In McClintock's maize studies, which genetic element is found at the site of chromosome breakage?
What will be an ideal response?
dissociation (Ds) element
Biology & Microbiology
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The transfer of antibodies in breast milk is a good example of
A. artificially acquired active immunity. B. artificially acquired passive immunity. C. naturally acquired active immunity. D. naturally acquired passive immunity.
Biology & Microbiology
Your father is heterozygous for the recessive disorder phenylketonuria (PKU). You know your mother has two "good"
alleles. You have a ____chance of having the disorder.
a. 0% b. 100% c. 25% d. 50% e. 75%
Biology & Microbiology
A(n) __________ (fungus-root) is a symbiotic interaction between a fungus and a plant. Fill in the blank(s) with the appropriate word(s)
Biology & Microbiology
In humans, the thirst center is located in the ____
a. adrenal cortex b. hypothalamus c. anterior pituitary d. pons e. thymus
Biology & Microbiology