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Chapter 3 science
Chromosomes and Inheritance
Chapter 3 | Vocab |
---|---|
Fertilization | An egg and sperm cell joining to form a new cell in a process. |
Trait | Specific characteristic that an organism can pass to its offspring through its genes |
Gene | a sequence of DNA that determines a trait and is passed from parent offspring. |
Inheritance | The process by which an offspring receives genes from its parents. |
Allele | A different from of the same gene. |
Heredity | The trait passing of traits from parent to offspring,it is important to learn about the history behind the science |
Dominant allele | Is one whose traits always shows up in the organism when the allele is present |
Recessive allele | Is hidden whenever the dominant allele is present |
probability | A number that describe how likely it is that an event will occur |
genotype | An organism;s genetic makeup or combination of alleles |
phenotype | The organism's physical appearance or visible traits |
Chromosomes | code of that appears on structures these thread-like structures within a cell's nucleus contain DNA |
cell cycle | the series of events in which a cell grows,prepares for division,and divides to form daughter cells |
pedigree | A tool that genetics use to map out the inheritance of traits |
meiosis | Sex cells(sperm and eggs) are formed through a very specialized process |
chromatids | Each chromosomes split into two rod-like structures |
mitosis | cell divide to make 2 genetically identical new cells in a process |
Asexual reproduction | Genetically identical to the parent |
Sexual reproduction | two parents combine their genetic |