Population databases are necessary to interpret DNA fingerprints because alleles occur with different frequencies in different populations.

A bell curve describes the distribution of phenotypic classes of a polygenic trait.

Which of the following proteins affects body weight?

The figure below illustrates ______ in plants.

Which of the following is exemplified by a pea tendril contacting a string or wire and coiling around it for support?

You trim two different houseplants. The first houseplant becomes bushier, but the pruning does not affect the growth of the second plant. A possible explanation is ______.

Several tomato plants are growing in a small garden plot. If soil water potential were to drop significantly on a hot summer afternoon, which of the following would most likely occur?

Briefly explain two homologous (resulting from common ancestry) and two analogous (resulting from similar constraints) structures or processes shared between animals and plants.

Which of the following best describes substances that enter a plant through the root system?

Phloem transport is described as being from source to sink. Which of the following would most accurately complete this statement about phloem transport as applied to most plants in the late spring?Phloem transports ________ from the ________ source to the ________ sink.