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science genes vocab
vocab o science genetics
| Question | Answer |
|---|---|
| genetics | field of biology devoted to understanding characteristic transmission |
| heredity | transmitional characteristics from parents to offspring |
| trait | a catagory within alternate characteristics can be observed |
| cross pollination | reproduction involving two separate flowers and xsomething to move the pollin |
| p generation | each parental generation |
| f1 generation | the first offspring of the p1 generation |
| f2 generation | the offspring of the f1 |
| dominant | the trait which is seen and dominates the recessive |
| recessive | has no observable effect on an organisms appearance when with dominant |
| law of segregation | states that a pair of factors is segregated during formation of a gamete |
| law of independent assortment | states that factors for different characteristics ar edistributed to gametes independetly |
| alleler | each of several forms of a gene |
| genotype | the makeup of an organism. consists of alleles |
| phenotype | the appearance of an organism as a result of its genotype |
| homozygous | when both alleles of a pair are alike |
| heterozygous | when the two alleles in a pair are different |
| monohybrid cross | a cross between individuals that involves one pair of contrasting traits |
| the steps involved in mendels experiments on piece? | 1growing plants that are pure 2cross pollinating them with contrasting traits 3.self pollonating f1 generation to make the f2 generation |
| what the difference between a gene and an allele | alleles are each of several forms of a gene |
| will both alleles from an allele pair be passed on to each gamyte which law describes this | no the law of segregation |
| is the passage of alleles for 2 different traits dependent on each other which law describes | no law of independent assortment |
| does the law of indpendent assortment work for genes located near each other on the same chromosome | no |
| how is molecular genetics different from mendelian genetics | mendelian was based off of phenotypes |
| heterozygeous | Aa 2 different versions of genae 2 traits expressed |
| homozygous dominant | AA both chromosomes have identical copies dominant alleles |
| homozygous recessive | aa both chromosomes have identical copies of recessive alleles |
| in a test cross what do you mate mystery organisms with | homozygous recessive |
| this is a classic phenotypic ratio of a heterozygous dihybrid cross | 9:3 3:1 |
| a possible advantage of this disease is a resistence to malaria | sickle cell anemia |
| this law states that one allele from each allele pair will be randomly passed on to each gamyte | law of segregation |
| xlinked blood disease that effects clotting ability | hemophilia |
| extra fingers | poly adactily |
| single allele dominant degenerative disease | (blank) |
Created by:
lilee256
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