In snapdragons, heterozygous plants have pink flowers, one of the homozygous conditions produces red flowers, and the other homozygous condition produces white flowers. When a parent plant with red flowers is crossed with a parent plant with white flowers, what percentage of the F1 offspring are expected to have pink flowers?
a) 75%
b) 25%
c) 0%
d) 100%
e) 50%
Answer: d) 100%
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The meninges are four chambers in the brain that are filled with cerebrospinal fluid, which circulates through them to protect the brain.
a. true b. false
There are more species of _____________ than there are species of plants.
a. beetles b. mammals c. crustaceans d. flies e. bees
What type of cell retains the ability to divide repeatedly into any type of cell, thus allowing the body to repair and grow?
What will be an ideal response?
A student is viewing a single-celled organism under low-power objective of a compound light microscope . Describe an adjustment the student would need to make to see the organism clearly after switching from low power to hight power. In your description include the name of the part of the microscope that would be used to make the adjustment.
What will be an ideal response?