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LS-Heredity
Genetics/Heredity
Question | Answer |
---|---|
____________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 |