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LS-Heredity

Genetics/Heredity

QuestionAnswer
____________are the physical characteristics that are studied in genetics. Traits
Scientists call the factors that control traits ________________. genes
A ______________ allele is one whose trait always shows up in the organism when the allele is present. dominant
A ___________ has two different alleles for a trait hybrid
TT means that two ______________ alleles are present. dominant
Tt means that one __________ and one _______ allele are present. dominantfrecessive
tt means that two _____________ alleles are present recessive
___________is the likelihood that a particular event will occur. Probablity
A _______ ___________ is a chart that shows all the possible outcomes of a genetic cross. punnett square
An organism’s _________ is its physical appearance. phenotype
An organism’s _________ is its genetic makeup. genotype
An organism that has two identical alleles for a trait is said to be ________. homozygous
A _____________ organism has two different alleles for a trait. heterozygous
In __________________, the alleles are neither dominant nor recessive. codominance
The _____________ is the basic unit of structure and function in the body. cell
The function of the ___________ system is to enable movement. muscular
The main function of the ____________ system is breathing (taking in oxygen and releasing carbon dioxide) respiratory
The function of the ____________ system is for support and protection (ex: skull, ribs) skeletal
The ___________ system includes the skin and protects from the external environment. integumentary
The __________ system breaks down food and absorbs nutrients. digestion
The __________ system removes wastes and regulates water. excretory
The ____________ system transports oxygen and nutrients to the cells. cardiovascular
The _____________ system directs all the body functions. nervous
Created by: lschramme
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