Xu, Worksheet 3

Xu, Worksheet 3 - Bild1: The Cell Fridays 10am Centr217A...

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Bild1: The Cell TA: Xu Yu Zeng Office Hours Fridays 10am Centr217A xyzeng@ucsd.edu Mon TapEx 11am Worksheet 3 Basic Principles of Heredity A genetic factor that helps determine a characteristic is called a ____________. Genes frequently come in different versions called ___________. They may be dominant or recessive. Different alleles for a particular gene are from the __________ on homologous chromosomes-you can think of it as the location of the gene. The set of alleles that an individual organism possesses is their ________________. Heterozygous: two _____________ alleles at a locus (i.e. ____) Homozygous: two of the _________ alleles at a locus (i.e. _______) Homozygous dominant: two dominant alleles (i.e. ________) Homozygous recessive: two recessive alleles (i.e. _______) A ______________ is the expression of a character ([ex] ___________) Mendel genetics Mendel studied and observed characteristics of the pea plant to study how the genetic material was inherited. His Experiment: o He crossed different varieties of peas by removing the anthers from flowers to prevent self-fertilization. He dusted the pollen from a different plant to form new plants. He focused on ____________ breeding. o
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Xu, Worksheet 3 - Bild1: The Cell Fridays 10am Centr217A...

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