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Mendel's Pinciples
Mendel's Pinciples--not including independent assortment
| Question | Answer |
|---|---|
| specific characteristics that vary among individuals | traits |
| the offspring of true-breeding parents, possibly having different traits | hybrid |
| factors that determine traits ( factors was Mendel's term for these) | genes |
| sex cells, egg or sperm | gametes |
| the different forms of a gene | alleles |
| the form of the gene that is expressed ( if two factors are present and one of the factors is ___ it will be expressed) | dominant |
| the form of the gene that is hidden or masked( this will only be expressed when two of these are present) | recessive |
| Inheritance is determined by individual units called ____ | genes |
| the individual units that determine inheritance are passed on from parents to offspring through the parent's _______ | gametes |
| sexual reproduction includes the cell division process of ___ and the making of a diploid zygote by the process of ____ | meiosis and fertilization |
| with traits that have more than one form such as peas that are yellow or green.. some forms of the gene are ____ and only one gene needs to be present to be expressed | dominant |
| some forms of genes are ____ and can only appear when that organisms has 2 of them | recessive |
| the only way to be recessive is two have two of the same genes or alleles which is called ____ ( use proper genetic term) | homozygous |
| If the organism has 2 different genes such as Tt they are called ___( use the proper genetic term) | heterozygous |
| In peas if T= tall and t = dwarf , and organism that if Tt will show the ____ form of the trait and be tall | dominant |
| An individual has ____ (#) factor(s) per trait and gives ___# factor(s) per trait to their offspring | 2 and 1 |
| If an individual is described as having 2 traits, then its genotype should have ___(#) factors | 4 ( 2 per trait) |
| The individual's factors that are described by pairs of letters for every trait is called the ___ | genotype |
| When gametes are formed, the pairs of hereditary factors ____ so that each sex cell can donate 1 per trait | separate |
| What is Mendel's law of Segregation | when gametes are formed the genes that are in the parent separate to make the egg or sperm .. then when fertilization occurs the gene pair will unite in a NEW offspring for the next generation |
Created by:
shemehl
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