Since each child of two heterozygous parents has a 50% chance of receiving a recessive trait from each parent,
A. if the first child is phenotypically recessive, then the next child has a 1/2 chance of being phenotypically recessive.
B. if the first child is phenotypically recessive, then the next child must be phenotypically dominant.
C. if the first child is phenotypically recessive, then the next child has a 3/4 chance of being phenotypically recessive.
D. no matter what the first child's phenotype, the next child will have a 1/4 chance of being phenotypically recessive.
Answer: D
You might also like to view...
What is the probability of both a dominant trait and a recessive trait being expressed in the F1 generation when crossing true breeders, if both traits are independent?
a. 100% b. 25% c. 0% d. 50%
In flowering plants, gametes are produced by the process of mitosis
1.True 2.False
In your study group, your classmates are discussing the relationship between energy expenditure and body size in different animals. There is much confusion as members of the group try to figure this out. How can you explain this to them?
A. A hummingbird has a larger mass-specific metabolic rate than a horse. B. An alligator has a larger mass-specific metabolic rate than a small lizard. C. A horse has a larger mass-specific metabolic rate than a hummingbird. D. A hummingbird has a larger mass-specific metabolic rate than a horse, and a small lizard has a larger mass-specific metabolic rate than an alligator. E. A small lizard has a larger mass-specific metabolic rate than an alligator.
As you visit the high desert of southeastern Arizona, you come to a flowing stream that disappears into the sand
You notice that insects are flying up to the moist sand for a drink, but as the flow varies and waves of muddy water wash over the animals, fine soil particles cover them and entomb them. The beginnings of what process have you just witnessed, and what might the next steps be?