In pea plants, the gene for round seeds (R) is dominant, and wrinkled seeds (r) is recessive. The endosperm of the pea is also either starchy, a dominant gene (S), or waxy (s). What can be said of a fully heterozygous, dihybrid cross?
A. Some offspring could be homozygous for both dominant genes.
B. Some offspring could be homozygous for one dominant gene such as round seed and homozygous recessive for the other recessive waxy gene.
C. Some offspring could be homozygous for both recessive genes.
D. All of these choices are impossible combinations in a dihybrid cross.
E. All of these choices are possible combinations in a dihybrid cross.
Answer: E
You might also like to view...
Which is an example of a species with K-selected adaptations?
A. dandelion B. fruit fly C. herring D. bobcat
If the concentration of sugar molecules in water on side "A" of a selectively permeable membrane is 5 percent, and the concentration of sugar molecules in water on side "B" of a selectively permeable membrane is 15 percent, which way will the water move and why?
a. The water will mostly move from side "B" to side "A" because the water concentration is higher on side "B." b. The water will mostly move from side "A" to side "B" because the water concentration is higher on side "A." c. The water will mostly move from side "A" to side "B" because the water concentration is higher on side "B." d. The water will not move at all because the water concentrations are isotonic.
Whooping Cough is transmitted via Respiratory Droplets. The ______ Stage lasts 1-2 weeks, while the ______ Stage is characterized by severe coughing
Fill in the blank(s) with the appropriate word(s).
Plants are raised under artificial lights turned off and on by an electric clock. Some are given long periods of light, others short periods. This is an example of
A. an experiment. B. a theory. C. deductive reasoning. D. inductive reasoning. E. a hypothesis.