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Bio Genetics

Test

QuestionAnswer
Meiosis Process where an organism makes sex cells- Results in cells with half the number of normal chromosomes
Genetics The branch of biology that studies heradity
Genotype The alleles an organism has (letter)
Phenotype The way the organism looks or behaves due to the genotype they possess (physical trait)
Heterozygous When there are 2 different alleles of a gene- one inherited from each parent
Homozygous When there are 2 identical alleles of a gene- both are inherited from the parents, resulting in a consistent genotype
Polygenic inheritance When one trait is controlled by 2 or more genes- Ex: Eye or skin color in humans, coat colors in labradors
Incomplete dominance When traits are neither dominant not recessive (instead they blend together)
Codominance When neither allele are dominant over the other, so they both get expressed
Mitosis End product is 2 identical daughter cells-creates body cells- purpose is growth and development
Meiosis End product is 4 unique daughter cells (sperm or egg)- creates sex cells- purpose is sexual reproduction- crossing over occurs
Meiosis and mitosis Undergo DNA replication- create new cells- occur in plant and animal cells
Why is it almost impossible to have a male calico cat? Because the calico pattern requires 2 X chromosomes and males normally only have one (XY)
Created by: aidenlage
 

 



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