells are formed
Gregor Mendel Father of genetics
ribosomes where protein is made in a cell
dominant will be expressed when paired with a recessive gene
recessive will only be expressed if paired with another recessive gene
Reasons to study DNA help solve crime helps doctors and scientists to treat diseases and illnesses may help identify and correct diseases before they are expressed
Punnett Square a diagram that can help predict the genotype of an offspring
genotype the pair of alleles that make the trait (Tt)
phenotype the trait that is physically shown (tall)
meoisis process that produces gametes (egg/sperm)
location of DNA located in the chromosomes inside the nucleus
DNA shaped like a double helix (twisted ladder) unique to each person just like a fingerprint genetic material of all living things
replication process used when cells copy DNA
benefits of mutations stronger animals plants resistent to disease cows producing more milk larger fruit/vegetables
stages of the cell cycle interphase mitosis cytokinesis
Created by: julieryan
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