________ can be defined as the fraction of the variation in a population that is due to differences in genes
Fill in the blank(s) with correct word
Heritability
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Chytrids are the only fungi that produce spores propelled by flagella
a. True b. False
Which neurotransmitter governs the associated disease or disorder?
a. serotonin – stress b. glutamate – Huntington’s disease c. dopamine – Huntington’s disease d. GABA – Parkinson’s disease
e. epinephrine – Parkinson’s diseaseAllopatric speciation results from __________ isolation of a population.
Fill in the blank(s) with the appropriate word(s).
Xeroderma pigmentosum (XP) is a rare autosomal recessive disorder. Patients with XP exhibit a cellular hypersensitivity to ultraviolet (UV) radiation, a high incidence of skin cancer, and premature aging. Based on these clinical characteristics, what is the most likely cause for this disease?
A. lack of telomerase activity B. defects in DNA repair C. shortened telomeres D. defects in DNA replication