The presence of dimples in the cheeks, and the presence of freckles are both dominant traits in humans. a woman who has no dimples or freckles mates with a man who has dimples and freckles and is heterozygous for both the dimple and freckle traits. which of the following is true?
a.
none of their children will have dimples and freckles.
b.
1/2 of their children will have dimples and freckles.
c.
1/4 of their children will have dimples and freckles.
d.
all of their children will have dimples and freckles.

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.

When rutherford performed his metal foil experiment, he was surprised that most of the alpha particles

Which action is a reflex action. a. asking for coffe in a cold climate b. blinking when light is flashed in the eyes c. drinking water when thirsty. d. swallowing food e. taking an exam